/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 18:35:44,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 18:35:44,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 18:35:44,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 18:35:44,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 18:35:44,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 18:35:44,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 18:35:44,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 18:35:44,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 18:35:44,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 18:35:44,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 18:35:44,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 18:35:44,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 18:35:44,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 18:35:44,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 18:35:44,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 18:35:44,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 18:35:44,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 18:35:44,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 18:35:44,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 18:35:44,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 18:35:44,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 18:35:44,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 18:35:44,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 18:35:44,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 18:35:44,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 18:35:44,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 18:35:44,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 18:35:44,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 18:35:44,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 18:35:44,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 18:35:44,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 18:35:44,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 18:35:44,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 18:35:44,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 18:35:44,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 18:35:44,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 18:35:44,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 18:35:44,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 18:35:44,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 18:35:44,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 18:35:44,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-11 18:35:44,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 18:35:44,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 18:35:44,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 18:35:44,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 18:35:44,275 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 18:35:44,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 18:35:44,276 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 18:35:44,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 18:35:44,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 18:35:44,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 18:35:44,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 18:35:44,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 18:35:44,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 18:35:44,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 18:35:44,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 18:35:44,277 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 18:35:44,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 18:35:44,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 18:35:44,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 18:35:44,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 18:35:44,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 18:35:44,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 18:35:44,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 18:35:44,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 18:35:44,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 18:35:44,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 18:35:44,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 18:35:44,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 18:35:44,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 18:35:44,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 18:35:44,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 18:35:44,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 18:35:44,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 18:35:44,583 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 18:35:44,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2021-03-11 18:35:44,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/111e1b256/160719691cc74bbb8bb8913d37a40c23/FLAG20e4bec69 [2021-03-11 18:35:45,222 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 18:35:45,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2021-03-11 18:35:45,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/111e1b256/160719691cc74bbb8bb8913d37a40c23/FLAG20e4bec69 [2021-03-11 18:35:45,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/111e1b256/160719691cc74bbb8bb8913d37a40c23 [2021-03-11 18:35:45,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 18:35:45,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 18:35:45,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 18:35:45,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 18:35:45,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 18:35:45,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 06:35:45" (1/1) ... [2021-03-11 18:35:45,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d092530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:45, skipping insertion in model container [2021-03-11 18:35:45,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 06:35:45" (1/1) ... [2021-03-11 18:35:45,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 18:35:45,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 18:35:45,993 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i[30929,30942] [2021-03-11 18:35:45,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 18:35:46,005 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 18:35:46,049 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i[30929,30942] [2021-03-11 18:35:46,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 18:35:46,121 INFO L208 MainTranslator]: Completed translation [2021-03-11 18:35:46,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46 WrapperNode [2021-03-11 18:35:46,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 18:35:46,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 18:35:46,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 18:35:46,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 18:35:46,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 18:35:46,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 18:35:46,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 18:35:46,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 18:35:46,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... [2021-03-11 18:35:46,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 18:35:46,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 18:35:46,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 18:35:46,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 18:35:46,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 18:35:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-03-11 18:35:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-03-11 18:35:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-03-11 18:35:46,276 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-03-11 18:35:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 18:35:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 18:35:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 18:35:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 18:35:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 18:35:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 18:35:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 18:35:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 18:35:46,279 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 18:35:46,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 18:35:46,627 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-11 18:35:46,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 06:35:46 BoogieIcfgContainer [2021-03-11 18:35:46,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 18:35:46,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 18:35:46,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 18:35:46,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 18:35:46,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 06:35:45" (1/3) ... [2021-03-11 18:35:46,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9f92f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 06:35:46, skipping insertion in model container [2021-03-11 18:35:46,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:35:46" (2/3) ... [2021-03-11 18:35:46,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9f92f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 06:35:46, skipping insertion in model container [2021-03-11 18:35:46,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 06:35:46" (3/3) ... [2021-03-11 18:35:46,635 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench_longer-2.i [2021-03-11 18:35:46,640 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 18:35:46,643 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 18:35:46,644 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 18:35:46,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,670 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,670 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,670 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,673 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,673 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,675 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,675 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,675 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,675 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,675 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,676 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,679 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,679 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,679 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,680 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,680 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,680 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,680 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,683 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,683 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,685 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,685 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,687 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,687 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,687 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,688 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,692 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,692 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,693 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:35:46,695 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 18:35:46,710 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 18:35:46,729 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 18:35:46,729 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 18:35:46,730 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 18:35:46,730 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 18:35:46,730 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 18:35:46,730 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 18:35:46,730 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 18:35:46,730 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 18:35:46,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 134 flow [2021-03-11 18:35:46,766 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-03-11 18:35:46,766 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 18:35:46,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-11 18:35:46,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 134 flow [2021-03-11 18:35:46,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 126 flow [2021-03-11 18:35:46,778 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 18:35:46,786 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 126 flow [2021-03-11 18:35:46,788 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 126 flow [2021-03-11 18:35:46,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 126 flow [2021-03-11 18:35:46,802 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-03-11 18:35:46,802 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 18:35:46,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-11 18:35:46,804 INFO L116 LiptonReduction]: Number of co-enabled transitions 1080 [2021-03-11 18:35:48,864 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2021-03-11 18:35:49,165 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2021-03-11 18:35:49,288 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-11 18:35:49,291 INFO L131 LiptonReduction]: Checked pairs total: 1057 [2021-03-11 18:35:49,291 INFO L133 LiptonReduction]: Total number of compositions: 55 [2021-03-11 18:35:49,292 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2517 [2021-03-11 18:35:49,310 INFO L129 PetriNetUnfolder]: 3/12 cut-off events. [2021-03-11 18:35:49,312 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 18:35:49,313 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:49,313 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-11 18:35:49,313 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:49,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:49,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1040783160, now seen corresponding path program 1 times [2021-03-11 18:35:49,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:49,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706754223] [2021-03-11 18:35:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:49,524 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-03-11 18:35:49,526 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:35:49,545 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-11 18:35:49,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:49,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706754223] [2021-03-11 18:35:49,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:35:49,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 18:35:49,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179304743] [2021-03-11 18:35:49,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 18:35:49,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:49,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 18:35:49,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 18:35:49,574 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:49,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:49,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:49,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:49,623 INFO L129 PetriNetUnfolder]: 31/63 cut-off events. [2021-03-11 18:35:49,624 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 18:35:49,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 63 events. 31/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 154 event pairs, 2 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 111. Up to 37 conditions per place. [2021-03-11 18:35:49,625 INFO L132 encePairwiseOnDemand]: 110/117 looper letters, 5 selfloop transitions, 7 changer transitions 3/22 dead transitions. [2021-03-11 18:35:49,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 80 flow [2021-03-11 18:35:49,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 18:35:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 18:35:49,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 399 transitions. [2021-03-11 18:35:49,637 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6820512820512821 [2021-03-11 18:35:49,638 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 399 transitions. [2021-03-11 18:35:49,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 399 transitions. [2021-03-11 18:35:49,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:49,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 399 transitions. [2021-03-11 18:35:49,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,652 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,654 INFO L185 Difference]: Start difference. First operand has 18 places, 14 transitions, 34 flow. Second operand 5 states and 399 transitions. [2021-03-11 18:35:49,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 80 flow [2021-03-11 18:35:49,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 22 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 18:35:49,658 INFO L241 Difference]: Finished difference. Result has 23 places, 18 transitions, 75 flow [2021-03-11 18:35:49,659 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=23, PETRI_TRANSITIONS=18} [2021-03-11 18:35:49,660 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 5 predicate places. [2021-03-11 18:35:49,660 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 18 transitions, 75 flow [2021-03-11 18:35:49,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,661 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:49,661 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:49,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 18:35:49,661 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:49,661 INFO L82 PathProgramCache]: Analyzing trace with hash 535192370, now seen corresponding path program 1 times [2021-03-11 18:35:49,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:49,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080922652] [2021-03-11 18:35:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:49,722 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-11 18:35:49,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:49,728 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-03-11 18:35:49,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:49,739 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:49,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:49,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080922652] [2021-03-11 18:35:49,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:35:49,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 18:35:49,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104849321] [2021-03-11 18:35:49,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 18:35:49,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:49,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 18:35:49,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 18:35:49,751 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:49,751 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 18 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:49,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:49,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:49,814 INFO L129 PetriNetUnfolder]: 25/57 cut-off events. [2021-03-11 18:35:49,814 INFO L130 PetriNetUnfolder]: For 37/43 co-relation queries the response was YES. [2021-03-11 18:35:49,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 57 events. 25/57 cut-off events. For 37/43 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 140 event pairs, 0 based on Foata normal form. 8/65 useless extension candidates. Maximal degree in co-relation 161. Up to 33 conditions per place. [2021-03-11 18:35:49,815 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 5 selfloop transitions, 14 changer transitions 0/26 dead transitions. [2021-03-11 18:35:49,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 26 transitions, 152 flow [2021-03-11 18:35:49,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 18:35:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 18:35:49,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 551 transitions. [2021-03-11 18:35:49,818 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6727716727716728 [2021-03-11 18:35:49,818 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 551 transitions. [2021-03-11 18:35:49,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 551 transitions. [2021-03-11 18:35:49,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:49,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 551 transitions. [2021-03-11 18:35:49,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.71428571428571) internal successors, (551), 7 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,823 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,824 INFO L185 Difference]: Start difference. First operand has 23 places, 18 transitions, 75 flow. Second operand 7 states and 551 transitions. [2021-03-11 18:35:49,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 26 transitions, 152 flow [2021-03-11 18:35:49,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 18:35:49,825 INFO L241 Difference]: Finished difference. Result has 31 places, 25 transitions, 160 flow [2021-03-11 18:35:49,826 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2021-03-11 18:35:49,826 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2021-03-11 18:35:49,826 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 160 flow [2021-03-11 18:35:49,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,827 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:49,827 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:49,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 18:35:49,827 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:49,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash 534761563, now seen corresponding path program 1 times [2021-03-11 18:35:49,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:49,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696706955] [2021-03-11 18:35:49,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:49,880 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:49,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:49,887 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-11 18:35:49,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:49,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:49,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:49,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696706955] [2021-03-11 18:35:49,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:35:49,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 18:35:49,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829240308] [2021-03-11 18:35:49,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 18:35:49,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:49,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 18:35:49,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 18:35:49,909 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:49,910 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:49,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:49,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:49,957 INFO L129 PetriNetUnfolder]: 27/62 cut-off events. [2021-03-11 18:35:49,957 INFO L130 PetriNetUnfolder]: For 119/125 co-relation queries the response was YES. [2021-03-11 18:35:49,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 62 events. 27/62 cut-off events. For 119/125 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 159 event pairs, 0 based on Foata normal form. 8/70 useless extension candidates. Maximal degree in co-relation 245. Up to 38 conditions per place. [2021-03-11 18:35:49,961 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 12 selfloop transitions, 9 changer transitions 0/28 dead transitions. [2021-03-11 18:35:49,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 228 flow [2021-03-11 18:35:49,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 18:35:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 18:35:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 393 transitions. [2021-03-11 18:35:49,963 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6717948717948717 [2021-03-11 18:35:49,963 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 393 transitions. [2021-03-11 18:35:49,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 393 transitions. [2021-03-11 18:35:49,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:49,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 393 transitions. [2021-03-11 18:35:49,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,967 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,967 INFO L185 Difference]: Start difference. First operand has 31 places, 25 transitions, 160 flow. Second operand 5 states and 393 transitions. [2021-03-11 18:35:49,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 228 flow [2021-03-11 18:35:49,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 201 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-11 18:35:49,973 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 170 flow [2021-03-11 18:35:49,973 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-11 18:35:49,973 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 16 predicate places. [2021-03-11 18:35:49,973 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 170 flow [2021-03-11 18:35:49,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:49,974 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:49,974 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:49,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 18:35:49,974 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:49,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:49,976 INFO L82 PathProgramCache]: Analyzing trace with hash 535041493, now seen corresponding path program 2 times [2021-03-11 18:35:49,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:49,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621565566] [2021-03-11 18:35:49,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:50,045 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:50,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,055 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-11 18:35:50,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:50,066 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:50,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:50,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621565566] [2021-03-11 18:35:50,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:35:50,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 18:35:50,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885014997] [2021-03-11 18:35:50,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 18:35:50,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:50,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 18:35:50,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 18:35:50,076 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:50,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:50,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:50,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:50,140 INFO L129 PetriNetUnfolder]: 31/72 cut-off events. [2021-03-11 18:35:50,140 INFO L130 PetriNetUnfolder]: For 171/177 co-relation queries the response was YES. [2021-03-11 18:35:50,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 72 events. 31/72 cut-off events. For 171/177 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 203 event pairs, 0 based on Foata normal form. 8/80 useless extension candidates. Maximal degree in co-relation 287. Up to 41 conditions per place. [2021-03-11 18:35:50,141 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 12 selfloop transitions, 16 changer transitions 0/35 dead transitions. [2021-03-11 18:35:50,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 293 flow [2021-03-11 18:35:50,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 18:35:50,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 18:35:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 551 transitions. [2021-03-11 18:35:50,143 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6727716727716728 [2021-03-11 18:35:50,143 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 551 transitions. [2021-03-11 18:35:50,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 551 transitions. [2021-03-11 18:35:50,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:50,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 551 transitions. [2021-03-11 18:35:50,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.71428571428571) internal successors, (551), 7 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,147 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,148 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 170 flow. Second operand 7 states and 551 transitions. [2021-03-11 18:35:50,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 293 flow [2021-03-11 18:35:50,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 274 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-11 18:35:50,153 INFO L241 Difference]: Finished difference. Result has 39 places, 33 transitions, 261 flow [2021-03-11 18:35:50,153 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=261, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2021-03-11 18:35:50,153 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 21 predicate places. [2021-03-11 18:35:50,153 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 261 flow [2021-03-11 18:35:50,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,154 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:50,154 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:50,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 18:35:50,154 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:50,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:50,155 INFO L82 PathProgramCache]: Analyzing trace with hash -588882993, now seen corresponding path program 2 times [2021-03-11 18:35:50,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:50,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276124367] [2021-03-11 18:35:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:50,200 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-11 18:35:50,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,206 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-03-11 18:35:50,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:50,219 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-11 18:35:50,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:50,232 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:50,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:50,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276124367] [2021-03-11 18:35:50,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346111860] [2021-03-11 18:35:50,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:50,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:35:50,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:50,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-11 18:35:50,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:50,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:50,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:50,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:50,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:50,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:50,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:50,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:50,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:50,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:50,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:50,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:50,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:50,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:50,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:50,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:50,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:50,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:50,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:50,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:50,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:50,459 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-11 18:35:50,462 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-11 18:35:50,465 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:50,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:50,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:50,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:50,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:50,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:50,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-11 18:35:50,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567612731] [2021-03-11 18:35:50,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 18:35:50,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:50,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 18:35:50,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-11 18:35:50,489 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:50,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 261 flow. Second operand has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:50,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:50,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:50,621 INFO L129 PetriNetUnfolder]: 42/100 cut-off events. [2021-03-11 18:35:50,621 INFO L130 PetriNetUnfolder]: For 351/357 co-relation queries the response was YES. [2021-03-11 18:35:50,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 100 events. 42/100 cut-off events. For 351/357 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 328 event pairs, 0 based on Foata normal form. 9/109 useless extension candidates. Maximal degree in co-relation 487. Up to 53 conditions per place. [2021-03-11 18:35:50,624 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 13 selfloop transitions, 29 changer transitions 0/49 dead transitions. [2021-03-11 18:35:50,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 49 transitions, 509 flow [2021-03-11 18:35:50,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 18:35:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 18:35:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 866 transitions. [2021-03-11 18:35:50,626 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6728826728826729 [2021-03-11 18:35:50,626 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 866 transitions. [2021-03-11 18:35:50,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 866 transitions. [2021-03-11 18:35:50,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:50,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 866 transitions. [2021-03-11 18:35:50,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.72727272727273) internal successors, (866), 11 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,631 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,631 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 261 flow. Second operand 11 states and 866 transitions. [2021-03-11 18:35:50,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 49 transitions, 509 flow [2021-03-11 18:35:50,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 474 flow, removed 14 selfloop flow, removed 2 redundant places. [2021-03-11 18:35:50,635 INFO L241 Difference]: Finished difference. Result has 50 places, 49 transitions, 478 flow [2021-03-11 18:35:50,635 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=478, PETRI_PLACES=50, PETRI_TRANSITIONS=49} [2021-03-11 18:35:50,635 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 32 predicate places. [2021-03-11 18:35:50,635 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 478 flow [2021-03-11 18:35:50,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:50,636 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:50,636 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:50,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:50,855 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:50,856 INFO L82 PathProgramCache]: Analyzing trace with hash -602260392, now seen corresponding path program 3 times [2021-03-11 18:35:50,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:50,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431853051] [2021-03-11 18:35:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:50,898 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:50,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,905 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-11 18:35:50,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:50,913 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:35:50,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:50,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:50,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:50,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431853051] [2021-03-11 18:35:50,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621339451] [2021-03-11 18:35:50,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:50,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-11 18:35:50,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:50,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-11 18:35:50,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:50,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:51,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:51,052 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-11 18:35:51,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:51,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:51,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:51,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:51,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:51,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:51,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:51,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:51,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:51,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:51,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:51,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:51,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:51,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:51,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:51,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:51,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,114 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:51,117 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:51,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:51,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:51,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-11 18:35:51,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175412528] [2021-03-11 18:35:51,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 18:35:51,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:51,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 18:35:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-11 18:35:51,132 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:51,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 478 flow. Second operand has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:51,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:51,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:51,178 INFO L129 PetriNetUnfolder]: 44/106 cut-off events. [2021-03-11 18:35:51,178 INFO L130 PetriNetUnfolder]: For 530/536 co-relation queries the response was YES. [2021-03-11 18:35:51,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 106 events. 44/106 cut-off events. For 530/536 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 369 event pairs, 0 based on Foata normal form. 8/114 useless extension candidates. Maximal degree in co-relation 583. Up to 64 conditions per place. [2021-03-11 18:35:51,183 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 35 selfloop transitions, 14 changer transitions 0/56 dead transitions. [2021-03-11 18:35:51,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 56 transitions, 669 flow [2021-03-11 18:35:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 18:35:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 18:35:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 471 transitions. [2021-03-11 18:35:51,186 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6709401709401709 [2021-03-11 18:35:51,186 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 471 transitions. [2021-03-11 18:35:51,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 471 transitions. [2021-03-11 18:35:51,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:51,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 471 transitions. [2021-03-11 18:35:51,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,193 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,193 INFO L185 Difference]: Start difference. First operand has 50 places, 49 transitions, 478 flow. Second operand 6 states and 471 transitions. [2021-03-11 18:35:51,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 56 transitions, 669 flow [2021-03-11 18:35:51,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 512 flow, removed 66 selfloop flow, removed 6 redundant places. [2021-03-11 18:35:51,199 INFO L241 Difference]: Finished difference. Result has 51 places, 51 transitions, 424 flow [2021-03-11 18:35:51,199 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=424, PETRI_PLACES=51, PETRI_TRANSITIONS=51} [2021-03-11 18:35:51,200 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 33 predicate places. [2021-03-11 18:35:51,200 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 51 transitions, 424 flow [2021-03-11 18:35:51,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,200 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:51,200 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:51,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:51,415 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:51,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:51,416 INFO L82 PathProgramCache]: Analyzing trace with hash -593582562, now seen corresponding path program 4 times [2021-03-11 18:35:51,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:51,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416741885] [2021-03-11 18:35:51,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:51,458 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:51,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,466 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:51,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:51,472 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:35:51,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:51,481 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:51,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:51,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416741885] [2021-03-11 18:35:51,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529413063] [2021-03-11 18:35:51,488 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:51,557 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-11 18:35:51,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:51,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-11 18:35:51,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:51,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:51,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:51,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:51,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:51,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:51,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:51,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:51,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:51,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:51,612 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-11 18:35:51,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:51,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:51,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:51,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:51,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:51,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:51,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:51,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:51,662 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:51,662 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:51,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:51,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:51,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-11 18:35:51,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047041834] [2021-03-11 18:35:51,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 18:35:51,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:51,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 18:35:51,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-03-11 18:35:51,673 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:51,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 51 transitions, 424 flow. Second operand has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:51,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:51,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:51,755 INFO L129 PetriNetUnfolder]: 46/111 cut-off events. [2021-03-11 18:35:51,755 INFO L130 PetriNetUnfolder]: For 500/506 co-relation queries the response was YES. [2021-03-11 18:35:51,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 111 events. 46/111 cut-off events. For 500/506 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 394 event pairs, 0 based on Foata normal form. 8/119 useless extension candidates. Maximal degree in co-relation 528. Up to 61 conditions per place. [2021-03-11 18:35:51,758 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 29 selfloop transitions, 21 changer transitions 0/57 dead transitions. [2021-03-11 18:35:51,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 572 flow [2021-03-11 18:35:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 18:35:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 18:35:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 550 transitions. [2021-03-11 18:35:51,760 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6715506715506715 [2021-03-11 18:35:51,760 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 550 transitions. [2021-03-11 18:35:51,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 550 transitions. [2021-03-11 18:35:51,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:51,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 550 transitions. [2021-03-11 18:35:51,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.57142857142857) internal successors, (550), 7 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,765 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,765 INFO L185 Difference]: Start difference. First operand has 51 places, 51 transitions, 424 flow. Second operand 7 states and 550 transitions. [2021-03-11 18:35:51,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 572 flow [2021-03-11 18:35:51,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-11 18:35:51,769 INFO L241 Difference]: Finished difference. Result has 55 places, 52 transitions, 479 flow [2021-03-11 18:35:51,769 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=479, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2021-03-11 18:35:51,769 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 37 predicate places. [2021-03-11 18:35:51,770 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 479 flow [2021-03-11 18:35:51,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:51,770 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:51,770 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:51,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:51,991 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:51,992 INFO L82 PathProgramCache]: Analyzing trace with hash -593562102, now seen corresponding path program 5 times [2021-03-11 18:35:51,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:51,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379533562] [2021-03-11 18:35:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:52,032 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:52,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,037 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,044 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:35:52,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:52,051 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:52,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:52,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379533562] [2021-03-11 18:35:52,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178312443] [2021-03-11 18:35:52,057 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:52,108 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:35:52,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:52,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-11 18:35:52,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:52,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:52,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:52,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:52,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:52,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:52,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:52,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:52,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:52,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:52,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:52,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:52,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:52,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:52,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:52,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:52,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:52,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:35:52,184 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-11 18:35:52,185 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:52,185 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:52,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:52,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:52,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-11 18:35:52,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306979032] [2021-03-11 18:35:52,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 18:35:52,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:52,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 18:35:52,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-03-11 18:35:52,192 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:52,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 479 flow. Second operand has 9 states, 9 states have (on average 77.0) internal successors, (693), 9 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:52,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:52,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:52,278 INFO L129 PetriNetUnfolder]: 50/121 cut-off events. [2021-03-11 18:35:52,278 INFO L130 PetriNetUnfolder]: For 640/646 co-relation queries the response was YES. [2021-03-11 18:35:52,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 121 events. 50/121 cut-off events. For 640/646 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 449 event pairs, 0 based on Foata normal form. 8/129 useless extension candidates. Maximal degree in co-relation 614. Up to 64 conditions per place. [2021-03-11 18:35:52,279 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 29 selfloop transitions, 29 changer transitions 0/65 dead transitions. [2021-03-11 18:35:52,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 733 flow [2021-03-11 18:35:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 18:35:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 18:35:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 708 transitions. [2021-03-11 18:35:52,282 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6723646723646723 [2021-03-11 18:35:52,282 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:52,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.66666666666667) internal successors, (708), 9 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,286 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,286 INFO L185 Difference]: Start difference. First operand has 55 places, 52 transitions, 479 flow. Second operand 9 states and 708 transitions. [2021-03-11 18:35:52,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 733 flow [2021-03-11 18:35:52,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 681 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-11 18:35:52,292 INFO L241 Difference]: Finished difference. Result has 60 places, 60 transitions, 623 flow [2021-03-11 18:35:52,293 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=623, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2021-03-11 18:35:52,293 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 42 predicate places. [2021-03-11 18:35:52,293 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 623 flow [2021-03-11 18:35:52,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 77.0) internal successors, (693), 9 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,293 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:52,293 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:52,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:52,507 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:52,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1054611781, now seen corresponding path program 1 times [2021-03-11 18:35:52,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:52,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748103567] [2021-03-11 18:35:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:52,544 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:52,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,549 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:35:52,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,556 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-03-11 18:35:52,556 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-03-11 18:35:52,570 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:52,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:52,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748103567] [2021-03-11 18:35:52,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:35:52,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 18:35:52,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104558488] [2021-03-11 18:35:52,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 18:35:52,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:52,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 18:35:52,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 18:35:52,578 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:52,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 623 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:52,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:52,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:52,626 INFO L129 PetriNetUnfolder]: 51/123 cut-off events. [2021-03-11 18:35:52,626 INFO L130 PetriNetUnfolder]: For 742/748 co-relation queries the response was YES. [2021-03-11 18:35:52,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 123 events. 51/123 cut-off events. For 742/748 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 464 event pairs, 0 based on Foata normal form. 7/130 useless extension candidates. Maximal degree in co-relation 684. Up to 71 conditions per place. [2021-03-11 18:35:52,628 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 37 selfloop transitions, 21 changer transitions 0/65 dead transitions. [2021-03-11 18:35:52,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 785 flow [2021-03-11 18:35:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 18:35:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 18:35:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 550 transitions. [2021-03-11 18:35:52,629 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6715506715506715 [2021-03-11 18:35:52,630 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 550 transitions. [2021-03-11 18:35:52,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 550 transitions. [2021-03-11 18:35:52,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:52,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 550 transitions. [2021-03-11 18:35:52,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.57142857142857) internal successors, (550), 7 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,633 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,633 INFO L185 Difference]: Start difference. First operand has 60 places, 60 transitions, 623 flow. Second operand 7 states and 550 transitions. [2021-03-11 18:35:52,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 785 flow [2021-03-11 18:35:52,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 710 flow, removed 29 selfloop flow, removed 4 redundant places. [2021-03-11 18:35:52,638 INFO L241 Difference]: Finished difference. Result has 63 places, 61 transitions, 621 flow [2021-03-11 18:35:52,639 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=621, PETRI_PLACES=63, PETRI_TRANSITIONS=61} [2021-03-11 18:35:52,639 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 45 predicate places. [2021-03-11 18:35:52,639 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 621 flow [2021-03-11 18:35:52,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,639 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:52,639 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:52,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 18:35:52,639 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:52,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1054891711, now seen corresponding path program 2 times [2021-03-11 18:35:52,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:52,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683867526] [2021-03-11 18:35:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:52,663 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:52,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,668 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:35:52,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,679 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-11 18:35:52,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:52,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:52,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683867526] [2021-03-11 18:35:52,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:35:52,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 18:35:52,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46742458] [2021-03-11 18:35:52,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 18:35:52,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:52,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 18:35:52,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 18:35:52,695 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:52,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 621 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:52,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:52,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:52,772 INFO L129 PetriNetUnfolder]: 58/140 cut-off events. [2021-03-11 18:35:52,773 INFO L130 PetriNetUnfolder]: For 1045/1051 co-relation queries the response was YES. [2021-03-11 18:35:52,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 140 events. 58/140 cut-off events. For 1045/1051 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 577 event pairs, 0 based on Foata normal form. 8/148 useless extension candidates. Maximal degree in co-relation 786. Up to 70 conditions per place. [2021-03-11 18:35:52,774 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 24 selfloop transitions, 42 changer transitions 0/73 dead transitions. [2021-03-11 18:35:52,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 73 transitions, 906 flow [2021-03-11 18:35:52,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 18:35:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 18:35:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 708 transitions. [2021-03-11 18:35:52,777 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6723646723646723 [2021-03-11 18:35:52,777 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:52,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.66666666666667) internal successors, (708), 9 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,781 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,781 INFO L185 Difference]: Start difference. First operand has 63 places, 61 transitions, 621 flow. Second operand 9 states and 708 transitions. [2021-03-11 18:35:52,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 73 transitions, 906 flow [2021-03-11 18:35:52,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 867 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-11 18:35:52,786 INFO L241 Difference]: Finished difference. Result has 68 places, 70 transitions, 853 flow [2021-03-11 18:35:52,787 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=853, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2021-03-11 18:35:52,787 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 50 predicate places. [2021-03-11 18:35:52,787 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 853 flow [2021-03-11 18:35:52,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,787 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:52,787 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:52,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 18:35:52,788 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:52,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1220771585, now seen corresponding path program 3 times [2021-03-11 18:35:52,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:52,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951971317] [2021-03-11 18:35:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:52,807 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:52,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,813 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:52,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:52,819 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-11 18:35:52,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,826 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:52,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:52,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951971317] [2021-03-11 18:35:52,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:35:52,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 18:35:52,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816389343] [2021-03-11 18:35:52,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 18:35:52,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:52,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 18:35:52,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 18:35:52,833 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:52,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 853 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:52,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:52,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:52,920 INFO L129 PetriNetUnfolder]: 64/156 cut-off events. [2021-03-11 18:35:52,920 INFO L130 PetriNetUnfolder]: For 1469/1475 co-relation queries the response was YES. [2021-03-11 18:35:52,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1041 conditions, 156 events. 64/156 cut-off events. For 1469/1475 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 677 event pairs, 0 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 1008. Up to 78 conditions per place. [2021-03-11 18:35:52,923 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 30 selfloop transitions, 45 changer transitions 0/82 dead transitions. [2021-03-11 18:35:52,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 82 transitions, 1183 flow [2021-03-11 18:35:52,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 18:35:52,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 18:35:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 708 transitions. [2021-03-11 18:35:52,925 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6723646723646723 [2021-03-11 18:35:52,925 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:52,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 708 transitions. [2021-03-11 18:35:52,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.66666666666667) internal successors, (708), 9 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,929 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,929 INFO L185 Difference]: Start difference. First operand has 68 places, 70 transitions, 853 flow. Second operand 9 states and 708 transitions. [2021-03-11 18:35:52,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 82 transitions, 1183 flow [2021-03-11 18:35:52,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 82 transitions, 1128 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-11 18:35:52,937 INFO L241 Difference]: Finished difference. Result has 74 places, 78 transitions, 1087 flow [2021-03-11 18:35:52,937 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1087, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2021-03-11 18:35:52,938 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 56 predicate places. [2021-03-11 18:35:52,938 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 1087 flow [2021-03-11 18:35:52,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:52,938 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:52,938 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:52,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 18:35:52,938 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:52,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1490202629, now seen corresponding path program 6 times [2021-03-11 18:35:52,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:52,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952768819] [2021-03-11 18:35:52,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:52,976 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:52,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:52,981 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-11 18:35:52,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:52,988 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:35:52,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:53,001 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:35:53,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:53,011 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:53,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:53,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952768819] [2021-03-11 18:35:53,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347892143] [2021-03-11 18:35:53,022 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:53,077 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-11 18:35:53,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:53,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:53,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:53,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:53,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:53,100 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-11 18:35:53,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:53,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:53,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:53,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:53,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:53,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:53,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:53,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:53,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:53,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:53,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:53,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:53,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:53,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:53,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:53,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:53,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:53,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:53,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:53,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:53,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,162 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:53,163 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:53,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:53,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:53,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-11 18:35:53,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975519709] [2021-03-11 18:35:53,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 18:35:53,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:53,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 18:35:53,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-11 18:35:53,181 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:53,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 1087 flow. Second operand has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:53,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:53,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:53,227 INFO L129 PetriNetUnfolder]: 66/161 cut-off events. [2021-03-11 18:35:53,227 INFO L130 PetriNetUnfolder]: For 1840/1846 co-relation queries the response was YES. [2021-03-11 18:35:53,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 161 events. 66/161 cut-off events. For 1840/1846 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 700 event pairs, 0 based on Foata normal form. 8/169 useless extension candidates. Maximal degree in co-relation 1162. Up to 101 conditions per place. [2021-03-11 18:35:53,229 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 61 selfloop transitions, 18 changer transitions 0/86 dead transitions. [2021-03-11 18:35:53,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 86 transitions, 1356 flow [2021-03-11 18:35:53,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 18:35:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 18:35:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 549 transitions. [2021-03-11 18:35:53,231 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6703296703296703 [2021-03-11 18:35:53,231 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 549 transitions. [2021-03-11 18:35:53,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 549 transitions. [2021-03-11 18:35:53,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:53,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 549 transitions. [2021-03-11 18:35:53,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,235 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,235 INFO L185 Difference]: Start difference. First operand has 74 places, 78 transitions, 1087 flow. Second operand 7 states and 549 transitions. [2021-03-11 18:35:53,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 86 transitions, 1356 flow [2021-03-11 18:35:53,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 86 transitions, 1277 flow, removed 31 selfloop flow, removed 4 redundant places. [2021-03-11 18:35:53,249 INFO L241 Difference]: Finished difference. Result has 78 places, 80 transitions, 1111 flow [2021-03-11 18:35:53,249 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1111, PETRI_PLACES=78, PETRI_TRANSITIONS=80} [2021-03-11 18:35:53,249 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 60 predicate places. [2021-03-11 18:35:53,249 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 80 transitions, 1111 flow [2021-03-11 18:35:53,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,250 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:53,250 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:53,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-11 18:35:53,466 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:53,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1220535179, now seen corresponding path program 7 times [2021-03-11 18:35:53,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:53,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339335838] [2021-03-11 18:35:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:53,498 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:53,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,504 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:53,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:53,510 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:35:53,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,518 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-11 18:35:53,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:53,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:53,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:53,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339335838] [2021-03-11 18:35:53,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098560140] [2021-03-11 18:35:53,541 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:53,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:53,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:53,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:53,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:53,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:53,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:53,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:53,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:53,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:53,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:53,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:53,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:53,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:35:53,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:53,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:35:53,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:53,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:53,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:53,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:53,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:53,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:35:53,727 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-11 18:35:53,728 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:53,729 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:53,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:53,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:53,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-11 18:35:53,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671553588] [2021-03-11 18:35:53,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 18:35:53,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:53,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 18:35:53,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-03-11 18:35:53,743 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:53,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 80 transitions, 1111 flow. Second operand has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:53,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:53,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:53,901 INFO L129 PetriNetUnfolder]: 74/182 cut-off events. [2021-03-11 18:35:53,901 INFO L130 PetriNetUnfolder]: For 2020/2026 co-relation queries the response was YES. [2021-03-11 18:35:53,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 182 events. 74/182 cut-off events. For 2020/2026 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 810 event pairs, 0 based on Foata normal form. 10/192 useless extension candidates. Maximal degree in co-relation 1283. Up to 91 conditions per place. [2021-03-11 18:35:53,903 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 47 selfloop transitions, 46 changer transitions 0/100 dead transitions. [2021-03-11 18:35:53,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 100 transitions, 1637 flow [2021-03-11 18:35:53,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 18:35:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 18:35:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1102 transitions. [2021-03-11 18:35:53,906 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6727716727716728 [2021-03-11 18:35:53,906 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1102 transitions. [2021-03-11 18:35:53,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1102 transitions. [2021-03-11 18:35:53,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:53,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1102 transitions. [2021-03-11 18:35:53,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.71428571428571) internal successors, (1102), 14 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 117.0) internal successors, (1755), 15 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,913 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 117.0) internal successors, (1755), 15 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,913 INFO L185 Difference]: Start difference. First operand has 78 places, 80 transitions, 1111 flow. Second operand 14 states and 1102 transitions. [2021-03-11 18:35:53,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 100 transitions, 1637 flow [2021-03-11 18:35:53,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 100 transitions, 1563 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-11 18:35:53,925 INFO L241 Difference]: Finished difference. Result has 91 places, 95 transitions, 1475 flow [2021-03-11 18:35:53,926 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1475, PETRI_PLACES=91, PETRI_TRANSITIONS=95} [2021-03-11 18:35:53,926 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 73 predicate places. [2021-03-11 18:35:53,926 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 95 transitions, 1475 flow [2021-03-11 18:35:53,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:53,926 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:53,926 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:54,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:54,139 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:54,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:54,139 INFO L82 PathProgramCache]: Analyzing trace with hash 590295028, now seen corresponding path program 4 times [2021-03-11 18:35:54,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:54,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902813049] [2021-03-11 18:35:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:54,177 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:54,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,183 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:35:54,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,192 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-03-11 18:35:54,192 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-03-11 18:35:54,207 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-11 18:35:54,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:54,215 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:54,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:54,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902813049] [2021-03-11 18:35:54,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654946445] [2021-03-11 18:35:54,222 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:54,286 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-11 18:35:54,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:54,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:54,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:54,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:54,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:54,329 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-11 18:35:54,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:35:54,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:35:54,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:54,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:54,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:54,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:54,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:54,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:54,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,373 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:54,373 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:54,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:54,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:54,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-11 18:35:54,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642878788] [2021-03-11 18:35:54,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 18:35:54,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:54,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 18:35:54,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-11 18:35:54,381 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:54,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 95 transitions, 1475 flow. Second operand has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:54,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:54,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:54,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:54,484 INFO L129 PetriNetUnfolder]: 75/185 cut-off events. [2021-03-11 18:35:54,484 INFO L130 PetriNetUnfolder]: For 1938/1944 co-relation queries the response was YES. [2021-03-11 18:35:54,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1361 conditions, 185 events. 75/185 cut-off events. For 1938/1944 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 827 event pairs, 0 based on Foata normal form. 7/192 useless extension candidates. Maximal degree in co-relation 1318. Up to 106 conditions per place. [2021-03-11 18:35:54,487 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 67 selfloop transitions, 30 changer transitions 0/104 dead transitions. [2021-03-11 18:35:54,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 1780 flow [2021-03-11 18:35:54,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 18:35:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 18:35:54,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 784 transitions. [2021-03-11 18:35:54,490 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67008547008547 [2021-03-11 18:35:54,490 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 784 transitions. [2021-03-11 18:35:54,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 784 transitions. [2021-03-11 18:35:54,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:54,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 784 transitions. [2021-03-11 18:35:54,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.4) internal successors, (784), 10 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:54,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:54,495 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:54,495 INFO L185 Difference]: Start difference. First operand has 91 places, 95 transitions, 1475 flow. Second operand 10 states and 784 transitions. [2021-03-11 18:35:54,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 1780 flow [2021-03-11 18:35:54,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 104 transitions, 1523 flow, removed 103 selfloop flow, removed 8 redundant places. [2021-03-11 18:35:54,507 INFO L241 Difference]: Finished difference. Result has 95 places, 99 transitions, 1380 flow [2021-03-11 18:35:54,507 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1227, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1380, PETRI_PLACES=95, PETRI_TRANSITIONS=99} [2021-03-11 18:35:54,507 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 77 predicate places. [2021-03-11 18:35:54,507 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 99 transitions, 1380 flow [2021-03-11 18:35:54,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:54,507 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:54,508 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:54,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-03-11 18:35:54,727 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:54,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:54,727 INFO L82 PathProgramCache]: Analyzing trace with hash 567993598, now seen corresponding path program 5 times [2021-03-11 18:35:54,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:54,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062328422] [2021-03-11 18:35:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:54,762 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:54,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,766 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:54,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,773 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-11 18:35:54,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,780 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 18:35:54,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:54,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:54,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:54,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062328422] [2021-03-11 18:35:54,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100273898] [2021-03-11 18:35:54,800 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:54,851 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:35:54,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:54,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:54,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:54,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:54,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:54,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:54,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:54,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:54,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:54,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:54,909 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-11 18:35:54,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:35:54,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:35:54,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:54,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:54,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:54,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:54,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:54,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:54,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:54,948 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:54,952 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:54,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:54,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:54,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-11 18:35:54,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653542163] [2021-03-11 18:35:54,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 18:35:54,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:54,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 18:35:54,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-03-11 18:35:54,960 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:54,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 99 transitions, 1380 flow. Second operand has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:54,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:54,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:54,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:55,047 INFO L129 PetriNetUnfolder]: 77/190 cut-off events. [2021-03-11 18:35:55,047 INFO L130 PetriNetUnfolder]: For 2098/2104 co-relation queries the response was YES. [2021-03-11 18:35:55,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 190 events. 77/190 cut-off events. For 2098/2104 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 862 event pairs, 0 based on Foata normal form. 7/197 useless extension candidates. Maximal degree in co-relation 1278. Up to 107 conditions per place. [2021-03-11 18:35:55,050 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 65 selfloop transitions, 34 changer transitions 0/106 dead transitions. [2021-03-11 18:35:55,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 106 transitions, 1677 flow [2021-03-11 18:35:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 18:35:55,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 18:35:55,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 707 transitions. [2021-03-11 18:35:55,051 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.671415004748338 [2021-03-11 18:35:55,052 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 707 transitions. [2021-03-11 18:35:55,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 707 transitions. [2021-03-11 18:35:55,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:55,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 707 transitions. [2021-03-11 18:35:55,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.55555555555556) internal successors, (707), 9 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,055 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,055 INFO L185 Difference]: Start difference. First operand has 95 places, 99 transitions, 1380 flow. Second operand 9 states and 707 transitions. [2021-03-11 18:35:55,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 106 transitions, 1677 flow [2021-03-11 18:35:55,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 106 transitions, 1635 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-11 18:35:55,066 INFO L241 Difference]: Finished difference. Result has 99 places, 101 transitions, 1486 flow [2021-03-11 18:35:55,067 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1339, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1486, PETRI_PLACES=99, PETRI_TRANSITIONS=101} [2021-03-11 18:35:55,067 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 81 predicate places. [2021-03-11 18:35:55,067 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 101 transitions, 1486 flow [2021-03-11 18:35:55,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,067 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:55,067 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:55,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-03-11 18:35:55,281 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:55,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:55,281 INFO L82 PathProgramCache]: Analyzing trace with hash 568273528, now seen corresponding path program 6 times [2021-03-11 18:35:55,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:55,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960304488] [2021-03-11 18:35:55,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:55,319 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:55,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,324 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:55,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:55,330 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-11 18:35:55,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 18:35:55,341 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:35:55,354 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:55,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:55,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960304488] [2021-03-11 18:35:55,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867045007] [2021-03-11 18:35:55,361 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:55,417 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-11 18:35:55,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:55,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:55,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:55,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:55,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:55,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:55,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:55,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:55,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:55,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:55,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:55,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:55,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:55,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:55,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,512 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-11 18:35:55,513 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-11 18:35:55,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 18:35:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 18:35:55,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 18:35:55,531 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-11 18:35:55,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,535 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:35:55,536 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,539 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-03-11 18:35:55,540 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-03-11 18:35:55,541 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:35:55,542 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:55,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:55,543 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-03-11 18:35:55,570 INFO L147 QuantifierPusher]: treesize reduction 370, result has 57.9 percent of original size 508 [2021-03-11 18:35:55,576 INFO L147 QuantifierPusher]: treesize reduction 370, result has 57.9 percent of original size 508 [2021-03-11 18:35:55,580 INFO L142 QuantifierPusher]: treesize reduction 370, result has 57.9 percent of original size [2021-03-11 18:35:55,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 508 [2021-03-11 18:35:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:55,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:55,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-11 18:35:55,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958813282] [2021-03-11 18:35:55,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 18:35:55,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:55,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 18:35:55,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-03-11 18:35:55,660 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:55,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 101 transitions, 1486 flow. Second operand has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:55,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:55,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:55,886 INFO L129 PetriNetUnfolder]: 93/233 cut-off events. [2021-03-11 18:35:55,886 INFO L130 PetriNetUnfolder]: For 3556/3562 co-relation queries the response was YES. [2021-03-11 18:35:55,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 233 events. 93/233 cut-off events. For 3556/3562 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1160 event pairs, 0 based on Foata normal form. 11/244 useless extension candidates. Maximal degree in co-relation 1675. Up to 107 conditions per place. [2021-03-11 18:35:55,889 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 26 selfloop transitions, 96 changer transitions 0/129 dead transitions. [2021-03-11 18:35:55,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 129 transitions, 2285 flow [2021-03-11 18:35:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 18:35:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 18:35:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1181 transitions. [2021-03-11 18:35:55,891 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.672934472934473 [2021-03-11 18:35:55,891 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1181 transitions. [2021-03-11 18:35:55,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1181 transitions. [2021-03-11 18:35:55,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:55,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1181 transitions. [2021-03-11 18:35:55,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.73333333333333) internal successors, (1181), 15 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,897 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,897 INFO L185 Difference]: Start difference. First operand has 99 places, 101 transitions, 1486 flow. Second operand 15 states and 1181 transitions. [2021-03-11 18:35:55,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 129 transitions, 2285 flow [2021-03-11 18:35:55,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 129 transitions, 2233 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-03-11 18:35:55,912 INFO L241 Difference]: Finished difference. Result has 111 places, 126 transitions, 2266 flow [2021-03-11 18:35:55,912 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1439, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2266, PETRI_PLACES=111, PETRI_TRANSITIONS=126} [2021-03-11 18:35:55,912 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 93 predicate places. [2021-03-11 18:35:55,912 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 126 transitions, 2266 flow [2021-03-11 18:35:55,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:55,913 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:55,913 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:56,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-03-11 18:35:56,131 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:56,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:56,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1500507915, now seen corresponding path program 3 times [2021-03-11 18:35:56,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:56,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862364557] [2021-03-11 18:35:56,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:56,158 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-11 18:35:56,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,163 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-03-11 18:35:56,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:56,169 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-11 18:35:56,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,176 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-03-11 18:35:56,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,184 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-03-11 18:35:56,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:56,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:56,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:56,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862364557] [2021-03-11 18:35:56,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221810348] [2021-03-11 18:35:56,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:56,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-11 18:35:56,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:56,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:35:56,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:56,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:56,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:56,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:56,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:56,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:56,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:56,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:56,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:56,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:56,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:35:56,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:56,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:35:56,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:56,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:35:56,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:56,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:35:56,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:56,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:56,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:56,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:56,377 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-11 18:35:56,377 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-11 18:35:56,378 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:56,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:56,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:56,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:56,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-03-11 18:35:56,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807962516] [2021-03-11 18:35:56,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 18:35:56,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:56,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 18:35:56,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-03-11 18:35:56,401 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:56,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 126 transitions, 2266 flow. Second operand has 14 states, 14 states have (on average 77.0) internal successors, (1078), 14 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:56,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:56,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:56,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:56,582 INFO L129 PetriNetUnfolder]: 108/274 cut-off events. [2021-03-11 18:35:56,582 INFO L130 PetriNetUnfolder]: For 4715/4721 co-relation queries the response was YES. [2021-03-11 18:35:56,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 274 events. 108/274 cut-off events. For 4715/4721 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1445 event pairs, 0 based on Foata normal form. 9/283 useless extension candidates. Maximal degree in co-relation 2162. Up to 159 conditions per place. [2021-03-11 18:35:56,586 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 86 selfloop transitions, 55 changer transitions 0/148 dead transitions. [2021-03-11 18:35:56,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 148 transitions, 3016 flow [2021-03-11 18:35:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 18:35:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 18:35:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1180 transitions. [2021-03-11 18:35:56,591 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6723646723646723 [2021-03-11 18:35:56,591 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1180 transitions. [2021-03-11 18:35:56,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1180 transitions. [2021-03-11 18:35:56,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:56,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1180 transitions. [2021-03-11 18:35:56,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.66666666666667) internal successors, (1180), 15 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:56,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:56,608 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:56,608 INFO L185 Difference]: Start difference. First operand has 111 places, 126 transitions, 2266 flow. Second operand 15 states and 1180 transitions. [2021-03-11 18:35:56,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 148 transitions, 3016 flow [2021-03-11 18:35:56,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 148 transitions, 2689 flow, removed 149 selfloop flow, removed 6 redundant places. [2021-03-11 18:35:56,630 INFO L241 Difference]: Finished difference. Result has 122 places, 148 transitions, 2560 flow [2021-03-11 18:35:56,630 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1983, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2560, PETRI_PLACES=122, PETRI_TRANSITIONS=148} [2021-03-11 18:35:56,630 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 104 predicate places. [2021-03-11 18:35:56,631 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 148 transitions, 2560 flow [2021-03-11 18:35:56,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 77.0) internal successors, (1078), 14 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:56,631 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:56,631 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:56,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:56,842 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:56,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:56,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1048122690, now seen corresponding path program 7 times [2021-03-11 18:35:56,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:56,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375762057] [2021-03-11 18:35:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:56,871 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:56,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,876 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-11 18:35:56,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:56,883 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:35:56,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:56,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:56,897 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:56,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:56,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375762057] [2021-03-11 18:35:56,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246485852] [2021-03-11 18:35:56,906 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:56,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:56,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:56,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:56,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:56,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:56,983 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-11 18:35:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:56,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:56,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:56,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:56,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:56,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:35:56,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:56,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:56,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:56,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:56,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:57,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:57,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,051 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:57,052 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:57,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:57,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:57,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-11 18:35:57,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19265445] [2021-03-11 18:35:57,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 18:35:57,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:57,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 18:35:57,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-03-11 18:35:57,061 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:57,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 148 transitions, 2560 flow. Second operand has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:57,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:57,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:57,173 INFO L129 PetriNetUnfolder]: 112/286 cut-off events. [2021-03-11 18:35:57,173 INFO L130 PetriNetUnfolder]: For 4153/4159 co-relation queries the response was YES. [2021-03-11 18:35:57,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 286 events. 112/286 cut-off events. For 4153/4159 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1554 event pairs, 0 based on Foata normal form. 7/293 useless extension candidates. Maximal degree in co-relation 2155. Up to 179 conditions per place. [2021-03-11 18:35:57,181 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 130 selfloop transitions, 27 changer transitions 0/164 dead transitions. [2021-03-11 18:35:57,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 164 transitions, 3119 flow [2021-03-11 18:35:57,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 18:35:57,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 18:35:57,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 627 transitions. [2021-03-11 18:35:57,186 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6698717948717948 [2021-03-11 18:35:57,187 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 627 transitions. [2021-03-11 18:35:57,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 627 transitions. [2021-03-11 18:35:57,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:57,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 627 transitions. [2021-03-11 18:35:57,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 78.375) internal successors, (627), 8 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,189 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 117.0) internal successors, (1053), 9 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,189 INFO L185 Difference]: Start difference. First operand has 122 places, 148 transitions, 2560 flow. Second operand 8 states and 627 transitions. [2021-03-11 18:35:57,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 164 transitions, 3119 flow [2021-03-11 18:35:57,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 164 transitions, 2904 flow, removed 85 selfloop flow, removed 8 redundant places. [2021-03-11 18:35:57,215 INFO L241 Difference]: Finished difference. Result has 123 places, 153 transitions, 2558 flow [2021-03-11 18:35:57,215 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=2352, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2558, PETRI_PLACES=123, PETRI_TRANSITIONS=153} [2021-03-11 18:35:57,215 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 105 predicate places. [2021-03-11 18:35:57,216 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 153 transitions, 2558 flow [2021-03-11 18:35:57,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,216 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:57,216 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:57,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-03-11 18:35:57,439 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:57,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:57,440 INFO L82 PathProgramCache]: Analyzing trace with hash 797582728, now seen corresponding path program 8 times [2021-03-11 18:35:57,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:57,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358848002] [2021-03-11 18:35:57,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:57,456 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:57,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,461 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:57,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:57,468 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:35:57,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:57,484 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:57,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:57,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358848002] [2021-03-11 18:35:57,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957961138] [2021-03-11 18:35:57,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:57,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:35:57,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:57,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:57,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:57,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:57,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:57,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:57,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:57,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:57,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:57,591 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-11 18:35:57,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:57,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:57,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:57,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:57,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:57,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:57,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:57,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-11 18:35:57,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349654632] [2021-03-11 18:35:57,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 18:35:57,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:57,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 18:35:57,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-11 18:35:57,638 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:57,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 153 transitions, 2558 flow. Second operand has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:57,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:57,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:57,758 INFO L129 PetriNetUnfolder]: 115/293 cut-off events. [2021-03-11 18:35:57,759 INFO L130 PetriNetUnfolder]: For 4269/4275 co-relation queries the response was YES. [2021-03-11 18:35:57,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 293 events. 115/293 cut-off events. For 4269/4275 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1581 event pairs, 0 based on Foata normal form. 7/300 useless extension candidates. Maximal degree in co-relation 2153. Up to 172 conditions per place. [2021-03-11 18:35:57,763 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 120 selfloop transitions, 41 changer transitions 0/168 dead transitions. [2021-03-11 18:35:57,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 168 transitions, 3079 flow [2021-03-11 18:35:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 18:35:57,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 18:35:57,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 784 transitions. [2021-03-11 18:35:57,764 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67008547008547 [2021-03-11 18:35:57,764 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 784 transitions. [2021-03-11 18:35:57,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 784 transitions. [2021-03-11 18:35:57,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:57,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 784 transitions. [2021-03-11 18:35:57,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.4) internal successors, (784), 10 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,767 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,767 INFO L185 Difference]: Start difference. First operand has 123 places, 153 transitions, 2558 flow. Second operand 10 states and 784 transitions. [2021-03-11 18:35:57,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 168 transitions, 3079 flow [2021-03-11 18:35:57,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 168 transitions, 3050 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-11 18:35:57,796 INFO L241 Difference]: Finished difference. Result has 129 places, 157 transitions, 2731 flow [2021-03-11 18:35:57,797 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=2529, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2731, PETRI_PLACES=129, PETRI_TRANSITIONS=157} [2021-03-11 18:35:57,797 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 111 predicate places. [2021-03-11 18:35:57,797 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 157 transitions, 2731 flow [2021-03-11 18:35:57,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 77.0) internal successors, (847), 11 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:57,797 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:57,798 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:58,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:58,021 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:58,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:58,021 INFO L82 PathProgramCache]: Analyzing trace with hash 810807328, now seen corresponding path program 9 times [2021-03-11 18:35:58,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:58,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396924341] [2021-03-11 18:35:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:58,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:58,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,046 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:58,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,053 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-11 18:35:58,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,060 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 18:35:58,060 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:35:58,073 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:35:58,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:58,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396924341] [2021-03-11 18:35:58,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600870487] [2021-03-11 18:35:58,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:58,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-11 18:35:58,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:58,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-11 18:35:58,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:58,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:58,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:58,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:58,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:35:58,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:58,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:58,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:35:58,208 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-11 18:35:58,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:58,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:58,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-11 18:35:58,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194756722] [2021-03-11 18:35:58,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 18:35:58,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:58,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 18:35:58,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-03-11 18:35:58,218 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:58,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 157 transitions, 2731 flow. Second operand has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:58,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:58,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:58,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:58,480 INFO L129 PetriNetUnfolder]: 140/361 cut-off events. [2021-03-11 18:35:58,481 INFO L130 PetriNetUnfolder]: For 6885/6891 co-relation queries the response was YES. [2021-03-11 18:35:58,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 361 events. 140/361 cut-off events. For 6885/6891 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2105 event pairs, 0 based on Foata normal form. 11/372 useless extension candidates. Maximal degree in co-relation 2746. Up to 160 conditions per place. [2021-03-11 18:35:58,486 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 71 selfloop transitions, 128 changer transitions 0/206 dead transitions. [2021-03-11 18:35:58,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 206 transitions, 4020 flow [2021-03-11 18:35:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 18:35:58,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-11 18:35:58,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1338 transitions. [2021-03-11 18:35:58,488 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6726998491704375 [2021-03-11 18:35:58,488 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1338 transitions. [2021-03-11 18:35:58,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1338 transitions. [2021-03-11 18:35:58,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:58,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1338 transitions. [2021-03-11 18:35:58,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 78.70588235294117) internal successors, (1338), 17 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:58,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 117.0) internal successors, (2106), 18 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:58,492 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 117.0) internal successors, (2106), 18 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:58,492 INFO L185 Difference]: Start difference. First operand has 129 places, 157 transitions, 2731 flow. Second operand 17 states and 1338 transitions. [2021-03-11 18:35:58,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 206 transitions, 4020 flow [2021-03-11 18:35:58,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 206 transitions, 3961 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-11 18:35:58,522 INFO L241 Difference]: Finished difference. Result has 144 places, 195 transitions, 3888 flow [2021-03-11 18:35:58,522 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=2680, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3888, PETRI_PLACES=144, PETRI_TRANSITIONS=195} [2021-03-11 18:35:58,523 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 126 predicate places. [2021-03-11 18:35:58,523 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 195 transitions, 3888 flow [2021-03-11 18:35:58,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:58,523 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:58,523 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:58,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-03-11 18:35:58,745 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:58,746 INFO L82 PathProgramCache]: Analyzing trace with hash -130347545, now seen corresponding path program 10 times [2021-03-11 18:35:58,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:58,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62368022] [2021-03-11 18:35:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:58,770 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:58,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,775 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:35:58,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,781 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-03-11 18:35:58,781 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-03-11 18:35:58,793 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:35:58,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,807 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:58,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:58,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62368022] [2021-03-11 18:35:58,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349064707] [2021-03-11 18:35:58,814 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:58,863 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-11 18:35:58,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:58,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:35:58,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:58,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:58,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:58,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:58,901 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-11 18:35:58,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:35:58,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:35:58,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:58,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:58,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:58,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:58,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:35:58,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:58,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:58,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:58,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:58,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:58,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:58,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:58,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-11 18:35:58,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023183339] [2021-03-11 18:35:58,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 18:35:58,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:58,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 18:35:58,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-03-11 18:35:58,974 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:58,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 195 transitions, 3888 flow. Second operand has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:58,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:58,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:58,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:59,150 INFO L129 PetriNetUnfolder]: 141/363 cut-off events. [2021-03-11 18:35:59,150 INFO L130 PetriNetUnfolder]: For 6698/6704 co-relation queries the response was YES. [2021-03-11 18:35:59,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3103 conditions, 363 events. 141/363 cut-off events. For 6698/6704 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2153 event pairs, 0 based on Foata normal form. 7/370 useless extension candidates. Maximal degree in co-relation 3038. Up to 203 conditions per place. [2021-03-11 18:35:59,156 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 151 selfloop transitions, 55 changer transitions 0/213 dead transitions. [2021-03-11 18:35:59,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 213 transitions, 4562 flow [2021-03-11 18:35:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 18:35:59,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 18:35:59,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 940 transitions. [2021-03-11 18:35:59,158 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-11 18:35:59,158 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 940 transitions. [2021-03-11 18:35:59,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 940 transitions. [2021-03-11 18:35:59,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:59,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 940 transitions. [2021-03-11 18:35:59,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.33333333333333) internal successors, (940), 12 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,161 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,161 INFO L185 Difference]: Start difference. First operand has 144 places, 195 transitions, 3888 flow. Second operand 12 states and 940 transitions. [2021-03-11 18:35:59,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 213 transitions, 4562 flow [2021-03-11 18:35:59,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 213 transitions, 4134 flow, removed 167 selfloop flow, removed 13 redundant places. [2021-03-11 18:35:59,199 INFO L241 Difference]: Finished difference. Result has 145 places, 199 transitions, 3730 flow [2021-03-11 18:35:59,199 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=3482, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3730, PETRI_PLACES=145, PETRI_TRANSITIONS=199} [2021-03-11 18:35:59,199 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 127 predicate places. [2021-03-11 18:35:59,199 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 199 transitions, 3730 flow [2021-03-11 18:35:59,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,200 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:59,200 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:35:59,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:59,423 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:35:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:35:59,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1528543413, now seen corresponding path program 11 times [2021-03-11 18:35:59,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:35:59,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975840933] [2021-03-11 18:35:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:35:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:35:59,448 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:59,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,453 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:35:59,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:59,459 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-11 18:35:59,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:59,466 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 18:35:59,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:35:59,480 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:35:59,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,488 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:35:59,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:59,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975840933] [2021-03-11 18:35:59,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471525986] [2021-03-11 18:35:59,496 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:35:59,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:35:59,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:35:59,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:35:59,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:35:59,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:35:59,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:59,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:59,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:59,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:35:59,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:59,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:59,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:59,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:59,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:59,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:35:59,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:59,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:35:59,604 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-11 18:35:59,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:35:59,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:35:59,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:59,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:59,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:59,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:59,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:35:59,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:59,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:59,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:35:59,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:35:59,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:35:59,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:35:59,652 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:35:59,652 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:35:59,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:35:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:35:59,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:35:59,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-11 18:35:59,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143103920] [2021-03-11 18:35:59,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 18:35:59,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:35:59,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 18:35:59,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-03-11 18:35:59,660 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:35:59,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 199 transitions, 3730 flow. Second operand has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:35:59,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:35:59,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:35:59,769 INFO L129 PetriNetUnfolder]: 143/370 cut-off events. [2021-03-11 18:35:59,769 INFO L130 PetriNetUnfolder]: For 6856/6862 co-relation queries the response was YES. [2021-03-11 18:35:59,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 370 events. 143/370 cut-off events. For 6856/6862 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2175 event pairs, 0 based on Foata normal form. 7/377 useless extension candidates. Maximal degree in co-relation 2990. Up to 212 conditions per place. [2021-03-11 18:35:59,774 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 150 selfloop transitions, 53 changer transitions 0/210 dead transitions. [2021-03-11 18:35:59,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 210 transitions, 4309 flow [2021-03-11 18:35:59,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 18:35:59,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 18:35:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 785 transitions. [2021-03-11 18:35:59,776 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6709401709401709 [2021-03-11 18:35:59,776 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 785 transitions. [2021-03-11 18:35:59,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 785 transitions. [2021-03-11 18:35:59,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:35:59,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 785 transitions. [2021-03-11 18:35:59,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.5) internal successors, (785), 10 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,779 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,779 INFO L185 Difference]: Start difference. First operand has 145 places, 199 transitions, 3730 flow. Second operand 10 states and 785 transitions. [2021-03-11 18:35:59,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 210 transitions, 4309 flow [2021-03-11 18:35:59,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 210 transitions, 4211 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-11 18:35:59,817 INFO L241 Difference]: Finished difference. Result has 147 places, 201 transitions, 3855 flow [2021-03-11 18:35:59,817 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=3633, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3855, PETRI_PLACES=147, PETRI_TRANSITIONS=201} [2021-03-11 18:35:59,817 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 129 predicate places. [2021-03-11 18:35:59,817 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 201 transitions, 3855 flow [2021-03-11 18:35:59,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:35:59,818 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:35:59,818 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:00,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-11 18:36:00,039 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:00,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:00,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1550272863, now seen corresponding path program 12 times [2021-03-11 18:36:00,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:00,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673525211] [2021-03-11 18:36:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:00,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:00,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,068 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:00,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:00,073 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:00,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,080 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-11 18:36:00,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,088 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-11 18:36:00,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,097 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:00,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:00,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673525211] [2021-03-11 18:36:00,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72590410] [2021-03-11 18:36:00,104 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:00,157 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-11 18:36:00,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:00,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:36:00,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:00,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:00,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:00,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:00,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:00,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:00,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:00,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:00,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:00,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:00,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:00,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:00,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:00,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:00,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:00,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:00,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:00,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,238 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-11 18:36:00,238 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-11 18:36:00,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:00,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 18:36:00,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 18:36:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 18:36:00,262 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-11 18:36:00,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,264 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:36:00,265 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,268 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-03-11 18:36:00,269 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-03-11 18:36:00,270 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:36:00,272 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:00,273 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-03-11 18:36:00,293 INFO L147 QuantifierPusher]: treesize reduction 231, result has 69.6 percent of original size 528 [2021-03-11 18:36:00,297 INFO L147 QuantifierPusher]: treesize reduction 231, result has 69.6 percent of original size 528 [2021-03-11 18:36:00,300 INFO L142 QuantifierPusher]: treesize reduction 231, result has 69.6 percent of original size [2021-03-11 18:36:00,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-03-11 18:36:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:00,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:00,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-11 18:36:00,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174367097] [2021-03-11 18:36:00,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 18:36:00,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:00,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 18:36:00,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-11 18:36:00,321 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:00,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 201 transitions, 3855 flow. Second operand has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:00,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:00,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:00,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:00,597 INFO L129 PetriNetUnfolder]: 164/422 cut-off events. [2021-03-11 18:36:00,597 INFO L130 PetriNetUnfolder]: For 9259/9265 co-relation queries the response was YES. [2021-03-11 18:36:00,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3547 conditions, 422 events. 164/422 cut-off events. For 9259/9265 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2599 event pairs, 0 based on Foata normal form. 9/431 useless extension candidates. Maximal degree in co-relation 3483. Up to 198 conditions per place. [2021-03-11 18:36:00,603 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 97 selfloop transitions, 132 changer transitions 0/236 dead transitions. [2021-03-11 18:36:00,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 236 transitions, 5063 flow [2021-03-11 18:36:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 18:36:00,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 18:36:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1180 transitions. [2021-03-11 18:36:00,606 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6723646723646723 [2021-03-11 18:36:00,606 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1180 transitions. [2021-03-11 18:36:00,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1180 transitions. [2021-03-11 18:36:00,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:00,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1180 transitions. [2021-03-11 18:36:00,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.66666666666667) internal successors, (1180), 15 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:00,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:00,610 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:00,610 INFO L185 Difference]: Start difference. First operand has 147 places, 201 transitions, 3855 flow. Second operand 15 states and 1180 transitions. [2021-03-11 18:36:00,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 236 transitions, 5063 flow [2021-03-11 18:36:00,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 236 transitions, 4995 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-11 18:36:00,657 INFO L241 Difference]: Finished difference. Result has 157 places, 231 transitions, 4916 flow [2021-03-11 18:36:00,657 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=3791, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4916, PETRI_PLACES=157, PETRI_TRANSITIONS=231} [2021-03-11 18:36:00,657 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 139 predicate places. [2021-03-11 18:36:00,657 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 231 transitions, 4916 flow [2021-03-11 18:36:00,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:00,657 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:00,657 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:00,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-03-11 18:36:00,871 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:00,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1138941005, now seen corresponding path program 13 times [2021-03-11 18:36:00,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:00,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596285555] [2021-03-11 18:36:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:00,893 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:00,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,898 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:36:00,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:00,904 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-11 18:36:00,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:00,910 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:36:00,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:00,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:00,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:00,925 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:00,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:00,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596285555] [2021-03-11 18:36:00,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149796589] [2021-03-11 18:36:00,948 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:01,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:36:01,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:01,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:01,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:01,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:01,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:01,062 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-11 18:36:01,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:01,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:01,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:01,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:01,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:01,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:01,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:01,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:01,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,102 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:01,103 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:01,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:01,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:01,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-11 18:36:01,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67471797] [2021-03-11 18:36:01,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 18:36:01,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:01,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 18:36:01,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-03-11 18:36:01,109 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:01,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 231 transitions, 4916 flow. Second operand has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:01,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:01,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:01,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:01,288 INFO L129 PetriNetUnfolder]: 167/430 cut-off events. [2021-03-11 18:36:01,288 INFO L130 PetriNetUnfolder]: For 9354/9360 co-relation queries the response was YES. [2021-03-11 18:36:01,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3875 conditions, 430 events. 167/430 cut-off events. For 9354/9360 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2624 event pairs, 0 based on Foata normal form. 7/437 useless extension candidates. Maximal degree in co-relation 3807. Up to 213 conditions per place. [2021-03-11 18:36:01,294 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 147 selfloop transitions, 98 changer transitions 0/252 dead transitions. [2021-03-11 18:36:01,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 252 transitions, 5740 flow [2021-03-11 18:36:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 18:36:01,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 18:36:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1254 transitions. [2021-03-11 18:36:01,296 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6698717948717948 [2021-03-11 18:36:01,296 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1254 transitions. [2021-03-11 18:36:01,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1254 transitions. [2021-03-11 18:36:01,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:01,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1254 transitions. [2021-03-11 18:36:01,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.375) internal successors, (1254), 16 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:01,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:01,300 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:01,300 INFO L185 Difference]: Start difference. First operand has 157 places, 231 transitions, 4916 flow. Second operand 16 states and 1254 transitions. [2021-03-11 18:36:01,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 252 transitions, 5740 flow [2021-03-11 18:36:01,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 252 transitions, 5492 flow, removed 85 selfloop flow, removed 10 redundant places. [2021-03-11 18:36:01,357 INFO L241 Difference]: Finished difference. Result has 164 places, 235 transitions, 5060 flow [2021-03-11 18:36:01,357 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=4684, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5060, PETRI_PLACES=164, PETRI_TRANSITIONS=235} [2021-03-11 18:36:01,357 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 146 predicate places. [2021-03-11 18:36:01,357 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 235 transitions, 5060 flow [2021-03-11 18:36:01,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:01,358 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:01,358 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:01,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:01,581 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:01,581 INFO L82 PathProgramCache]: Analyzing trace with hash 139357105, now seen corresponding path program 14 times [2021-03-11 18:36:01,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:01,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116604743] [2021-03-11 18:36:01,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:01,608 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:01,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,614 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:01,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:01,629 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-11 18:36:01,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,638 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-11 18:36:01,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:01,647 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:01,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:01,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116604743] [2021-03-11 18:36:01,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351706565] [2021-03-11 18:36:01,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:01,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:36:01,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:01,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:36:01,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:01,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:01,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:01,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:01,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:01,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:01,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:01,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:01,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:01,781 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-11 18:36:01,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:01,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:01,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:01,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:01,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:01,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:01,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:01,808 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:01,808 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:01,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:01,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:01,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-11 18:36:01,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774545147] [2021-03-11 18:36:01,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 18:36:01,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:01,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 18:36:01,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-03-11 18:36:01,816 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:01,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 235 transitions, 5060 flow. Second operand has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:01,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:01,817 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:01,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:02,077 INFO L129 PetriNetUnfolder]: 176/453 cut-off events. [2021-03-11 18:36:02,077 INFO L130 PetriNetUnfolder]: For 10437/10443 co-relation queries the response was YES. [2021-03-11 18:36:02,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4151 conditions, 453 events. 176/453 cut-off events. For 10437/10443 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2795 event pairs, 0 based on Foata normal form. 7/460 useless extension candidates. Maximal degree in co-relation 4082. Up to 189 conditions per place. [2021-03-11 18:36:02,084 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 105 selfloop transitions, 149 changer transitions 0/261 dead transitions. [2021-03-11 18:36:02,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 261 transitions, 6091 flow [2021-03-11 18:36:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 18:36:02,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 18:36:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1256 transitions. [2021-03-11 18:36:02,091 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6709401709401709 [2021-03-11 18:36:02,091 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1256 transitions. [2021-03-11 18:36:02,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1256 transitions. [2021-03-11 18:36:02,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:02,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1256 transitions. [2021-03-11 18:36:02,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.5) internal successors, (1256), 16 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:02,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:02,101 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:02,101 INFO L185 Difference]: Start difference. First operand has 164 places, 235 transitions, 5060 flow. Second operand 16 states and 1256 transitions. [2021-03-11 18:36:02,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 261 transitions, 6091 flow [2021-03-11 18:36:02,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 261 transitions, 5938 flow, removed 10 selfloop flow, removed 12 redundant places. [2021-03-11 18:36:02,159 INFO L241 Difference]: Finished difference. Result has 168 places, 245 transitions, 5618 flow [2021-03-11 18:36:02,159 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=4907, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5618, PETRI_PLACES=168, PETRI_TRANSITIONS=245} [2021-03-11 18:36:02,159 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 150 predicate places. [2021-03-11 18:36:02,160 INFO L480 AbstractCegarLoop]: Abstraction has has 168 places, 245 transitions, 5618 flow [2021-03-11 18:36:02,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:02,160 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:02,160 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:02,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-03-11 18:36:02,382 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:02,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:02,383 INFO L82 PathProgramCache]: Analyzing trace with hash 139379487, now seen corresponding path program 15 times [2021-03-11 18:36:02,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:02,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462670660] [2021-03-11 18:36:02,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:02,409 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:02,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,414 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:02,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,420 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-11 18:36:02,421 INFO L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-03-11 18:36:02,432 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-11 18:36:02,432 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-03-11 18:36:02,445 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-11 18:36:02,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:02,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:02,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462670660] [2021-03-11 18:36:02,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421768041] [2021-03-11 18:36:02,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:02,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-11 18:36:02,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:02,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:36:02,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:02,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:02,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:02,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:02,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:02,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:02,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:02,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:02,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:02,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:02,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:02,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:02,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:02,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:02,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:02,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:02,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:02,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:02,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:02,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:02,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:02,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:02,622 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-11 18:36:02,623 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-11 18:36:02,623 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:02,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:02,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:02,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:02,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:02,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:02,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-03-11 18:36:02,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334819119] [2021-03-11 18:36:02,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 18:36:02,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:02,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 18:36:02,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-03-11 18:36:02,664 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:02,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 245 transitions, 5618 flow. Second operand has 14 states, 14 states have (on average 77.0) internal successors, (1078), 14 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:02,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:02,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:02,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:03,060 INFO L129 PetriNetUnfolder]: 213/554 cut-off events. [2021-03-11 18:36:03,060 INFO L130 PetriNetUnfolder]: For 16135/16141 co-relation queries the response was YES. [2021-03-11 18:36:03,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5267 conditions, 554 events. 213/554 cut-off events. For 16135/16141 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3637 event pairs, 0 based on Foata normal form. 11/565 useless extension candidates. Maximal degree in co-relation 5198. Up to 254 conditions per place. [2021-03-11 18:36:03,068 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 66 selfloop transitions, 238 changer transitions 0/311 dead transitions. [2021-03-11 18:36:03,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 311 transitions, 7817 flow [2021-03-11 18:36:03,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-11 18:36:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-03-11 18:36:03,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1809 transitions. [2021-03-11 18:36:03,071 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6722408026755853 [2021-03-11 18:36:03,071 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1809 transitions. [2021-03-11 18:36:03,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1809 transitions. [2021-03-11 18:36:03,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:03,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1809 transitions. [2021-03-11 18:36:03,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 78.65217391304348) internal successors, (1809), 23 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 117.0) internal successors, (2808), 24 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,076 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 117.0) internal successors, (2808), 24 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,076 INFO L185 Difference]: Start difference. First operand has 168 places, 245 transitions, 5618 flow. Second operand 23 states and 1809 transitions. [2021-03-11 18:36:03,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 311 transitions, 7817 flow [2021-03-11 18:36:03,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 311 transitions, 7590 flow, removed 25 selfloop flow, removed 12 redundant places. [2021-03-11 18:36:03,132 INFO L241 Difference]: Finished difference. Result has 183 places, 301 transitions, 7570 flow [2021-03-11 18:36:03,133 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=5407, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7570, PETRI_PLACES=183, PETRI_TRANSITIONS=301} [2021-03-11 18:36:03,133 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 165 predicate places. [2021-03-11 18:36:03,133 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 301 transitions, 7570 flow [2021-03-11 18:36:03,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 77.0) internal successors, (1078), 14 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,133 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:03,133 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:03,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:03,351 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:03,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1860842459, now seen corresponding path program 16 times [2021-03-11 18:36:03,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:03,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708549971] [2021-03-11 18:36:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:03,366 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:03,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,371 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-11 18:36:03,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:03,378 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:36:03,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:03,385 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:03,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:03,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:03,401 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:03,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:03,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708549971] [2021-03-11 18:36:03,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925123003] [2021-03-11 18:36:03,410 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:03,470 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-11 18:36:03,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:03,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:36:03,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:03,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:03,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:03,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:03,498 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-11 18:36:03,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:03,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:03,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:03,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:03,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:03,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:03,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:03,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:03,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:03,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:03,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:03,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:03,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:03,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:03,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:03,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:03,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:03,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:03,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:03,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:03,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:03,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:03,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:03,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:03,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:03,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:03,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,552 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-11 18:36:03,552 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-11 18:36:03,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:03,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:03,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:03,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:03,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:03,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:03,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:03,571 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:03,571 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:03,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:03,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:03,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:03,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-11 18:36:03,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171542633] [2021-03-11 18:36:03,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 18:36:03,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:03,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 18:36:03,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-03-11 18:36:03,580 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:03,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 301 transitions, 7570 flow. Second operand has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:03,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:03,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:03,750 INFO L129 PetriNetUnfolder]: 216/563 cut-off events. [2021-03-11 18:36:03,750 INFO L130 PetriNetUnfolder]: For 14975/14981 co-relation queries the response was YES. [2021-03-11 18:36:03,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5685 conditions, 563 events. 216/563 cut-off events. For 14975/14981 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 3735 event pairs, 0 based on Foata normal form. 7/570 useless extension candidates. Maximal degree in co-relation 5614. Up to 364 conditions per place. [2021-03-11 18:36:03,757 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 279 selfloop transitions, 39 changer transitions 0/325 dead transitions. [2021-03-11 18:36:03,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 325 transitions, 8601 flow [2021-03-11 18:36:03,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 18:36:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 18:36:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 705 transitions. [2021-03-11 18:36:03,759 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-11 18:36:03,759 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 705 transitions. [2021-03-11 18:36:03,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 705 transitions. [2021-03-11 18:36:03,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:03,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 705 transitions. [2021-03-11 18:36:03,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.33333333333333) internal successors, (705), 9 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,762 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,762 INFO L185 Difference]: Start difference. First operand has 183 places, 301 transitions, 7570 flow. Second operand 9 states and 705 transitions. [2021-03-11 18:36:03,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 325 transitions, 8601 flow [2021-03-11 18:36:03,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 325 transitions, 7868 flow, removed 312 selfloop flow, removed 13 redundant places. [2021-03-11 18:36:03,858 INFO L241 Difference]: Finished difference. Result has 181 places, 306 transitions, 7082 flow [2021-03-11 18:36:03,858 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=6870, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7082, PETRI_PLACES=181, PETRI_TRANSITIONS=306} [2021-03-11 18:36:03,858 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 163 predicate places. [2021-03-11 18:36:03,858 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 306 transitions, 7082 flow [2021-03-11 18:36:03,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:03,858 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:03,858 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:04,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-03-11 18:36:04,059 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:04,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1037646689, now seen corresponding path program 17 times [2021-03-11 18:36:04,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:04,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179364576] [2021-03-11 18:36:04,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:04,078 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:04,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,084 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:04,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,089 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:36:04,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:04,096 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:04,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,111 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:04,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:04,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179364576] [2021-03-11 18:36:04,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308857384] [2021-03-11 18:36:04,119 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:04,179 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:36:04,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:04,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:36:04,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:04,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:04,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:04,230 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-11 18:36:04,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:04,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:04,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:04,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:04,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:04,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:04,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:04,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:04,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,266 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-11 18:36:04,267 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-11 18:36:04,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:04,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:04,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:04,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:04,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,285 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:04,285 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:04,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:04,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:04,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-11 18:36:04,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658184840] [2021-03-11 18:36:04,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 18:36:04,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:04,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 18:36:04,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-03-11 18:36:04,292 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:04,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 306 transitions, 7082 flow. Second operand has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:04,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:04,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:04,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:04,498 INFO L129 PetriNetUnfolder]: 219/571 cut-off events. [2021-03-11 18:36:04,498 INFO L130 PetriNetUnfolder]: For 14129/14135 co-relation queries the response was YES. [2021-03-11 18:36:04,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5442 conditions, 571 events. 219/571 cut-off events. For 14129/14135 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3813 event pairs, 0 based on Foata normal form. 7/578 useless extension candidates. Maximal degree in co-relation 5368. Up to 347 conditions per place. [2021-03-11 18:36:04,506 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 258 selfloop transitions, 63 changer transitions 0/328 dead transitions. [2021-03-11 18:36:04,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 328 transitions, 8074 flow [2021-03-11 18:36:04,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 18:36:04,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 18:36:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 940 transitions. [2021-03-11 18:36:04,508 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-11 18:36:04,508 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 940 transitions. [2021-03-11 18:36:04,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 940 transitions. [2021-03-11 18:36:04,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:04,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 940 transitions. [2021-03-11 18:36:04,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.33333333333333) internal successors, (940), 12 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:04,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:04,511 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:04,511 INFO L185 Difference]: Start difference. First operand has 181 places, 306 transitions, 7082 flow. Second operand 12 states and 940 transitions. [2021-03-11 18:36:04,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 328 transitions, 8074 flow [2021-03-11 18:36:04,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 328 transitions, 7956 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-03-11 18:36:04,578 INFO L241 Difference]: Finished difference. Result has 189 places, 311 transitions, 7260 flow [2021-03-11 18:36:04,578 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=6966, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7260, PETRI_PLACES=189, PETRI_TRANSITIONS=311} [2021-03-11 18:36:04,578 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 171 predicate places. [2021-03-11 18:36:04,578 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 311 transitions, 7260 flow [2021-03-11 18:36:04,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:04,578 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:04,578 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:04,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-03-11 18:36:04,779 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:04,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:04,779 INFO L82 PathProgramCache]: Analyzing trace with hash -407806049, now seen corresponding path program 18 times [2021-03-11 18:36:04,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:04,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027512046] [2021-03-11 18:36:04,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:04,792 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:04,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,815 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:04,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,821 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:04,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,828 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:04,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,838 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 18:36:04,839 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:36:04,854 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:04,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:04,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027512046] [2021-03-11 18:36:04,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987432610] [2021-03-11 18:36:04,863 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:04,931 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-11 18:36:04,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:04,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-11 18:36:04,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:04,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:04,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:04,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:04,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:04,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:04,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:04,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:04,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:04,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:04,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:04,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:05,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:05,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:05,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:05,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,016 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-11 18:36:05,017 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-11 18:36:05,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:05,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 18:36:05,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 18:36:05,033 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-11 18:36:05,039 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-11 18:36:05,040 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:05,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:05,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-03-11 18:36:05,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407795354] [2021-03-11 18:36:05,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 18:36:05,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:05,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 18:36:05,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-03-11 18:36:05,060 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:05,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 311 transitions, 7260 flow. Second operand has 14 states, 14 states have (on average 77.0) internal successors, (1078), 14 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:05,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:05,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:05,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:05,388 INFO L129 PetriNetUnfolder]: 242/635 cut-off events. [2021-03-11 18:36:05,388 INFO L130 PetriNetUnfolder]: For 20037/20043 co-relation queries the response was YES. [2021-03-11 18:36:05,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6142 conditions, 635 events. 242/635 cut-off events. For 20037/20043 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4364 event pairs, 0 based on Foata normal form. 11/646 useless extension candidates. Maximal degree in co-relation 6066. Up to 288 conditions per place. [2021-03-11 18:36:05,397 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 163 selfloop transitions, 185 changer transitions 0/355 dead transitions. [2021-03-11 18:36:05,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 355 transitions, 9093 flow [2021-03-11 18:36:05,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 18:36:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-11 18:36:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1338 transitions. [2021-03-11 18:36:05,399 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6726998491704375 [2021-03-11 18:36:05,399 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1338 transitions. [2021-03-11 18:36:05,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1338 transitions. [2021-03-11 18:36:05,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:05,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1338 transitions. [2021-03-11 18:36:05,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 78.70588235294117) internal successors, (1338), 17 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:05,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 117.0) internal successors, (2106), 18 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:05,403 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 117.0) internal successors, (2106), 18 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:05,403 INFO L185 Difference]: Start difference. First operand has 189 places, 311 transitions, 7260 flow. Second operand 17 states and 1338 transitions. [2021-03-11 18:36:05,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 355 transitions, 9093 flow [2021-03-11 18:36:05,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 355 transitions, 8991 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-03-11 18:36:05,504 INFO L241 Difference]: Finished difference. Result has 202 places, 344 transitions, 8731 flow [2021-03-11 18:36:05,505 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=7180, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8731, PETRI_PLACES=202, PETRI_TRANSITIONS=344} [2021-03-11 18:36:05,505 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 184 predicate places. [2021-03-11 18:36:05,505 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 344 transitions, 8731 flow [2021-03-11 18:36:05,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 77.0) internal successors, (1078), 14 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:05,505 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:05,505 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:05,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:05,723 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:05,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1860606053, now seen corresponding path program 8 times [2021-03-11 18:36:05,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:05,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264136276] [2021-03-11 18:36:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:05,748 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:05,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,753 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-11 18:36:05,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:05,760 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:36:05,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:05,767 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:05,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,776 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:05,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,786 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:05,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,796 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:05,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:05,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264136276] [2021-03-11 18:36:05,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748068357] [2021-03-11 18:36:05,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:05,870 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:36:05,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:05,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:05,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:05,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:05,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:05,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:05,895 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-11 18:36:05,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:05,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:05,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:05,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:05,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:05,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 18:36:05,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:05,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:05,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:05,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:05,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:05,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:05,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:05,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:05,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:05,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:05,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:05,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:05,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:05,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:05,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:05,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:05,985 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:05,986 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:05,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:06,006 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:06,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:06,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-11 18:36:06,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208129396] [2021-03-11 18:36:06,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 18:36:06,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:06,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 18:36:06,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-03-11 18:36:06,007 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:06,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 344 transitions, 8731 flow. Second operand has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:06,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:06,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:06,148 INFO L129 PetriNetUnfolder]: 244/642 cut-off events. [2021-03-11 18:36:06,148 INFO L130 PetriNetUnfolder]: For 18931/18937 co-relation queries the response was YES. [2021-03-11 18:36:06,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6544 conditions, 642 events. 244/642 cut-off events. For 18931/18937 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4491 event pairs, 0 based on Foata normal form. 8/650 useless extension candidates. Maximal degree in co-relation 6464. Up to 424 conditions per place. [2021-03-11 18:36:06,154 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 319 selfloop transitions, 32 changer transitions 0/358 dead transitions. [2021-03-11 18:36:06,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 358 transitions, 9681 flow [2021-03-11 18:36:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 18:36:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 18:36:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 705 transitions. [2021-03-11 18:36:06,155 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-11 18:36:06,155 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 705 transitions. [2021-03-11 18:36:06,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 705 transitions. [2021-03-11 18:36:06,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:06,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 705 transitions. [2021-03-11 18:36:06,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.33333333333333) internal successors, (705), 9 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,157 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,157 INFO L185 Difference]: Start difference. First operand has 202 places, 344 transitions, 8731 flow. Second operand 9 states and 705 transitions. [2021-03-11 18:36:06,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 358 transitions, 9681 flow [2021-03-11 18:36:06,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 358 transitions, 9263 flow, removed 170 selfloop flow, removed 11 redundant places. [2021-03-11 18:36:06,242 INFO L241 Difference]: Finished difference. Result has 201 places, 346 transitions, 8476 flow [2021-03-11 18:36:06,242 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=8323, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8476, PETRI_PLACES=201, PETRI_TRANSITIONS=346} [2021-03-11 18:36:06,242 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 183 predicate places. [2021-03-11 18:36:06,242 INFO L480 AbstractCegarLoop]: Abstraction has has 201 places, 346 transitions, 8476 flow [2021-03-11 18:36:06,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,242 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:06,242 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:06,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-03-11 18:36:06,443 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:06,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:06,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1037410283, now seen corresponding path program 9 times [2021-03-11 18:36:06,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:06,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166514413] [2021-03-11 18:36:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:06,457 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:06,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,461 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:06,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:06,466 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-03-11 18:36:06,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:06,473 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:06,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,480 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:06,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,490 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:06,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,502 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:06,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:06,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166514413] [2021-03-11 18:36:06,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892094676] [2021-03-11 18:36:06,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:06,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-11 18:36:06,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:06,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:06,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:06,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:06,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:06,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:06,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:06,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:06,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:06,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:06,587 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-11 18:36:06,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:06,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:06,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:06,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:06,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:06,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:06,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:06,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:06,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:06,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:06,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:06,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:06,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:06,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:06,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:06,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:06,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:06,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:06,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:06,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:06,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:06,658 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:06,659 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:06,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:06,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:06,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-11 18:36:06,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078661032] [2021-03-11 18:36:06,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 18:36:06,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:06,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 18:36:06,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-03-11 18:36:06,667 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:06,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 346 transitions, 8476 flow. Second operand has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:06,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:06,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:06,851 INFO L129 PetriNetUnfolder]: 246/647 cut-off events. [2021-03-11 18:36:06,851 INFO L130 PetriNetUnfolder]: For 17988/17994 co-relation queries the response was YES. [2021-03-11 18:36:06,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6458 conditions, 647 events. 246/647 cut-off events. For 17988/17994 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4463 event pairs, 0 based on Foata normal form. 8/655 useless extension candidates. Maximal degree in co-relation 6378. Up to 405 conditions per place. [2021-03-11 18:36:06,860 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 296 selfloop transitions, 55 changer transitions 0/358 dead transitions. [2021-03-11 18:36:06,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 358 transitions, 9394 flow [2021-03-11 18:36:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 18:36:06,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 18:36:06,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 784 transitions. [2021-03-11 18:36:06,862 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67008547008547 [2021-03-11 18:36:06,862 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 784 transitions. [2021-03-11 18:36:06,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 784 transitions. [2021-03-11 18:36:06,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:06,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 784 transitions. [2021-03-11 18:36:06,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.4) internal successors, (784), 10 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,864 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,864 INFO L185 Difference]: Start difference. First operand has 201 places, 346 transitions, 8476 flow. Second operand 10 states and 784 transitions. [2021-03-11 18:36:06,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 358 transitions, 9394 flow [2021-03-11 18:36:06,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 358 transitions, 9235 flow, removed 61 selfloop flow, removed 6 redundant places. [2021-03-11 18:36:06,981 INFO L241 Difference]: Finished difference. Result has 206 places, 348 transitions, 8540 flow [2021-03-11 18:36:06,982 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=8319, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8540, PETRI_PLACES=206, PETRI_TRANSITIONS=348} [2021-03-11 18:36:06,982 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 188 predicate places. [2021-03-11 18:36:06,982 INFO L480 AbstractCegarLoop]: Abstraction has has 206 places, 348 transitions, 8540 flow [2021-03-11 18:36:06,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:06,982 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:06,983 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:07,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:07,198 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:07,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:07,198 INFO L82 PathProgramCache]: Analyzing trace with hash -408224363, now seen corresponding path program 10 times [2021-03-11 18:36:07,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:07,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685262078] [2021-03-11 18:36:07,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:07,216 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,220 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:07,226 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,232 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,240 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:07,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,248 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:07,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,257 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:07,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:07,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685262078] [2021-03-11 18:36:07,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216825106] [2021-03-11 18:36:07,265 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:07,326 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-11 18:36:07,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:07,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:07,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:07,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:07,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:07,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:07,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:07,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:07,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:07,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:07,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:07,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:07,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:07,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:07,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:07,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:07,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:07,398 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-11 18:36:07,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:07,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:07,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:07,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:07,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:07,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:07,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:07,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:07,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:07,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:07,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:07,435 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:07,435 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:07,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:07,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:07,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-11 18:36:07,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851357170] [2021-03-11 18:36:07,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 18:36:07,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:07,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 18:36:07,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-03-11 18:36:07,444 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:07,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 348 transitions, 8540 flow. Second operand has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:07,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:07,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:07,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:07,655 INFO L129 PetriNetUnfolder]: 250/657 cut-off events. [2021-03-11 18:36:07,655 INFO L130 PetriNetUnfolder]: For 18299/18305 co-relation queries the response was YES. [2021-03-11 18:36:07,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6571 conditions, 657 events. 250/657 cut-off events. For 18299/18305 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4562 event pairs, 0 based on Foata normal form. 8/665 useless extension candidates. Maximal degree in co-relation 6489. Up to 389 conditions per place. [2021-03-11 18:36:07,664 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 272 selfloop transitions, 80 changer transitions 0/359 dead transitions. [2021-03-11 18:36:07,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 359 transitions, 9436 flow [2021-03-11 18:36:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 18:36:07,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 18:36:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 942 transitions. [2021-03-11 18:36:07,666 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6709401709401709 [2021-03-11 18:36:07,666 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 942 transitions. [2021-03-11 18:36:07,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 942 transitions. [2021-03-11 18:36:07,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:07,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 942 transitions. [2021-03-11 18:36:07,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.5) internal successors, (942), 12 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:07,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:07,669 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 117.0) internal successors, (1521), 13 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:07,669 INFO L185 Difference]: Start difference. First operand has 206 places, 348 transitions, 8540 flow. Second operand 12 states and 942 transitions. [2021-03-11 18:36:07,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 359 transitions, 9436 flow [2021-03-11 18:36:07,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 359 transitions, 9363 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-11 18:36:07,791 INFO L241 Difference]: Finished difference. Result has 212 places, 352 transitions, 8784 flow [2021-03-11 18:36:07,792 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=8471, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8784, PETRI_PLACES=212, PETRI_TRANSITIONS=352} [2021-03-11 18:36:07,792 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 194 predicate places. [2021-03-11 18:36:07,792 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 352 transitions, 8784 flow [2021-03-11 18:36:07,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:07,792 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:07,792 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:08,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-11 18:36:08,015 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:08,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:08,015 INFO L82 PathProgramCache]: Analyzing trace with hash -407569643, now seen corresponding path program 11 times [2021-03-11 18:36:08,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:08,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279296765] [2021-03-11 18:36:08,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:08,028 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:08,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,033 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,039 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:08,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,045 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:08,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,051 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:08,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,058 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:08,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,066 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:08,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:08,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279296765] [2021-03-11 18:36:08,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033864395] [2021-03-11 18:36:08,073 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:08,112 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-11 18:36:08,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:08,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:08,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:08,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:08,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:08,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:08,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:08,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:08,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:08,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:08,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:08,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:08,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:08,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:08,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:08,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:08,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:08,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:08,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:36:08,215 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-11 18:36:08,215 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:08,216 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:08,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:08,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:08,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-11 18:36:08,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536741504] [2021-03-11 18:36:08,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 18:36:08,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:08,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 18:36:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-03-11 18:36:08,225 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:08,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 352 transitions, 8784 flow. Second operand has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:08,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:08,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:08,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:08,447 INFO L129 PetriNetUnfolder]: 254/668 cut-off events. [2021-03-11 18:36:08,447 INFO L130 PetriNetUnfolder]: For 18515/18521 co-relation queries the response was YES. [2021-03-11 18:36:08,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6792 conditions, 668 events. 254/668 cut-off events. For 18515/18521 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 4721 event pairs, 0 based on Foata normal form. 8/676 useless extension candidates. Maximal degree in co-relation 6708. Up to 387 conditions per place. [2021-03-11 18:36:08,453 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 265 selfloop transitions, 95 changer transitions 0/367 dead transitions. [2021-03-11 18:36:08,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 367 transitions, 9985 flow [2021-03-11 18:36:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 18:36:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 18:36:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1179 transitions. [2021-03-11 18:36:08,468 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6717948717948717 [2021-03-11 18:36:08,468 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1179 transitions. [2021-03-11 18:36:08,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1179 transitions. [2021-03-11 18:36:08,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:08,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1179 transitions. [2021-03-11 18:36:08,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.6) internal successors, (1179), 15 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:08,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:08,472 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:08,472 INFO L185 Difference]: Start difference. First operand has 212 places, 352 transitions, 8784 flow. Second operand 15 states and 1179 transitions. [2021-03-11 18:36:08,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 367 transitions, 9985 flow [2021-03-11 18:36:08,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 367 transitions, 9830 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-11 18:36:08,586 INFO L241 Difference]: Finished difference. Result has 219 places, 361 transitions, 9276 flow [2021-03-11 18:36:08,586 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=8638, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9276, PETRI_PLACES=219, PETRI_TRANSITIONS=361} [2021-03-11 18:36:08,587 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 201 predicate places. [2021-03-11 18:36:08,587 INFO L480 AbstractCegarLoop]: Abstraction has has 219 places, 361 transitions, 9276 flow [2021-03-11 18:36:08,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 77.0) internal successors, (1155), 15 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:08,587 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:08,587 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:08,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:08,791 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:08,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:08,791 INFO L82 PathProgramCache]: Analyzing trace with hash 254136080, now seen corresponding path program 19 times [2021-03-11 18:36:08,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:08,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486922523] [2021-03-11 18:36:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:08,805 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:08,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,810 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:36:08,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,816 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-03-11 18:36:08,816 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-03-11 18:36:08,828 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-03-11 18:36:08,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:08,835 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:36:08,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,855 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:08,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:08,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486922523] [2021-03-11 18:36:08,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668974467] [2021-03-11 18:36:08,865 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:08,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:08,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:08,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:08,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:08,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:08,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:08,944 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-11 18:36:08,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:08,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:08,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:08,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:08,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:08,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:08,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:08,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:08,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:08,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:08,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:08,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:08,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:08,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:08,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:08,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:08,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:09,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:09,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:09,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:09,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,011 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-11 18:36:09,011 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-11 18:36:09,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:09,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:09,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:09,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:09,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:09,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,034 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:09,035 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:09,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:09,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:09,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149392157] [2021-03-11 18:36:09,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:09,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:09,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:09,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:09,068 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:09,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 361 transitions, 9276 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:09,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:09,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:09,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:09,388 INFO L129 PetriNetUnfolder]: 260/686 cut-off events. [2021-03-11 18:36:09,389 INFO L130 PetriNetUnfolder]: For 18032/18038 co-relation queries the response was YES. [2021-03-11 18:36:09,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7054 conditions, 686 events. 260/686 cut-off events. For 18032/18038 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 4831 event pairs, 0 based on Foata normal form. 7/693 useless extension candidates. Maximal degree in co-relation 6968. Up to 398 conditions per place. [2021-03-11 18:36:09,397 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 303 selfloop transitions, 87 changer transitions 0/397 dead transitions. [2021-03-11 18:36:09,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 397 transitions, 10735 flow [2021-03-11 18:36:09,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 18:36:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 18:36:09,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1252 transitions. [2021-03-11 18:36:09,398 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6688034188034188 [2021-03-11 18:36:09,398 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1252 transitions. [2021-03-11 18:36:09,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1252 transitions. [2021-03-11 18:36:09,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:09,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1252 transitions. [2021-03-11 18:36:09,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.25) internal successors, (1252), 16 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:09,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:09,402 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:09,402 INFO L185 Difference]: Start difference. First operand has 219 places, 361 transitions, 9276 flow. Second operand 16 states and 1252 transitions. [2021-03-11 18:36:09,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 397 transitions, 10735 flow [2021-03-11 18:36:09,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 397 transitions, 10390 flow, removed 141 selfloop flow, removed 10 redundant places. [2021-03-11 18:36:09,532 INFO L241 Difference]: Finished difference. Result has 228 places, 374 transitions, 9538 flow [2021-03-11 18:36:09,533 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=8931, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9538, PETRI_PLACES=228, PETRI_TRANSITIONS=374} [2021-03-11 18:36:09,533 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 210 predicate places. [2021-03-11 18:36:09,533 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 374 transitions, 9538 flow [2021-03-11 18:36:09,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:09,533 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:09,533 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:09,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-03-11 18:36:09,734 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:09,734 INFO L82 PathProgramCache]: Analyzing trace with hash 337909266, now seen corresponding path program 20 times [2021-03-11 18:36:09,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:09,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371404246] [2021-03-11 18:36:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:09,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:09,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,759 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:36:09,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:09,764 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-03-11 18:36:09,764 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-03-11 18:36:09,777 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-03-11 18:36:09,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:09,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:09,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:09,800 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:09,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:09,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371404246] [2021-03-11 18:36:09,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854468851] [2021-03-11 18:36:09,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:09,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:36:09,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:09,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:09,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:09,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:09,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:09,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:09,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:09,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:09,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:09,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:09,909 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-11 18:36:09,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:09,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:09,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:09,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:09,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:09,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:09,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:09,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:09,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:09,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:09,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:09,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:09,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:09,978 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:09,978 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:09,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:09,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:09,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:09,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910792406] [2021-03-11 18:36:09,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:09,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:09,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:09,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:09,992 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:09,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 374 transitions, 9538 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:09,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:09,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:09,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:10,269 INFO L129 PetriNetUnfolder]: 264/698 cut-off events. [2021-03-11 18:36:10,270 INFO L130 PetriNetUnfolder]: For 19623/19629 co-relation queries the response was YES. [2021-03-11 18:36:10,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 698 events. 264/698 cut-off events. For 19623/19629 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 4954 event pairs, 0 based on Foata normal form. 7/705 useless extension candidates. Maximal degree in co-relation 7082. Up to 404 conditions per place. [2021-03-11 18:36:10,277 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 306 selfloop transitions, 90 changer transitions 0/403 dead transitions. [2021-03-11 18:36:10,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 403 transitions, 10873 flow [2021-03-11 18:36:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 18:36:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 18:36:10,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1252 transitions. [2021-03-11 18:36:10,279 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6688034188034188 [2021-03-11 18:36:10,279 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1252 transitions. [2021-03-11 18:36:10,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1252 transitions. [2021-03-11 18:36:10,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:10,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1252 transitions. [2021-03-11 18:36:10,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.25) internal successors, (1252), 16 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:10,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:10,283 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:10,283 INFO L185 Difference]: Start difference. First operand has 228 places, 374 transitions, 9538 flow. Second operand 16 states and 1252 transitions. [2021-03-11 18:36:10,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 403 transitions, 10873 flow [2021-03-11 18:36:10,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 403 transitions, 10780 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-11 18:36:10,444 INFO L241 Difference]: Finished difference. Result has 237 places, 383 transitions, 9963 flow [2021-03-11 18:36:10,445 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=9447, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9963, PETRI_PLACES=237, PETRI_TRANSITIONS=383} [2021-03-11 18:36:10,445 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 219 predicate places. [2021-03-11 18:36:10,445 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 383 transitions, 9963 flow [2021-03-11 18:36:10,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:10,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:10,445 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:10,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:10,646 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:10,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:10,646 INFO L82 PathProgramCache]: Analyzing trace with hash 685465554, now seen corresponding path program 21 times [2021-03-11 18:36:10,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:10,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688365297] [2021-03-11 18:36:10,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:10,660 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:10,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,665 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:36:10,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,670 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-03-11 18:36:10,671 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-03-11 18:36:10,685 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:10,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,693 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:10,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,702 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-03-11 18:36:10,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,712 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:10,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:10,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688365297] [2021-03-11 18:36:10,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828990642] [2021-03-11 18:36:10,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:10,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-11 18:36:10,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:10,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:10,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:10,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:10,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:10,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:10,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:10,801 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-03-11 18:36:10,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:10,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:10,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:10,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:10,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:10,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:10,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:10,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:10,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:10,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:10,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:10,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:10,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:10,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:10,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:10,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:10,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:10,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:10,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:10,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:10,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:10,889 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:10,890 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:10,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:10,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:10,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:10,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596395748] [2021-03-11 18:36:10,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:10,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:10,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:10,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:10,910 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:10,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 383 transitions, 9963 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:10,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:10,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:10,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:11,071 INFO L129 PetriNetUnfolder]: 265/700 cut-off events. [2021-03-11 18:36:11,072 INFO L130 PetriNetUnfolder]: For 21195/21201 co-relation queries the response was YES. [2021-03-11 18:36:11,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7334 conditions, 700 events. 265/700 cut-off events. For 21195/21201 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 4983 event pairs, 0 based on Foata normal form. 7/707 useless extension candidates. Maximal degree in co-relation 7240. Up to 448 conditions per place. [2021-03-11 18:36:11,079 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 338 selfloop transitions, 49 changer transitions 0/394 dead transitions. [2021-03-11 18:36:11,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 394 transitions, 10938 flow [2021-03-11 18:36:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 18:36:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 18:36:11,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 784 transitions. [2021-03-11 18:36:11,080 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.67008547008547 [2021-03-11 18:36:11,080 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 784 transitions. [2021-03-11 18:36:11,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 784 transitions. [2021-03-11 18:36:11,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:11,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 784 transitions. [2021-03-11 18:36:11,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.4) internal successors, (784), 10 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:11,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:11,083 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:11,083 INFO L185 Difference]: Start difference. First operand has 237 places, 383 transitions, 9963 flow. Second operand 10 states and 784 transitions. [2021-03-11 18:36:11,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 394 transitions, 10938 flow [2021-03-11 18:36:11,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 394 transitions, 10773 flow, removed 27 selfloop flow, removed 12 redundant places. [2021-03-11 18:36:11,184 INFO L241 Difference]: Finished difference. Result has 236 places, 385 transitions, 10011 flow [2021-03-11 18:36:11,185 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=9798, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10011, PETRI_PLACES=236, PETRI_TRANSITIONS=385} [2021-03-11 18:36:11,185 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 218 predicate places. [2021-03-11 18:36:11,185 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 385 transitions, 10011 flow [2021-03-11 18:36:11,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:11,185 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:11,185 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:11,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-03-11 18:36:11,387 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:11,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:11,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1026855250, now seen corresponding path program 22 times [2021-03-11 18:36:11,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:11,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033795029] [2021-03-11 18:36:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:11,403 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:11,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,408 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:11,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:11,413 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:11,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,420 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:11,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,427 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-11 18:36:11,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,439 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 18:36:11,440 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:36:11,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:11,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:11,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033795029] [2021-03-11 18:36:11,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942539050] [2021-03-11 18:36:11,461 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:11,504 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-11 18:36:11,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:11,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:11,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:11,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:11,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:11,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:11,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:11,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:11,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:11,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:11,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:11,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:11,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:11,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:11,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:11,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:11,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:11,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:11,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:11,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:11,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:11,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:11,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:11,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:11,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:11,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,590 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-11 18:36:11,590 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-11 18:36:11,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:11,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 18:36:11,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 18:36:11,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 18:36:11,605 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-11 18:36:11,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,611 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:36:11,612 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,615 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-03-11 18:36:11,615 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-03-11 18:36:11,616 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:36:11,617 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:11,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:11,618 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-03-11 18:36:11,628 INFO L147 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size 528 [2021-03-11 18:36:11,631 INFO L147 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size 528 [2021-03-11 18:36:11,634 INFO L142 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size [2021-03-11 18:36:11,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-03-11 18:36:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:11,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:11,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:11,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007630434] [2021-03-11 18:36:11,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:11,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:11,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:11,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:11,715 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:11,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 385 transitions, 10011 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:11,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:11,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:11,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:12,102 INFO L129 PetriNetUnfolder]: 278/735 cut-off events. [2021-03-11 18:36:12,102 INFO L130 PetriNetUnfolder]: For 28612/28618 co-relation queries the response was YES. [2021-03-11 18:36:12,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7856 conditions, 735 events. 278/735 cut-off events. For 28612/28618 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5262 event pairs, 0 based on Foata normal form. 11/746 useless extension candidates. Maximal degree in co-relation 7760. Up to 329 conditions per place. [2021-03-11 18:36:12,109 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 178 selfloop transitions, 227 changer transitions 0/412 dead transitions. [2021-03-11 18:36:12,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 412 transitions, 11775 flow [2021-03-11 18:36:12,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 18:36:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 18:36:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1495 transitions. [2021-03-11 18:36:12,113 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.672514619883041 [2021-03-11 18:36:12,113 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1495 transitions. [2021-03-11 18:36:12,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1495 transitions. [2021-03-11 18:36:12,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:12,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1495 transitions. [2021-03-11 18:36:12,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 78.6842105263158) internal successors, (1495), 19 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 117.0) internal successors, (2340), 20 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,116 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 117.0) internal successors, (2340), 20 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,116 INFO L185 Difference]: Start difference. First operand has 236 places, 385 transitions, 10011 flow. Second operand 19 states and 1495 transitions. [2021-03-11 18:36:12,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 412 transitions, 11775 flow [2021-03-11 18:36:12,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 412 transitions, 11718 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-11 18:36:12,220 INFO L241 Difference]: Finished difference. Result has 253 places, 407 transitions, 11533 flow [2021-03-11 18:36:12,220 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=9956, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11533, PETRI_PLACES=253, PETRI_TRANSITIONS=407} [2021-03-11 18:36:12,220 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 235 predicate places. [2021-03-11 18:36:12,220 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 407 transitions, 11533 flow [2021-03-11 18:36:12,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,221 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:12,221 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:12,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:12,435 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:12,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:12,435 INFO L82 PathProgramCache]: Analyzing trace with hash 126740354, now seen corresponding path program 23 times [2021-03-11 18:36:12,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:12,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771555106] [2021-03-11 18:36:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:12,448 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:12,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,452 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:12,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:12,457 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-11 18:36:12,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:12,463 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 18:36:12,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:12,473 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:36:12,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:12,480 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-11 18:36:12,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:12,488 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:12,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:12,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771555106] [2021-03-11 18:36:12,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972886741] [2021-03-11 18:36:12,495 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:12,534 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:36:12,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:12,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:12,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:12,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:12,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:12,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:12,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:12,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:12,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:12,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:12,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:12,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:12,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:12,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:12,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:12,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:12,580 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-11 18:36:12,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:36:12,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:36:12,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:12,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:12,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:12,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:12,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:12,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:12,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:12,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:12,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,613 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-11 18:36:12,613 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-11 18:36:12,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:12,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:12,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 18:36:12,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:12,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 18:36:12,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:36:12,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:36:12,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:12,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 18:36:12,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:12,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 18:36:12,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 18:36:12,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:12,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:12,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:12,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:12,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:12,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:12,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607228414] [2021-03-11 18:36:12,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:12,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:12,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:12,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:12,657 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:12,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 407 transitions, 11533 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:12,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:12,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:12,944 INFO L129 PetriNetUnfolder]: 286/758 cut-off events. [2021-03-11 18:36:12,945 INFO L130 PetriNetUnfolder]: For 27504/27510 co-relation queries the response was YES. [2021-03-11 18:36:12,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8581 conditions, 758 events. 286/758 cut-off events. For 27504/27510 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 5472 event pairs, 0 based on Foata normal form. 7/765 useless extension candidates. Maximal degree in co-relation 8480. Up to 440 conditions per place. [2021-03-11 18:36:12,953 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 329 selfloop transitions, 99 changer transitions 0/435 dead transitions. [2021-03-11 18:36:12,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 435 transitions, 13138 flow [2021-03-11 18:36:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 18:36:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 18:36:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1253 transitions. [2021-03-11 18:36:12,955 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6693376068376068 [2021-03-11 18:36:12,955 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1253 transitions. [2021-03-11 18:36:12,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1253 transitions. [2021-03-11 18:36:12,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:12,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1253 transitions. [2021-03-11 18:36:12,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.3125) internal successors, (1253), 16 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,958 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:12,958 INFO L185 Difference]: Start difference. First operand has 253 places, 407 transitions, 11533 flow. Second operand 16 states and 1253 transitions. [2021-03-11 18:36:12,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 435 transitions, 13138 flow [2021-03-11 18:36:13,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 435 transitions, 12669 flow, removed 184 selfloop flow, removed 11 redundant places. [2021-03-11 18:36:13,133 INFO L241 Difference]: Finished difference. Result has 260 places, 418 transitions, 11821 flow [2021-03-11 18:36:13,134 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=11124, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=11821, PETRI_PLACES=260, PETRI_TRANSITIONS=418} [2021-03-11 18:36:13,134 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 242 predicate places. [2021-03-11 18:36:13,134 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 418 transitions, 11821 flow [2021-03-11 18:36:13,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:13,134 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:13,134 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:13,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-03-11 18:36:13,335 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:13,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:13,335 INFO L82 PathProgramCache]: Analyzing trace with hash 381013856, now seen corresponding path program 24 times [2021-03-11 18:36:13,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:13,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119503243] [2021-03-11 18:36:13,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:13,350 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:13,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,355 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:13,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:13,362 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-03-11 18:36:13,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,369 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 18:36:13,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:13,382 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:36:13,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:13,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:13,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-11 18:36:13,398 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:36:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:13,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119503243] [2021-03-11 18:36:13,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381311713] [2021-03-11 18:36:13,415 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:13,458 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-11 18:36:13,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:13,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:13,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:13,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:13,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:13,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:13,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:13,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:13,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:13,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:13,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:13,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:13,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:13,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:13,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:13,523 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-11 18:36:13,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:36:13,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 18:36:13,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:13,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:13,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:13,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:13,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:13,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:13,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:13,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:13,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,553 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-11 18:36:13,553 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-11 18:36:13,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:13,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:13,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:13,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:13,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:13,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,574 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-03-11 18:36:13,574 INFO L142 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size [2021-03-11 18:36:13,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 18:36:13,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 18:36:13,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 18:36:13,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:13,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 18:36:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 18:36:13,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:13,603 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size 32 [2021-03-11 18:36:13,603 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size [2021-03-11 18:36:13,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 18:36:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:13,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:13,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:13,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460835462] [2021-03-11 18:36:13,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:13,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:13,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:13,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:13,630 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:13,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 418 transitions, 11821 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:13,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:13,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:13,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:13,945 INFO L129 PetriNetUnfolder]: 291/771 cut-off events. [2021-03-11 18:36:13,945 INFO L130 PetriNetUnfolder]: For 28145/28151 co-relation queries the response was YES. [2021-03-11 18:36:13,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8730 conditions, 771 events. 291/771 cut-off events. For 28145/28151 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5610 event pairs, 0 based on Foata normal form. 7/778 useless extension candidates. Maximal degree in co-relation 8626. Up to 435 conditions per place. [2021-03-11 18:36:13,952 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 324 selfloop transitions, 112 changer transitions 0/443 dead transitions. [2021-03-11 18:36:13,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 443 transitions, 13326 flow [2021-03-11 18:36:13,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 18:36:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 18:36:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1175 transitions. [2021-03-11 18:36:13,953 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-11 18:36:13,953 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1175 transitions. [2021-03-11 18:36:13,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1175 transitions. [2021-03-11 18:36:13,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:13,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1175 transitions. [2021-03-11 18:36:13,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.33333333333333) internal successors, (1175), 15 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:13,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:13,956 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:13,956 INFO L185 Difference]: Start difference. First operand has 260 places, 418 transitions, 11821 flow. Second operand 15 states and 1175 transitions. [2021-03-11 18:36:13,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 443 transitions, 13326 flow [2021-03-11 18:36:14,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 443 transitions, 13187 flow, removed 27 selfloop flow, removed 8 redundant places. [2021-03-11 18:36:14,107 INFO L241 Difference]: Finished difference. Result has 269 places, 425 transitions, 12357 flow [2021-03-11 18:36:14,107 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=11682, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12357, PETRI_PLACES=269, PETRI_TRANSITIONS=425} [2021-03-11 18:36:14,107 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 251 predicate places. [2021-03-11 18:36:14,108 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 425 transitions, 12357 flow [2021-03-11 18:36:14,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:14,108 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:14,108 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:14,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-03-11 18:36:14,324 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:14,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:14,324 INFO L82 PathProgramCache]: Analyzing trace with hash 650740888, now seen corresponding path program 25 times [2021-03-11 18:36:14,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:14,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416331428] [2021-03-11 18:36:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:14,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:14,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,344 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:14,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:14,350 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-03-11 18:36:14,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,356 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-11 18:36:14,356 INFO L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-03-11 18:36:14,368 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-11 18:36:14,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:14,376 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 18:36:14,376 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:36:14,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:14,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:14,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416331428] [2021-03-11 18:36:14,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308991431] [2021-03-11 18:36:14,397 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:14,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:14,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:14,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:14,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:14,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:14,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:14,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:14,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:14,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:14,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:14,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:14,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:14,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:14,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:14,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:14,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,517 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-11 18:36:14,517 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-11 18:36:14,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:14,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:14,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 18:36:14,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 18:36:14,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,536 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-03-11 18:36:14,536 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-03-11 18:36:14,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:36:14,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 18:36:14,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 18:36:14,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 18:36:14,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 18:36:14,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,561 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-03-11 18:36:14,561 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-11 18:36:14,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:14,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:14,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 18:36:14,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 18:36:14,583 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-11 18:36:14,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,585 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-11 18:36:14,585 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,587 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-03-11 18:36:14,587 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-03-11 18:36:14,588 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:36:14,588 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:14,589 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.0 percent of original size [2021-03-11 18:36:14,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:14,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:14,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:14,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:14,608 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:14,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:14,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:14,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050132550] [2021-03-11 18:36:14,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:14,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:14,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:14,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:14,609 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:14,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 425 transitions, 12357 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:14,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:14,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:14,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:15,155 INFO L129 PetriNetUnfolder]: 316/841 cut-off events. [2021-03-11 18:36:15,156 INFO L130 PetriNetUnfolder]: For 38678/38684 co-relation queries the response was YES. [2021-03-11 18:36:15,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9779 conditions, 841 events. 316/841 cut-off events. For 38678/38684 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 6193 event pairs, 0 based on Foata normal form. 11/852 useless extension candidates. Maximal degree in co-relation 9672. Up to 389 conditions per place. [2021-03-11 18:36:15,164 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 105 selfloop transitions, 356 changer transitions 0/468 dead transitions. [2021-03-11 18:36:15,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 468 transitions, 14805 flow [2021-03-11 18:36:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-11 18:36:15,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-03-11 18:36:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1966 transitions. [2021-03-11 18:36:15,165 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6721367521367522 [2021-03-11 18:36:15,165 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1966 transitions. [2021-03-11 18:36:15,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1966 transitions. [2021-03-11 18:36:15,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:15,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1966 transitions. [2021-03-11 18:36:15,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 78.64) internal successors, (1966), 25 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:15,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 117.0) internal successors, (3042), 26 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:15,169 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 117.0) internal successors, (3042), 26 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:15,169 INFO L185 Difference]: Start difference. First operand has 269 places, 425 transitions, 12357 flow. Second operand 25 states and 1966 transitions. [2021-03-11 18:36:15,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 468 transitions, 14805 flow [2021-03-11 18:36:15,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 468 transitions, 14673 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-11 18:36:15,338 INFO L241 Difference]: Finished difference. Result has 287 places, 463 transitions, 14720 flow [2021-03-11 18:36:15,338 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=12235, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=14720, PETRI_PLACES=287, PETRI_TRANSITIONS=463} [2021-03-11 18:36:15,338 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 269 predicate places. [2021-03-11 18:36:15,338 INFO L480 AbstractCegarLoop]: Abstraction has has 287 places, 463 transitions, 14720 flow [2021-03-11 18:36:15,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:15,338 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:15,338 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:15,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-03-11 18:36:15,539 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:15,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:15,539 INFO L82 PathProgramCache]: Analyzing trace with hash 3594196, now seen corresponding path program 26 times [2021-03-11 18:36:15,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:15,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981116198] [2021-03-11 18:36:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:15,570 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:15,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,575 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:36:15,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,581 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-11 18:36:15,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:15,587 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:36:15,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,594 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:36:15,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,603 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-11 18:36:15,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:15,612 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:15,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:15,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981116198] [2021-03-11 18:36:15,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984589720] [2021-03-11 18:36:15,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:15,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-11 18:36:15,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:15,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:15,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:15,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:15,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:15,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:15,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:15,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:15,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:15,748 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-11 18:36:15,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:15,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:15,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:15,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:15,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:15,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:15,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:15,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:15,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:15,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:15,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:15,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:15,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:15,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:15,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:15,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:15,800 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:15,801 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:15,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:15,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:15,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:15,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565216500] [2021-03-11 18:36:15,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:15,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:15,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:15,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:15,815 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:15,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 463 transitions, 14720 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:15,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:15,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:15,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:16,176 INFO L129 PetriNetUnfolder]: 318/851 cut-off events. [2021-03-11 18:36:16,176 INFO L130 PetriNetUnfolder]: For 36013/36019 co-relation queries the response was YES. [2021-03-11 18:36:16,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10462 conditions, 851 events. 318/851 cut-off events. For 36013/36019 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 6448 event pairs, 0 based on Foata normal form. 7/858 useless extension candidates. Maximal degree in co-relation 10350. Up to 477 conditions per place. [2021-03-11 18:36:16,185 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 352 selfloop transitions, 125 changer transitions 0/484 dead transitions. [2021-03-11 18:36:16,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 484 transitions, 16123 flow [2021-03-11 18:36:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 18:36:16,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 18:36:16,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1175 transitions. [2021-03-11 18:36:16,186 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-11 18:36:16,186 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1175 transitions. [2021-03-11 18:36:16,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1175 transitions. [2021-03-11 18:36:16,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:16,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1175 transitions. [2021-03-11 18:36:16,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.33333333333333) internal successors, (1175), 15 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:16,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:16,189 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:16,189 INFO L185 Difference]: Start difference. First operand has 287 places, 463 transitions, 14720 flow. Second operand 15 states and 1175 transitions. [2021-03-11 18:36:16,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 484 transitions, 16123 flow [2021-03-11 18:36:16,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 484 transitions, 15416 flow, removed 279 selfloop flow, removed 14 redundant places. [2021-03-11 18:36:16,533 INFO L241 Difference]: Finished difference. Result has 289 places, 466 transitions, 14529 flow [2021-03-11 18:36:16,534 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=14045, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14529, PETRI_PLACES=289, PETRI_TRANSITIONS=466} [2021-03-11 18:36:16,534 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 271 predicate places. [2021-03-11 18:36:16,534 INFO L480 AbstractCegarLoop]: Abstraction has has 289 places, 466 transitions, 14529 flow [2021-03-11 18:36:16,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:16,534 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:16,534 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:16,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-03-11 18:36:16,747 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:16,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:16,747 INFO L82 PathProgramCache]: Analyzing trace with hash 947375466, now seen corresponding path program 27 times [2021-03-11 18:36:16,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:16,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055914207] [2021-03-11 18:36:16,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:16,763 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:16,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,768 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:36:16,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,774 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-11 18:36:16,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:16,780 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-03-11 18:36:16,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:16,788 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-11 18:36:16,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:16,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,804 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:16,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:16,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055914207] [2021-03-11 18:36:16,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142143043] [2021-03-11 18:36:16,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:16,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-11 18:36:16,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:16,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:16,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:16,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:16,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:16,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:16,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:16,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:16,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:16,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:16,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:16,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:16,912 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-11 18:36:16,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:16,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 18:36:16,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:16,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:16,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:16,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:16,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:16,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:16,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 18:36:16,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,945 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-03-11 18:36:16,945 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-11 18:36:16,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:16,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:16,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:16,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:16,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:16,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 18:36:16,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:16,963 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:16,963 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:16,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:16,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:16,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:16,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:16,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759283255] [2021-03-11 18:36:16,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:16,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:16,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:16,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:16,980 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:16,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 466 transitions, 14529 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:16,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:16,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:16,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:17,360 INFO L129 PetriNetUnfolder]: 321/859 cut-off events. [2021-03-11 18:36:17,361 INFO L130 PetriNetUnfolder]: For 36079/36085 co-relation queries the response was YES. [2021-03-11 18:36:17,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10393 conditions, 859 events. 321/859 cut-off events. For 36079/36085 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 6493 event pairs, 0 based on Foata normal form. 7/866 useless extension candidates. Maximal degree in co-relation 10279. Up to 445 conditions per place. [2021-03-11 18:36:17,370 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 324 selfloop transitions, 164 changer transitions 0/495 dead transitions. [2021-03-11 18:36:17,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 495 transitions, 16110 flow [2021-03-11 18:36:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 18:36:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 18:36:17,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1644 transitions. [2021-03-11 18:36:17,372 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6691086691086691 [2021-03-11 18:36:17,372 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1644 transitions. [2021-03-11 18:36:17,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1644 transitions. [2021-03-11 18:36:17,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:17,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1644 transitions. [2021-03-11 18:36:17,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 78.28571428571429) internal successors, (1644), 21 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:17,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 117.0) internal successors, (2574), 22 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:17,375 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 117.0) internal successors, (2574), 22 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:17,375 INFO L185 Difference]: Start difference. First operand has 289 places, 466 transitions, 14529 flow. Second operand 21 states and 1644 transitions. [2021-03-11 18:36:17,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 495 transitions, 16110 flow [2021-03-11 18:36:17,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 495 transitions, 15896 flow, removed 21 selfloop flow, removed 13 redundant places. [2021-03-11 18:36:17,584 INFO L241 Difference]: Finished difference. Result has 298 places, 470 transitions, 14937 flow [2021-03-11 18:36:17,585 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=14315, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14937, PETRI_PLACES=298, PETRI_TRANSITIONS=470} [2021-03-11 18:36:17,585 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 280 predicate places. [2021-03-11 18:36:17,585 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 470 transitions, 14937 flow [2021-03-11 18:36:17,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:17,585 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:17,585 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:17,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:17,789 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:17,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:17,789 INFO L82 PathProgramCache]: Analyzing trace with hash 967690324, now seen corresponding path program 28 times [2021-03-11 18:36:17,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:17,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534285392] [2021-03-11 18:36:17,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:17,805 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:17,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,810 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-11 18:36:17,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,816 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-11 18:36:17,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,823 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-11 18:36:17,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,830 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-11 18:36:17,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,839 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 18:36:17,839 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:36:17,851 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:17,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:17,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534285392] [2021-03-11 18:36:17,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523801721] [2021-03-11 18:36:17,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:17,896 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-11 18:36:17,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:17,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:17,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:17,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:17,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:17,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:17,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:17,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:17,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:17,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:17,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:17,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:17,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:17,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:17,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:17,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:17,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:17,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:17,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:17,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 18:36:17,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:17,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:17,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:17,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:17,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 18:36:17,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:36:18,000 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-11 18:36:18,000 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-03-11 18:36:18,001 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-03-11 18:36:18,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:18,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-11 18:36:18,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-03-11 18:36:18,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101574245] [2021-03-11 18:36:18,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 18:36:18,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:36:18,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 18:36:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-03-11 18:36:18,010 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 117 [2021-03-11 18:36:18,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 470 transitions, 14937 flow. Second operand has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:18,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:36:18,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 117 [2021-03-11 18:36:18,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:36:18,519 INFO L129 PetriNetUnfolder]: 351/938 cut-off events. [2021-03-11 18:36:18,519 INFO L130 PetriNetUnfolder]: For 48979/48985 co-relation queries the response was YES. [2021-03-11 18:36:18,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11568 conditions, 938 events. 351/938 cut-off events. For 48979/48985 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 7165 event pairs, 0 based on Foata normal form. 11/949 useless extension candidates. Maximal degree in co-relation 11453. Up to 448 conditions per place. [2021-03-11 18:36:18,530 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 170 selfloop transitions, 351 changer transitions 0/528 dead transitions. [2021-03-11 18:36:18,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 528 transitions, 17875 flow [2021-03-11 18:36:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-11 18:36:18,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-03-11 18:36:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1965 transitions. [2021-03-11 18:36:18,532 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6717948717948717 [2021-03-11 18:36:18,532 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1965 transitions. [2021-03-11 18:36:18,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1965 transitions. [2021-03-11 18:36:18,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:36:18,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1965 transitions. [2021-03-11 18:36:18,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 78.6) internal successors, (1965), 25 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:18,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 117.0) internal successors, (3042), 26 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:18,535 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 117.0) internal successors, (3042), 26 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:18,535 INFO L185 Difference]: Start difference. First operand has 298 places, 470 transitions, 14937 flow. Second operand 25 states and 1965 transitions. [2021-03-11 18:36:18,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 528 transitions, 17875 flow [2021-03-11 18:36:18,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 528 transitions, 17605 flow, removed 30 selfloop flow, removed 16 redundant places. [2021-03-11 18:36:18,773 INFO L241 Difference]: Finished difference. Result has 311 places, 516 transitions, 17427 flow [2021-03-11 18:36:18,774 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=14675, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=316, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=17427, PETRI_PLACES=311, PETRI_TRANSITIONS=516} [2021-03-11 18:36:18,774 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 293 predicate places. [2021-03-11 18:36:18,774 INFO L480 AbstractCegarLoop]: Abstraction has has 311 places, 516 transitions, 17427 flow [2021-03-11 18:36:18,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:36:18,774 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:36:18,775 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:36:18,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-03-11 18:36:18,996 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:36:18,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:36:18,996 INFO L82 PathProgramCache]: Analyzing trace with hash 23970558, now seen corresponding path program 29 times [2021-03-11 18:36:18,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:36:18,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067254548] [2021-03-11 18:36:18,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:36:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:36:19,012 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 18:36:19,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,017 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-03-11 18:36:19,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:19,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 18:36:19,038 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-11 18:36:19,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,046 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-11 18:36:19,047 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-11 18:36:19,061 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:36:19,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:36:19,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067254548] [2021-03-11 18:36:19,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622852100] [2021-03-11 18:36:19,069 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-11 18:36:19,121 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-11 18:36:19,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-11 18:36:19,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-11 18:36:19,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-11 18:36:19,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:36:19,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:19,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:19,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:19,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:19,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 18:36:19,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:19,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 18:36:19,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:19,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:19,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:19,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:19,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:19,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:36:19,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:19,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:19,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 18:36:19,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 18:36:19,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,196 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-03-11 18:36:19,197 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-03-11 18:36:19,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 18:36:19,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:19,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 18:36:19,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 18:36:19,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 18:36:19,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,223 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-03-11 18:36:19,223 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-03-11 18:36:19,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 18:36:19,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 18:36:19,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 18:36:19,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 18:36:19,241 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-11 18:36:19,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,245 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.3 percent of original size 34 [2021-03-11 18:36:19,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,246 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.0 percent of original size [2021-03-11 18:36:19,247 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:36:19,248 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,250 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-03-11 18:36:19,250 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-03-11 18:36:19,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,255 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.7 percent of original size 25 [2021-03-11 18:36:19,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,256 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-11 18:36:19,257 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,295 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-11 18:36:19,340 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-11 18:36:19,414 INFO L147 QuantifierPusher]: treesize reduction 62, result has 92.8 percent of original size 802 [2021-03-11 18:36:19,417 INFO L147 QuantifierPusher]: treesize reduction 62, result has 92.8 percent of original size 802 [2021-03-11 18:36:19,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,437 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-03-11 18:36:19,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,441 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-03-11 18:36:19,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,446 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-11 18:36:19,446 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-11 18:36:19,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:36:19,627 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-11 18:36:20,008 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-11 18:36:20,675 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-11 18:36:21,547 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-11 18:36:22,487 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-11 18:36:23,624 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown