/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 00:54:13,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 00:54:13,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 00:54:13,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 00:54:13,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 00:54:13,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 00:54:13,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 00:54:13,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 00:54:13,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 00:54:13,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 00:54:13,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 00:54:13,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 00:54:13,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 00:54:13,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 00:54:13,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 00:54:13,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 00:54:13,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 00:54:13,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 00:54:13,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 00:54:13,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 00:54:13,101 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-NoLbe-OGIterative.epf [2021-08-13 00:54:13,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 00:54:13,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 00:54:13,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 00:54:13,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 00:54:13,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 00:54:13,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 00:54:13,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 00:54:13,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 00:54:13,119 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 00:54:13,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 00:54:13,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 00:54:13,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 00:54:13,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 00:54:13,386 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 00:54:13,388 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 00:54:13,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-08-13 00:54:13,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d983d6cf/f949fd6539004209a35e28915607e78f/FLAGfca2a9ea8 [2021-08-13 00:54:13,839 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 00:54:13,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-08-13 00:54:13,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d983d6cf/f949fd6539004209a35e28915607e78f/FLAGfca2a9ea8 [2021-08-13 00:54:13,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d983d6cf/f949fd6539004209a35e28915607e78f [2021-08-13 00:54:13,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 00:54:13,865 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 00:54:13,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 00:54:13,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 00:54:13,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 00:54:13,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:54:13" (1/1) ... [2021-08-13 00:54:13,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58643227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:13, skipping insertion in model container [2021-08-13 00:54:13,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:54:13" (1/1) ... [2021-08-13 00:54:13,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 00:54:13,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 00:54:14,052 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i[949,962] [2021-08-13 00:54:14,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 00:54:14,130 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 00:54:14,138 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i[949,962] [2021-08-13 00:54:14,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 00:54:14,196 INFO L208 MainTranslator]: Completed translation [2021-08-13 00:54:14,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14 WrapperNode [2021-08-13 00:54:14,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 00:54:14,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 00:54:14,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 00:54:14,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 00:54:14,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 00:54:14,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 00:54:14,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 00:54:14,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 00:54:14,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (1/1) ... [2021-08-13 00:54:14,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 00:54:14,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 00:54:14,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 00:54:14,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 00:54:14,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (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 [2021-08-13 00:54:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 00:54:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 00:54:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 00:54:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 00:54:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 00:54:14,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 00:54:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 00:54:14,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 00:54:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 00:54:14,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 00:54:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-13 00:54:14,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-13 00:54:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 00:54:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 00:54:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 00:54:14,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 00:54:14,313 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 00:54:14,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 00:54:14,628 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 00:54:14,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:54:14 BoogieIcfgContainer [2021-08-13 00:54:14,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 00:54:14,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 00:54:14,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 00:54:14,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 00:54:14,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 12:54:13" (1/3) ... [2021-08-13 00:54:14,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84d1be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:54:14, skipping insertion in model container [2021-08-13 00:54:14,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:54:14" (2/3) ... [2021-08-13 00:54:14,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84d1be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:54:14, skipping insertion in model container [2021-08-13 00:54:14,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:54:14" (3/3) ... [2021-08-13 00:54:14,634 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2021-08-13 00:54:14,638 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 00:54:14,638 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 00:54:14,639 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 00:54:14,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,658 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,659 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,660 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,663 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,663 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,663 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,663 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,667 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,667 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,669 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,669 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 00:54:14,670 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 00:54:14,684 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 00:54:14,697 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 00:54:14,697 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 00:54:14,697 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 00:54:14,697 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 00:54:14,697 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 00:54:14,697 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 00:54:14,697 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 00:54:14,697 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 00:54:14,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 97 transitions, 214 flow [2021-08-13 00:54:14,730 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-08-13 00:54:14,731 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:54:14,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2021-08-13 00:54:14,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 97 transitions, 214 flow [2021-08-13 00:54:14,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 79 transitions, 170 flow [2021-08-13 00:54:14,749 INFO L129 PetriNetUnfolder]: 1/78 cut-off events. [2021-08-13 00:54:14,749 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:54:14,750 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:14,750 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:14,750 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:14,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:14,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-08-13 00:54:14,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:14,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902915567] [2021-08-13 00:54:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:15,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:15,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:15,170 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 00:54:15,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 00:54:15,205 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:54:15,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:54:15,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:15,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:15,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:15,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:15,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902915567] [2021-08-13 00:54:15,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902915567] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:15,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:15,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:54:15,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863597418] [2021-08-13 00:54:15,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:54:15,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:15,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:54:15,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:54:15,291 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2021-08-13 00:54:15,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 170 flow. Second operand has 7 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) [2021-08-13 00:54:15,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:15,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2021-08-13 00:54:15,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:15,708 INFO L129 PetriNetUnfolder]: 823/1767 cut-off events. [2021-08-13 00:54:15,708 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 00:54:15,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3048 conditions, 1767 events. 823/1767 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11731 event pairs, 89 based on Foata normal form. 62/1762 useless extension candidates. Maximal degree in co-relation 3014. Up to 405 conditions per place. [2021-08-13 00:54:15,719 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 21 selfloop transitions, 8 changer transitions 56/147 dead transitions. [2021-08-13 00:54:15,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 147 transitions, 476 flow [2021-08-13 00:54:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:54:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:54:15,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1092 transitions. [2021-08-13 00:54:15,730 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.865979381443299 [2021-08-13 00:54:15,731 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1092 transitions. [2021-08-13 00:54:15,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1092 transitions. [2021-08-13 00:54:15,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:15,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1092 transitions. [2021-08-13 00:54:15,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 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) [2021-08-13 00:54:15,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:15,743 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:15,744 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 12 predicate places. [2021-08-13 00:54:15,744 INFO L482 AbstractCegarLoop]: Abstraction has has 103 places, 147 transitions, 476 flow [2021-08-13 00:54:15,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-08-13 00:54:15,745 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:15,745 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:15,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 00:54:15,745 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:15,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:15,745 INFO L82 PathProgramCache]: Analyzing trace with hash 296761689, now seen corresponding path program 1 times [2021-08-13 00:54:15,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:15,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064018155] [2021-08-13 00:54:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:15,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:15,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:15,794 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 00:54:15,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 00:54:15,802 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:54:15,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:54:15,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:15,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:15,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:15,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:15,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:15,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064018155] [2021-08-13 00:54:15,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064018155] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:15,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:15,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:54:15,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752845654] [2021-08-13 00:54:15,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:54:15,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:15,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:54:15,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:54:15,832 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2021-08-13 00:54:15,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 147 transitions, 476 flow. Second operand has 7 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) [2021-08-13 00:54:15,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:15,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2021-08-13 00:54:15,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:16,179 INFO L129 PetriNetUnfolder]: 1086/2380 cut-off events. [2021-08-13 00:54:16,180 INFO L130 PetriNetUnfolder]: For 79/2473 co-relation queries the response was YES. [2021-08-13 00:54:16,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5867 conditions, 2380 events. 1086/2380 cut-off events. For 79/2473 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 17314 event pairs, 2 based on Foata normal form. 44/2361 useless extension candidates. Maximal degree in co-relation 5827. Up to 527 conditions per place. [2021-08-13 00:54:16,191 INFO L132 encePairwiseOnDemand]: 85/97 looper letters, 28 selfloop transitions, 15 changer transitions 234/339 dead transitions. [2021-08-13 00:54:16,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 339 transitions, 1798 flow [2021-08-13 00:54:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:54:16,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:54:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1101 transitions. [2021-08-13 00:54:16,193 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.873116574147502 [2021-08-13 00:54:16,193 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1101 transitions. [2021-08-13 00:54:16,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1101 transitions. [2021-08-13 00:54:16,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:16,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1101 transitions. [2021-08-13 00:54:16,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.6923076923077) internal successors, (1101), 13 states have internal predecessors, (1101), 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) [2021-08-13 00:54:16,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:16,198 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:16,199 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 24 predicate places. [2021-08-13 00:54:16,199 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 339 transitions, 1798 flow [2021-08-13 00:54:16,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-08-13 00:54:16,199 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:16,199 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:16,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 00:54:16,199 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:16,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:16,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1902203416, now seen corresponding path program 1 times [2021-08-13 00:54:16,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:16,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567399718] [2021-08-13 00:54:16,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:16,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:16,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:16,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:16,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:16,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:16,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:16,292 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 00:54:16,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 00:54:16,307 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:54:16,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:54:16,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:16,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:16,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:16,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:16,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:16,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:16,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:16,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567399718] [2021-08-13 00:54:16,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567399718] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:16,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:16,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 00:54:16,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116748557] [2021-08-13 00:54:16,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 00:54:16,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:16,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 00:54:16,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 00:54:16,349 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2021-08-13 00:54:16,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 339 transitions, 1798 flow. Second operand has 8 states, 8 states have (on average 78.5) internal successors, (628), 8 states have internal predecessors, (628), 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) [2021-08-13 00:54:16,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:16,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2021-08-13 00:54:16,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:16,869 INFO L129 PetriNetUnfolder]: 1409/3283 cut-off events. [2021-08-13 00:54:16,869 INFO L130 PetriNetUnfolder]: For 420/13363 co-relation queries the response was YES. [2021-08-13 00:54:16,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10379 conditions, 3283 events. 1409/3283 cut-off events. For 420/13363 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 27268 event pairs, 0 based on Foata normal form. 45/3260 useless extension candidates. Maximal degree in co-relation 10333. Up to 718 conditions per place. [2021-08-13 00:54:16,884 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 31 selfloop transitions, 18 changer transitions 666/777 dead transitions. [2021-08-13 00:54:16,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 777 transitions, 5856 flow [2021-08-13 00:54:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 00:54:16,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 00:54:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1428 transitions. [2021-08-13 00:54:16,887 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.865979381443299 [2021-08-13 00:54:16,887 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1428 transitions. [2021-08-13 00:54:16,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1428 transitions. [2021-08-13 00:54:16,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:16,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1428 transitions. [2021-08-13 00:54:16,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 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) [2021-08-13 00:54:16,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 97.0) internal successors, (1746), 18 states have internal predecessors, (1746), 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) [2021-08-13 00:54:16,892 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 97.0) internal successors, (1746), 18 states have internal predecessors, (1746), 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) [2021-08-13 00:54:16,893 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 40 predicate places. [2021-08-13 00:54:16,893 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 777 transitions, 5856 flow [2021-08-13 00:54:16,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 78.5) internal successors, (628), 8 states have internal predecessors, (628), 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) [2021-08-13 00:54:16,893 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:16,893 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:16,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 00:54:16,893 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:16,895 INFO L82 PathProgramCache]: Analyzing trace with hash 646876279, now seen corresponding path program 1 times [2021-08-13 00:54:16,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:16,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279201580] [2021-08-13 00:54:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:17,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:17,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:17,012 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 00:54:17,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 00:54:17,026 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:54:17,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:54:17,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:17,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:17,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:17,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:17,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279201580] [2021-08-13 00:54:17,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279201580] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:17,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:17,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:54:17,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46453028] [2021-08-13 00:54:17,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:54:17,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:17,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:54:17,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:54:17,058 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2021-08-13 00:54:17,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 777 transitions, 5856 flow. Second operand has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 7 states have internal predecessors, (552), 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) [2021-08-13 00:54:17,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:17,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2021-08-13 00:54:17,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:17,724 INFO L129 PetriNetUnfolder]: 2113/5176 cut-off events. [2021-08-13 00:54:17,724 INFO L130 PetriNetUnfolder]: For 1125/33341 co-relation queries the response was YES. [2021-08-13 00:54:17,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19585 conditions, 5176 events. 2113/5176 cut-off events. For 1125/33341 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 50187 event pairs, 0 based on Foata normal form. 46/5179 useless extension candidates. Maximal degree in co-relation 19533. Up to 996 conditions per place. [2021-08-13 00:54:17,743 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 37 selfloop transitions, 24 changer transitions 1498/1621 dead transitions. [2021-08-13 00:54:17,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 1621 transitions, 15726 flow [2021-08-13 00:54:17,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:54:17,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:54:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1089 transitions. [2021-08-13 00:54:17,745 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8636003172085647 [2021-08-13 00:54:17,745 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1089 transitions. [2021-08-13 00:54:17,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1089 transitions. [2021-08-13 00:54:17,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:17,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1089 transitions. [2021-08-13 00:54:17,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 83.76923076923077) internal successors, (1089), 13 states have internal predecessors, (1089), 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) [2021-08-13 00:54:17,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:17,750 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:17,750 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 52 predicate places. [2021-08-13 00:54:17,750 INFO L482 AbstractCegarLoop]: Abstraction has has 143 places, 1621 transitions, 15726 flow [2021-08-13 00:54:17,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 7 states have internal predecessors, (552), 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) [2021-08-13 00:54:17,750 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:17,750 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:17,750 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 00:54:17,750 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:17,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1601927937, now seen corresponding path program 1 times [2021-08-13 00:54:17,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:17,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137939580] [2021-08-13 00:54:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:17,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:17,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:17,784 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 00:54:17,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 00:54:17,790 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:54:17,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:54:17,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:17,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:17,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:17,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:17,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:17,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137939580] [2021-08-13 00:54:17,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137939580] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:17,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:17,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:54:17,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545125054] [2021-08-13 00:54:17,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:54:17,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:17,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:54:17,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:54:17,816 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2021-08-13 00:54:17,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 1621 transitions, 15726 flow. Second operand has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 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) [2021-08-13 00:54:17,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:17,817 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2021-08-13 00:54:17,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:18,875 INFO L129 PetriNetUnfolder]: 2350/6524 cut-off events. [2021-08-13 00:54:18,875 INFO L130 PetriNetUnfolder]: For 2549/75707 co-relation queries the response was YES. [2021-08-13 00:54:18,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27802 conditions, 6524 events. 2350/6524 cut-off events. For 2549/75707 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 71730 event pairs, 0 based on Foata normal form. 122/6605 useless extension candidates. Maximal degree in co-relation 27744. Up to 1375 conditions per place. [2021-08-13 00:54:18,896 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 48 selfloop transitions, 21 changer transitions 1961/2092 dead transitions. [2021-08-13 00:54:18,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 2092 transitions, 24496 flow [2021-08-13 00:54:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:54:18,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:54:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1093 transitions. [2021-08-13 00:54:18,899 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8667724028548771 [2021-08-13 00:54:18,899 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1093 transitions. [2021-08-13 00:54:18,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1093 transitions. [2021-08-13 00:54:18,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:18,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1093 transitions. [2021-08-13 00:54:18,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.07692307692308) internal successors, (1093), 13 states have internal predecessors, (1093), 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) [2021-08-13 00:54:18,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:18,903 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:18,903 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 64 predicate places. [2021-08-13 00:54:18,903 INFO L482 AbstractCegarLoop]: Abstraction has has 155 places, 2092 transitions, 24496 flow [2021-08-13 00:54:18,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 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) [2021-08-13 00:54:18,904 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:18,904 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:18,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 00:54:18,904 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:18,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:18,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1734275778, now seen corresponding path program 1 times [2021-08-13 00:54:18,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:18,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484268643] [2021-08-13 00:54:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:18,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:18,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:18,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:18,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:18,939 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 00:54:18,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 00:54:18,947 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:54:18,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:54:18,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:18,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:18,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:18,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:18,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:18,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:18,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484268643] [2021-08-13 00:54:18,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484268643] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:18,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:18,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:54:18,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811518669] [2021-08-13 00:54:18,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:54:18,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:18,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:54:18,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:54:18,977 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2021-08-13 00:54:18,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 2092 transitions, 24496 flow. Second operand has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 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) [2021-08-13 00:54:18,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:18,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2021-08-13 00:54:18,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:20,410 INFO L129 PetriNetUnfolder]: 2440/6983 cut-off events. [2021-08-13 00:54:20,411 INFO L130 PetriNetUnfolder]: For 4715/118558 co-relation queries the response was YES. [2021-08-13 00:54:20,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34722 conditions, 6983 events. 2440/6983 cut-off events. For 4715/118558 co-relation queries the response was YES. Maximal size of possible extension queue 882. Compared 79684 event pairs, 0 based on Foata normal form. 139/7082 useless extension candidates. Maximal degree in co-relation 34658. Up to 1536 conditions per place. [2021-08-13 00:54:20,434 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 46 selfloop transitions, 21 changer transitions 2302/2431 dead transitions. [2021-08-13 00:54:20,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 2431 transitions, 33302 flow [2021-08-13 00:54:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:54:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:54:20,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1093 transitions. [2021-08-13 00:54:20,438 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8667724028548771 [2021-08-13 00:54:20,438 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1093 transitions. [2021-08-13 00:54:20,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1093 transitions. [2021-08-13 00:54:20,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:20,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1093 transitions. [2021-08-13 00:54:20,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.07692307692308) internal successors, (1093), 13 states have internal predecessors, (1093), 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) [2021-08-13 00:54:20,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:20,442 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:20,442 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 76 predicate places. [2021-08-13 00:54:20,442 INFO L482 AbstractCegarLoop]: Abstraction has has 167 places, 2431 transitions, 33302 flow [2021-08-13 00:54:20,443 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 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) [2021-08-13 00:54:20,443 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:20,443 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:20,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 00:54:20,443 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:20,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:20,443 INFO L82 PathProgramCache]: Analyzing trace with hash -510748292, now seen corresponding path program 1 times [2021-08-13 00:54:20,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:20,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620075436] [2021-08-13 00:54:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:20,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:20,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:20,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:20,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:20,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:20,484 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 00:54:20,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 00:54:20,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:20,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:20,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:20,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:20,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:20,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:20,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:20,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620075436] [2021-08-13 00:54:20,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620075436] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:20,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:20,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:54:20,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847960443] [2021-08-13 00:54:20,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:54:20,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:20,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:54:20,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:54:20,513 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 97 [2021-08-13 00:54:20,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 2431 transitions, 33302 flow. Second operand has 7 states, 7 states have (on average 83.42857142857143) internal successors, (584), 7 states have internal predecessors, (584), 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) [2021-08-13 00:54:20,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:20,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 97 [2021-08-13 00:54:20,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:22,806 INFO L129 PetriNetUnfolder]: 3018/9163 cut-off events. [2021-08-13 00:54:22,806 INFO L130 PetriNetUnfolder]: For 16178/174839 co-relation queries the response was YES. [2021-08-13 00:54:22,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49285 conditions, 9163 events. 3018/9163 cut-off events. For 16178/174839 co-relation queries the response was YES. Maximal size of possible extension queue 1227. Compared 113460 event pairs, 0 based on Foata normal form. 133/9251 useless extension candidates. Maximal degree in co-relation 49217. Up to 1840 conditions per place. [2021-08-13 00:54:22,835 INFO L132 encePairwiseOnDemand]: 88/97 looper letters, 22 selfloop transitions, 10 changer transitions 2767/2875 dead transitions. [2021-08-13 00:54:22,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 2875 transitions, 43634 flow [2021-08-13 00:54:22,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:54:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:54:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1118 transitions. [2021-08-13 00:54:22,837 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8865979381443299 [2021-08-13 00:54:22,837 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1118 transitions. [2021-08-13 00:54:22,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1118 transitions. [2021-08-13 00:54:22,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:22,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1118 transitions. [2021-08-13 00:54:22,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 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) [2021-08-13 00:54:22,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:22,841 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:22,841 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 88 predicate places. [2021-08-13 00:54:22,841 INFO L482 AbstractCegarLoop]: Abstraction has has 179 places, 2875 transitions, 43634 flow [2021-08-13 00:54:22,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 83.42857142857143) internal successors, (584), 7 states have internal predecessors, (584), 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) [2021-08-13 00:54:22,842 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:22,842 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:22,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 00:54:22,842 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:22,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1032531566, now seen corresponding path program 2 times [2021-08-13 00:54:22,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:22,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585584772] [2021-08-13 00:54:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:22,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:22,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:22,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:22,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:22,874 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 00:54:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 00:54:22,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:22,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:54:22,891 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 00:54:22,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:22,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:22,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:22,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:22,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585584772] [2021-08-13 00:54:22,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585584772] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:22,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:22,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 00:54:22,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968796390] [2021-08-13 00:54:22,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 00:54:22,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:22,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 00:54:22,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 00:54:22,899 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 97 [2021-08-13 00:54:22,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 2875 transitions, 43634 flow. Second operand has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2021-08-13 00:54:22,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:22,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 97 [2021-08-13 00:54:22,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:34,722 INFO L129 PetriNetUnfolder]: 16287/37612 cut-off events. [2021-08-13 00:54:34,722 INFO L130 PetriNetUnfolder]: For 27319/60303 co-relation queries the response was YES. [2021-08-13 00:54:34,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139458 conditions, 37612 events. 16287/37612 cut-off events. For 27319/60303 co-relation queries the response was YES. Maximal size of possible extension queue 3275. Compared 488356 event pairs, 1111 based on Foata normal form. 399/35095 useless extension candidates. Maximal degree in co-relation 139387. Up to 10502 conditions per place. [2021-08-13 00:54:34,969 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 29 selfloop transitions, 20 changer transitions 1853/2365 dead transitions. [2021-08-13 00:54:34,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 2365 transitions, 35480 flow [2021-08-13 00:54:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 00:54:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 00:54:34,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 871 transitions. [2021-08-13 00:54:34,971 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8979381443298969 [2021-08-13 00:54:34,971 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 871 transitions. [2021-08-13 00:54:34,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 871 transitions. [2021-08-13 00:54:34,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:34,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 871 transitions. [2021-08-13 00:54:34,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.1) internal successors, (871), 10 states have internal predecessors, (871), 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) [2021-08-13 00:54:34,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 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) [2021-08-13 00:54:34,974 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 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) [2021-08-13 00:54:34,974 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 97 predicate places. [2021-08-13 00:54:34,974 INFO L482 AbstractCegarLoop]: Abstraction has has 188 places, 2365 transitions, 35480 flow [2021-08-13 00:54:34,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2021-08-13 00:54:34,974 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:34,975 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:34,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 00:54:34,975 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:34,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:34,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2035015366, now seen corresponding path program 1 times [2021-08-13 00:54:34,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:34,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109448788] [2021-08-13 00:54:34,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:35,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:35,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:35,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:35,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:35,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:35,007 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 00:54:35,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 00:54:35,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:35,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:54:35,024 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 00:54:35,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:35,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:35,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:35,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:35,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:35,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109448788] [2021-08-13 00:54:35,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109448788] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:35,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:35,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 00:54:35,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464431156] [2021-08-13 00:54:35,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 00:54:35,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:35,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 00:54:35,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 00:54:35,033 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 97 [2021-08-13 00:54:35,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 2365 transitions, 35480 flow. Second operand has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 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) [2021-08-13 00:54:35,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:35,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 97 [2021-08-13 00:54:35,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:43,328 INFO L129 PetriNetUnfolder]: 12961/27697 cut-off events. [2021-08-13 00:54:43,328 INFO L130 PetriNetUnfolder]: For 18045/51845 co-relation queries the response was YES. [2021-08-13 00:54:43,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99736 conditions, 27697 events. 12961/27697 cut-off events. For 18045/51845 co-relation queries the response was YES. Maximal size of possible extension queue 3121. Compared 328483 event pairs, 146 based on Foata normal form. 1852/27389 useless extension candidates. Maximal degree in co-relation 99662. Up to 9454 conditions per place. [2021-08-13 00:54:43,510 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 52 selfloop transitions, 54 changer transitions 1076/1375 dead transitions. [2021-08-13 00:54:43,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 1375 transitions, 19744 flow [2021-08-13 00:54:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 00:54:43,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 00:54:43,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1134 transitions. [2021-08-13 00:54:43,512 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8992862807295797 [2021-08-13 00:54:43,513 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1134 transitions. [2021-08-13 00:54:43,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1134 transitions. [2021-08-13 00:54:43,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:43,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1134 transitions. [2021-08-13 00:54:43,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.23076923076923) internal successors, (1134), 13 states have internal predecessors, (1134), 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) [2021-08-13 00:54:43,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:43,517 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2021-08-13 00:54:43,517 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 109 predicate places. [2021-08-13 00:54:43,517 INFO L482 AbstractCegarLoop]: Abstraction has has 200 places, 1375 transitions, 19744 flow [2021-08-13 00:54:43,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 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) [2021-08-13 00:54:43,517 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:43,518 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:43,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 00:54:43,518 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:43,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:43,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1200986347, now seen corresponding path program 1 times [2021-08-13 00:54:43,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:43,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64944747] [2021-08-13 00:54:43,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:43,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:43,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:43,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:43,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:43,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:43,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:43,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:43,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:43,553 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 00:54:43,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 00:54:43,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:43,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:54:43,570 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 00:54:43,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:43,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:43,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:43,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:43,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64944747] [2021-08-13 00:54:43,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64944747] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:43,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:43,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 00:54:43,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334103514] [2021-08-13 00:54:43,578 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 00:54:43,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:43,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 00:54:43,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 00:54:43,579 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 97 [2021-08-13 00:54:43,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 1375 transitions, 19744 flow. Second operand has 8 states, 8 states have (on average 83.125) internal successors, (665), 8 states have internal predecessors, (665), 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) [2021-08-13 00:54:43,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:43,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 97 [2021-08-13 00:54:43,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:43,813 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-08-13 00:54:48,969 INFO L129 PetriNetUnfolder]: 11395/24028 cut-off events. [2021-08-13 00:54:48,970 INFO L130 PetriNetUnfolder]: For 12092/57213 co-relation queries the response was YES. [2021-08-13 00:54:49,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88529 conditions, 24028 events. 11395/24028 cut-off events. For 12092/57213 co-relation queries the response was YES. Maximal size of possible extension queue 3222. Compared 282613 event pairs, 0 based on Foata normal form. 2592/24763 useless extension candidates. Maximal degree in co-relation 88452. Up to 8922 conditions per place. [2021-08-13 00:54:49,090 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 27 selfloop transitions, 106 changer transitions 541/776 dead transitions. [2021-08-13 00:54:49,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 776 transitions, 10056 flow [2021-08-13 00:54:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 00:54:49,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 00:54:49,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1397 transitions. [2021-08-13 00:54:49,093 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9001288659793815 [2021-08-13 00:54:49,093 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1397 transitions. [2021-08-13 00:54:49,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1397 transitions. [2021-08-13 00:54:49,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:49,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1397 transitions. [2021-08-13 00:54:49,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 87.3125) internal successors, (1397), 16 states have internal predecessors, (1397), 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) [2021-08-13 00:54:49,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 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) [2021-08-13 00:54:49,100 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 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) [2021-08-13 00:54:49,100 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 115 predicate places. [2021-08-13 00:54:49,100 INFO L482 AbstractCegarLoop]: Abstraction has has 206 places, 776 transitions, 10056 flow [2021-08-13 00:54:49,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 83.125) internal successors, (665), 8 states have internal predecessors, (665), 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) [2021-08-13 00:54:49,101 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 00:54:49,101 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 00:54:49,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 00:54:49,101 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 00:54:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 00:54:49,117 INFO L82 PathProgramCache]: Analyzing trace with hash -902008340, now seen corresponding path program 1 times [2021-08-13 00:54:49,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 00:54:49,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84814978] [2021-08-13 00:54:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 00:54:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 00:54:49,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:49,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:49,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:49,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:49,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:49,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:49,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:49,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:49,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:49,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 00:54:49,183 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 00:54:49,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 00:54:49,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:49,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 00:54:49,203 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 00:54:49,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 00:54:49,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 00:54:49,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 00:54:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 00:54:49,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 00:54:49,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84814978] [2021-08-13 00:54:49,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84814978] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 00:54:49,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 00:54:49,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 00:54:49,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751690072] [2021-08-13 00:54:49,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 00:54:49,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 00:54:49,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 00:54:49,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-13 00:54:49,213 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 97 [2021-08-13 00:54:49,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 776 transitions, 10056 flow. Second operand has 9 states, 9 states have (on average 83.11111111111111) internal successors, (748), 9 states have internal predecessors, (748), 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) [2021-08-13 00:54:49,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 00:54:49,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 97 [2021-08-13 00:54:49,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 00:54:52,929 INFO L129 PetriNetUnfolder]: 11087/22936 cut-off events. [2021-08-13 00:54:52,929 INFO L130 PetriNetUnfolder]: For 12874/63728 co-relation queries the response was YES. [2021-08-13 00:54:53,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98643 conditions, 22936 events. 11087/22936 cut-off events. For 12874/63728 co-relation queries the response was YES. Maximal size of possible extension queue 3236. Compared 269667 event pairs, 0 based on Foata normal form. 2708/23902 useless extension candidates. Maximal degree in co-relation 98563. Up to 8703 conditions per place. [2021-08-13 00:54:53,035 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 0 selfloop transitions, 0 changer transitions 475/475 dead transitions. [2021-08-13 00:54:53,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 475 transitions, 5554 flow [2021-08-13 00:54:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-13 00:54:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-08-13 00:54:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1640 transitions. [2021-08-13 00:54:53,038 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8898534997287032 [2021-08-13 00:54:53,038 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1640 transitions. [2021-08-13 00:54:53,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1640 transitions. [2021-08-13 00:54:53,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 00:54:53,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1640 transitions. [2021-08-13 00:54:53,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 86.3157894736842) internal successors, (1640), 19 states have internal predecessors, (1640), 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) [2021-08-13 00:54:53,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 97.0) internal successors, (1940), 20 states have internal predecessors, (1940), 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) [2021-08-13 00:54:53,043 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 97.0) internal successors, (1940), 20 states have internal predecessors, (1940), 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) [2021-08-13 00:54:53,043 INFO L348 CegarLoopForPetriNet]: 91 programPoint places, 104 predicate places. [2021-08-13 00:54:53,043 INFO L482 AbstractCegarLoop]: Abstraction has has 195 places, 475 transitions, 5554 flow [2021-08-13 00:54:53,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 83.11111111111111) internal successors, (748), 9 states have internal predecessors, (748), 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) [2021-08-13 00:54:53,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown