/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 07:02:00,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 07:02:00,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 07:02:00,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 07:02:00,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 07:02:00,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 07:02:00,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 07:02:00,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 07:02:00,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 07:02:00,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 07:02:00,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 07:02:00,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 07:02:00,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 07:02:00,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 07:02:00,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 07:02:00,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 07:02:00,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 07:02:00,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 07:02:00,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 07:02:00,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 07:02:00,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 07:02:00,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 07:02:00,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 07:02:00,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 07:02:00,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 07:02:00,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 07:02:00,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 07:02:00,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 07:02:00,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 07:02:00,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 07:02:00,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 07:02:00,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 07:02:00,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 07:02:00,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 07:02:00,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 07:02:00,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 07:02:00,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 07:02:00,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 07:02:00,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 07:02:00,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 07:02:00,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 07:02:00,263 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-RepeatedSemanticLbe.epf [2021-06-11 07:02:00,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 07:02:00,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 07:02:00,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 07:02:00,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 07:02:00,299 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 07:02:00,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 07:02:00,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 07:02:00,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 07:02:00,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 07:02:00,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 07:02:00,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 07:02:00,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 07:02:00,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 07:02:00,301 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 07:02:00,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 07:02:00,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 07:02:00,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 07:02:00,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 07:02:00,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 07:02:00,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 07:02:00,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 07:02:00,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 07:02:00,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 07:02:00,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 07:02:00,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 07:02:00,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 07:02:00,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 07:02:00,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 07:02:00,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 07:02:00,304 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 07:02:00,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 07:02:00,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 07:02:00,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 07:02:00,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 07:02:00,635 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 07:02:00,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2021-06-11 07:02:00,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f085b156c/e79e36f0dd154a64b6aa31abd1dc11d4/FLAGdde06fd51 [2021-06-11 07:02:01,247 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 07:02:01,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2021-06-11 07:02:01,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f085b156c/e79e36f0dd154a64b6aa31abd1dc11d4/FLAGdde06fd51 [2021-06-11 07:02:01,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f085b156c/e79e36f0dd154a64b6aa31abd1dc11d4 [2021-06-11 07:02:01,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 07:02:01,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 07:02:01,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 07:02:01,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 07:02:01,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 07:02:01,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:02:01" (1/1) ... [2021-06-11 07:02:01,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f178c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:01, skipping insertion in model container [2021-06-11 07:02:01,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:02:01" (1/1) ... [2021-06-11 07:02:01,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 07:02:01,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 07:02:01,896 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i[949,962] [2021-06-11 07:02:02,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:02:02,055 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 07:02:02,064 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i[949,962] [2021-06-11 07:02:02,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:02:02,140 INFO L208 MainTranslator]: Completed translation [2021-06-11 07:02:02,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02 WrapperNode [2021-06-11 07:02:02,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 07:02:02,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 07:02:02,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 07:02:02,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 07:02:02,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 07:02:02,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 07:02:02,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 07:02:02,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 07:02:02,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (1/1) ... [2021-06-11 07:02:02,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 07:02:02,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 07:02:02,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 07:02:02,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 07:02:02,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (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 [2021-06-11 07:02:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 07:02:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 07:02:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 07:02:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 07:02:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 07:02:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 07:02:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 07:02:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 07:02:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 07:02:02,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 07:02:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 07:02:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 07:02:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 07:02:02,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 07:02:02,307 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 07:02:02,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 07:02:02,653 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 07:02:02,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:02:02 BoogieIcfgContainer [2021-06-11 07:02:02,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 07:02:02,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 07:02:02,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 07:02:02,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 07:02:02,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 07:02:01" (1/3) ... [2021-06-11 07:02:02,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135e4c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:02:02, skipping insertion in model container [2021-06-11 07:02:02,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:02:02" (2/3) ... [2021-06-11 07:02:02,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135e4c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:02:02, skipping insertion in model container [2021-06-11 07:02:02,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:02:02" (3/3) ... [2021-06-11 07:02:02,664 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i [2021-06-11 07:02:02,669 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 07:02:02,672 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 07:02:02,672 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 07:02:02,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,695 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,695 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,696 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,697 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,697 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,697 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,699 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,699 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,699 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,699 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,704 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,704 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,706 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,707 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,707 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,707 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,713 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,713 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,713 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,713 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,720 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,721 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,721 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,721 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:02:02,725 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 07:02:02,737 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 07:02:02,753 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 07:02:02,753 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 07:02:02,753 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 07:02:02,754 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 07:02:02,754 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 07:02:02,754 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 07:02:02,754 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 07:02:02,754 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 07:02:02,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-06-11 07:02:02,797 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-06-11 07:02:02,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:02:02,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 07:02:02,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-06-11 07:02:02,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-06-11 07:02:02,808 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:02:02,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-06-11 07:02:02,827 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-06-11 07:02:02,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-06-11 07:02:02,859 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-06-11 07:02:02,860 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:02:02,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 07:02:02,864 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 07:02:02,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:02,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:03,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:03,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:03,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:03,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:03,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:03,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:03,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:03,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:03,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:03,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:03,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:03,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:03,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:03,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:03,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:02:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:04,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,056 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 07:02:04,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:04,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:04,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:04,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,551 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 07:02:04,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:04,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:04,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 07:02:04,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:04,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:04,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:05,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:05,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:05,556 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 07:02:05,812 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 07:02:05,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:05,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:02:05,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:05,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:02:05,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:02:05,907 INFO L163 LiptonReduction]: Checked pairs total: 1657 [2021-06-11 07:02:05,907 INFO L165 LiptonReduction]: Total number of compositions: 47 [2021-06-11 07:02:05,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3102 [2021-06-11 07:02:05,917 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-06-11 07:02:05,917 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:02:05,918 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:02:05,918 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:02:05,918 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:02:05,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:02:05,923 INFO L82 PathProgramCache]: Analyzing trace with hash -516506131, now seen corresponding path program 1 times [2021-06-11 07:02:05,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:02:05,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481005505] [2021-06-11 07:02:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:02:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:02:06,127 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 07:02:06,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:02:06,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:02:06,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481005505] [2021-06-11 07:02:06,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:02:06,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 07:02:06,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621828086] [2021-06-11 07:02:06,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 07:02:06,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:02:06,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 07:02:06,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 07:02:06,172 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 122 [2021-06-11 07:02:06,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:02:06,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 122 [2021-06-11 07:02:06,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:02:06,235 INFO L129 PetriNetUnfolder]: 46/130 cut-off events. [2021-06-11 07:02:06,235 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:02:06,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 130 events. 46/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 588 event pairs, 16 based on Foata normal form. 41/167 useless extension candidates. Maximal degree in co-relation 227. Up to 56 conditions per place. [2021-06-11 07:02:06,239 INFO L132 encePairwiseOnDemand]: 114/122 looper letters, 5 selfloop transitions, 6 changer transitions 0/21 dead transitions. [2021-06-11 07:02:06,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 73 flow [2021-06-11 07:02:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:02:06,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:02:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2021-06-11 07:02:06,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7841530054644809 [2021-06-11 07:02:06,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2021-06-11 07:02:06,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2021-06-11 07:02:06,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:02:06,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2021-06-11 07:02:06,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,275 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,277 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 287 transitions. [2021-06-11 07:02:06,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 73 flow [2021-06-11 07:02:06,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 07:02:06,280 INFO L241 Difference]: Finished difference. Result has 28 places, 21 transitions, 82 flow [2021-06-11 07:02:06,282 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2021-06-11 07:02:06,283 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2021-06-11 07:02:06,283 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:02:06,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 21 transitions, 82 flow [2021-06-11 07:02:06,284 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 21 transitions, 82 flow [2021-06-11 07:02:06,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 82 flow [2021-06-11 07:02:06,299 INFO L129 PetriNetUnfolder]: 46/128 cut-off events. [2021-06-11 07:02:06,299 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-06-11 07:02:06,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 128 events. 46/128 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 610 event pairs, 16 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 269. Up to 56 conditions per place. [2021-06-11 07:02:06,301 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 07:02:06,303 INFO L163 LiptonReduction]: Checked pairs total: 39 [2021-06-11 07:02:06,303 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:02:06,304 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-06-11 07:02:06,304 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 82 flow [2021-06-11 07:02:06,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,305 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:02:06,305 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:02:06,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 07:02:06,305 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:02:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:02:06,306 INFO L82 PathProgramCache]: Analyzing trace with hash 880353623, now seen corresponding path program 1 times [2021-06-11 07:02:06,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:02:06,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464817465] [2021-06-11 07:02:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:02:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:02:06,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:02:06,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464817465] [2021-06-11 07:02:06,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:02:06,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 07:02:06,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276961266] [2021-06-11 07:02:06,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 07:02:06,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:02:06,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 07:02:06,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 07:02:06,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 122 [2021-06-11 07:02:06,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:02:06,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 122 [2021-06-11 07:02:06,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:02:06,377 INFO L129 PetriNetUnfolder]: 24/83 cut-off events. [2021-06-11 07:02:06,377 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2021-06-11 07:02:06,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 83 events. 24/83 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 304 event pairs, 8 based on Foata normal form. 6/87 useless extension candidates. Maximal degree in co-relation 184. Up to 34 conditions per place. [2021-06-11 07:02:06,378 INFO L132 encePairwiseOnDemand]: 119/122 looper letters, 1 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2021-06-11 07:02:06,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 21 transitions, 90 flow [2021-06-11 07:02:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:02:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:02:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2021-06-11 07:02:06,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.855191256830601 [2021-06-11 07:02:06,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2021-06-11 07:02:06,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2021-06-11 07:02:06,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:02:06,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2021-06-11 07:02:06,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,387 INFO L185 Difference]: Start difference. First operand has 28 places, 21 transitions, 82 flow. Second operand 3 states and 313 transitions. [2021-06-11 07:02:06,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 21 transitions, 90 flow [2021-06-11 07:02:06,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 07:02:06,389 INFO L241 Difference]: Finished difference. Result has 29 places, 21 transitions, 81 flow [2021-06-11 07:02:06,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2021-06-11 07:02:06,389 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2021-06-11 07:02:06,390 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:02:06,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 21 transitions, 81 flow [2021-06-11 07:02:06,390 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 21 transitions, 81 flow [2021-06-11 07:02:06,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 21 transitions, 81 flow [2021-06-11 07:02:06,396 INFO L129 PetriNetUnfolder]: 24/84 cut-off events. [2021-06-11 07:02:06,396 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-06-11 07:02:06,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 84 events. 24/84 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 343 event pairs, 6 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 167. Up to 34 conditions per place. [2021-06-11 07:02:06,403 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 07:02:06,405 INFO L163 LiptonReduction]: Checked pairs total: 39 [2021-06-11 07:02:06,405 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:02:06,405 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 07:02:06,407 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 81 flow [2021-06-11 07:02:06,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,407 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:02:06,407 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:02:06,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 07:02:06,408 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:02:06,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:02:06,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1641519146, now seen corresponding path program 1 times [2021-06-11 07:02:06,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:02:06,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212748012] [2021-06-11 07:02:06,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:02:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:02:06,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,472 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-06-11 07:02:06,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 07:02:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:02:06,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212748012] [2021-06-11 07:02:06,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:02:06,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 07:02:06,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602276413] [2021-06-11 07:02:06,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:02:06,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:02:06,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:02:06,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:02:06,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 122 [2021-06-11 07:02:06,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:02:06,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 122 [2021-06-11 07:02:06,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:02:06,543 INFO L129 PetriNetUnfolder]: 98/242 cut-off events. [2021-06-11 07:02:06,544 INFO L130 PetriNetUnfolder]: For 78/98 co-relation queries the response was YES. [2021-06-11 07:02:06,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 242 events. 98/242 cut-off events. For 78/98 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1384 event pairs, 14 based on Foata normal form. 19/237 useless extension candidates. Maximal degree in co-relation 527. Up to 90 conditions per place. [2021-06-11 07:02:06,546 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 8 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2021-06-11 07:02:06,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 121 flow [2021-06-11 07:02:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 07:02:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 07:02:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2021-06-11 07:02:06,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7520491803278688 [2021-06-11 07:02:06,548 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 367 transitions. [2021-06-11 07:02:06,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 367 transitions. [2021-06-11 07:02:06,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:02:06,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 367 transitions. [2021-06-11 07:02:06,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,551 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,551 INFO L185 Difference]: Start difference. First operand has 29 places, 21 transitions, 81 flow. Second operand 4 states and 367 transitions. [2021-06-11 07:02:06,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 121 flow [2021-06-11 07:02:06,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 115 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 07:02:06,552 INFO L241 Difference]: Finished difference. Result has 32 places, 25 transitions, 113 flow [2021-06-11 07:02:06,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2021-06-11 07:02:06,553 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-06-11 07:02:06,553 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:02:06,553 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 25 transitions, 113 flow [2021-06-11 07:02:06,553 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 25 transitions, 113 flow [2021-06-11 07:02:06,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 25 transitions, 113 flow [2021-06-11 07:02:06,566 INFO L129 PetriNetUnfolder]: 72/207 cut-off events. [2021-06-11 07:02:06,567 INFO L130 PetriNetUnfolder]: For 103/120 co-relation queries the response was YES. [2021-06-11 07:02:06,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 207 events. 72/207 cut-off events. For 103/120 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1211 event pairs, 18 based on Foata normal form. 4/187 useless extension candidates. Maximal degree in co-relation 512. Up to 128 conditions per place. [2021-06-11 07:02:06,569 INFO L151 LiptonReduction]: Number of co-enabled transitions 194 [2021-06-11 07:02:06,571 INFO L163 LiptonReduction]: Checked pairs total: 32 [2021-06-11 07:02:06,571 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:02:06,571 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-06-11 07:02:06,572 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 113 flow [2021-06-11 07:02:06,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,572 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:02:06,572 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:02:06,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 07:02:06,573 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:02:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:02:06,573 INFO L82 PathProgramCache]: Analyzing trace with hash -651955276, now seen corresponding path program 1 times [2021-06-11 07:02:06,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:02:06,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727564625] [2021-06-11 07:02:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:02:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:02:06,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,613 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 07:02:06,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 07:02:06,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:02:06,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727564625] [2021-06-11 07:02:06,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:02:06,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 07:02:06,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886237085] [2021-06-11 07:02:06,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:02:06,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:02:06,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:02:06,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:02:06,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 122 [2021-06-11 07:02:06,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:02:06,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 122 [2021-06-11 07:02:06,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:02:06,674 INFO L129 PetriNetUnfolder]: 76/219 cut-off events. [2021-06-11 07:02:06,675 INFO L130 PetriNetUnfolder]: For 244/405 co-relation queries the response was YES. [2021-06-11 07:02:06,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 219 events. 76/219 cut-off events. For 244/405 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1312 event pairs, 7 based on Foata normal form. 38/234 useless extension candidates. Maximal degree in co-relation 684. Up to 133 conditions per place. [2021-06-11 07:02:06,676 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 9 selfloop transitions, 8 changer transitions 0/32 dead transitions. [2021-06-11 07:02:06,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 176 flow [2021-06-11 07:02:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:02:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:02:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 459 transitions. [2021-06-11 07:02:06,678 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7524590163934426 [2021-06-11 07:02:06,678 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 459 transitions. [2021-06-11 07:02:06,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 459 transitions. [2021-06-11 07:02:06,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:02:06,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 459 transitions. [2021-06-11 07:02:06,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,681 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,681 INFO L185 Difference]: Start difference. First operand has 32 places, 25 transitions, 113 flow. Second operand 5 states and 459 transitions. [2021-06-11 07:02:06,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 176 flow [2021-06-11 07:02:06,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 07:02:06,683 INFO L241 Difference]: Finished difference. Result has 37 places, 29 transitions, 165 flow [2021-06-11 07:02:06,684 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=165, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2021-06-11 07:02:06,684 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-06-11 07:02:06,684 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:02:06,684 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 29 transitions, 165 flow [2021-06-11 07:02:06,684 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 29 transitions, 165 flow [2021-06-11 07:02:06,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 29 transitions, 165 flow [2021-06-11 07:02:06,697 INFO L129 PetriNetUnfolder]: 73/221 cut-off events. [2021-06-11 07:02:06,698 INFO L130 PetriNetUnfolder]: For 430/498 co-relation queries the response was YES. [2021-06-11 07:02:06,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 221 events. 73/221 cut-off events. For 430/498 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1353 event pairs, 7 based on Foata normal form. 13/203 useless extension candidates. Maximal degree in co-relation 752. Up to 135 conditions per place. [2021-06-11 07:02:06,701 INFO L151 LiptonReduction]: Number of co-enabled transitions 214 [2021-06-11 07:02:06,704 INFO L163 LiptonReduction]: Checked pairs total: 34 [2021-06-11 07:02:06,705 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:02:06,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-06-11 07:02:06,706 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 165 flow [2021-06-11 07:02:06,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:02:06,706 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:02:06,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 07:02:06,706 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:02:06,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:02:06,707 INFO L82 PathProgramCache]: Analyzing trace with hash 162559909, now seen corresponding path program 1 times [2021-06-11 07:02:06,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:02:06,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289895537] [2021-06-11 07:02:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:02:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:02:06,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,745 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 07:02:06,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 07:02:06,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:02:06,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289895537] [2021-06-11 07:02:06,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:02:06,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 07:02:06,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982413207] [2021-06-11 07:02:06,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 07:02:06,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:02:06,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 07:02:06,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 07:02:06,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 122 [2021-06-11 07:02:06,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:02:06,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 122 [2021-06-11 07:02:06,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:02:06,842 INFO L129 PetriNetUnfolder]: 70/208 cut-off events. [2021-06-11 07:02:06,842 INFO L130 PetriNetUnfolder]: For 626/885 co-relation queries the response was YES. [2021-06-11 07:02:06,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 208 events. 70/208 cut-off events. For 626/885 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1235 event pairs, 6 based on Foata normal form. 51/237 useless extension candidates. Maximal degree in co-relation 841. Up to 124 conditions per place. [2021-06-11 07:02:06,844 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 4 selfloop transitions, 11 changer transitions 0/30 dead transitions. [2021-06-11 07:02:06,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 202 flow [2021-06-11 07:02:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 07:02:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 07:02:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 545 transitions. [2021-06-11 07:02:06,846 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.744535519125683 [2021-06-11 07:02:06,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 545 transitions. [2021-06-11 07:02:06,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 545 transitions. [2021-06-11 07:02:06,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:02:06,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 545 transitions. [2021-06-11 07:02:06,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,849 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,850 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 165 flow. Second operand 6 states and 545 transitions. [2021-06-11 07:02:06,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 202 flow [2021-06-11 07:02:06,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 189 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-06-11 07:02:06,853 INFO L241 Difference]: Finished difference. Result has 42 places, 30 transitions, 197 flow [2021-06-11 07:02:06,853 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=197, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2021-06-11 07:02:06,853 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2021-06-11 07:02:06,853 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:02:06,853 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 30 transitions, 197 flow [2021-06-11 07:02:06,854 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 30 transitions, 197 flow [2021-06-11 07:02:06,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 30 transitions, 197 flow [2021-06-11 07:02:06,870 INFO L129 PetriNetUnfolder]: 73/218 cut-off events. [2021-06-11 07:02:06,870 INFO L130 PetriNetUnfolder]: For 713/744 co-relation queries the response was YES. [2021-06-11 07:02:06,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 218 events. 73/218 cut-off events. For 713/744 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1378 event pairs, 6 based on Foata normal form. 2/193 useless extension candidates. Maximal degree in co-relation 813. Up to 98 conditions per place. [2021-06-11 07:02:06,873 INFO L151 LiptonReduction]: Number of co-enabled transitions 206 [2021-06-11 07:02:06,876 INFO L163 LiptonReduction]: Checked pairs total: 32 [2021-06-11 07:02:06,876 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:02:06,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-06-11 07:02:06,877 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 197 flow [2021-06-11 07:02:06,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,878 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:02:06,878 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:02:06,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 07:02:06,878 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 07:02:06,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:02:06,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1068816953, now seen corresponding path program 1 times [2021-06-11 07:02:06,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:02:06,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190945357] [2021-06-11 07:02:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:02:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:02:06,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:02:06,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:02:06,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:02:06,914 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 07:02:06,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:02:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:02:06,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190945357] [2021-06-11 07:02:06,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:02:06,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 07:02:06,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768470315] [2021-06-11 07:02:06,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:02:06,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:02:06,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:02:06,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:02:06,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 122 [2021-06-11 07:02:06,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:02:06,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 122 [2021-06-11 07:02:06,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:02:06,986 INFO L129 PetriNetUnfolder]: 97/282 cut-off events. [2021-06-11 07:02:06,986 INFO L130 PetriNetUnfolder]: For 920/987 co-relation queries the response was YES. [2021-06-11 07:02:06,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 282 events. 97/282 cut-off events. For 920/987 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1819 event pairs, 0 based on Foata normal form. 11/261 useless extension candidates. Maximal degree in co-relation 1080. Up to 109 conditions per place. [2021-06-11 07:02:06,988 INFO L132 encePairwiseOnDemand]: 114/122 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-06-11 07:02:06,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 268 flow [2021-06-11 07:02:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:02:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:02:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 460 transitions. [2021-06-11 07:02:06,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7540983606557377 [2021-06-11 07:02:06,989 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 460 transitions. [2021-06-11 07:02:06,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 460 transitions. [2021-06-11 07:02:06,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:02:06,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 460 transitions. [2021-06-11 07:02:06,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,992 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,992 INFO L185 Difference]: Start difference. First operand has 42 places, 30 transitions, 197 flow. Second operand 5 states and 460 transitions. [2021-06-11 07:02:06,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 268 flow [2021-06-11 07:02:06,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 222 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-06-11 07:02:06,997 INFO L241 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2021-06-11 07:02:06,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2021-06-11 07:02:06,997 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-06-11 07:02:06,997 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:02:06,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 0 transitions, 0 flow [2021-06-11 07:02:06,998 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 0 transitions, 0 flow [2021-06-11 07:02:06,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 07:02:06,998 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 07:02:06,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:02:06,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 07:02:06,998 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 07:02:06,998 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 07:02:06,998 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:02:06,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 07:02:06,999 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 07:02:06,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:02:06,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 07:02:07,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 07:02:07 BasicIcfg [2021-06-11 07:02:07,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 07:02:07,003 INFO L168 Benchmark]: Toolchain (without parser) took 5289.41 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 316.8 MB in the beginning and 358.1 MB in the end (delta: -41.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-11 07:02:07,004 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 335.0 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 07:02:07,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.53 ms. Allocated memory is still 354.4 MB. Free memory was 316.6 MB in the beginning and 317.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-11 07:02:07,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 354.4 MB. Free memory was 317.7 MB in the beginning and 314.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-11 07:02:07,005 INFO L168 Benchmark]: Boogie Preprocessor took 30.73 ms. Allocated memory is still 354.4 MB. Free memory was 314.5 MB in the beginning and 313.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 07:02:07,005 INFO L168 Benchmark]: RCFGBuilder took 430.33 ms. Allocated memory is still 354.4 MB. Free memory was 313.5 MB in the beginning and 290.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:02:07,005 INFO L168 Benchmark]: TraceAbstraction took 4346.85 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 290.4 MB in the beginning and 358.1 MB in the end (delta: -67.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-06-11 07:02:07,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 335.0 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 423.53 ms. Allocated memory is still 354.4 MB. Free memory was 316.6 MB in the beginning and 317.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 354.4 MB. Free memory was 317.7 MB in the beginning and 314.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.73 ms. Allocated memory is still 354.4 MB. Free memory was 314.5 MB in the beginning and 313.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 430.33 ms. Allocated memory is still 354.4 MB. Free memory was 313.5 MB in the beginning and 290.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4346.85 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 290.4 MB in the beginning and 358.1 MB in the end (delta: -67.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3080.4ms, 69 PlacesBefore, 27 PlacesAfterwards, 60 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, 1657 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 885, positive: 807, positive conditional: 0, positive unconditional: 807, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 614, positive: 570, positive conditional: 0, positive unconditional: 570, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 614, positive: 570, positive conditional: 0, positive unconditional: 570, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 614, positive: 565, positive conditional: 0, positive unconditional: 565, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 217, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 885, positive: 237, positive conditional: 0, positive unconditional: 237, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 614, unknown conditional: 0, unknown unconditional: 614] , Statistics on independence cache: Total cache size (in pairs): 1015, Positive cache size: 971, Positive conditional cache size: 0, Positive unconditional cache size: 971, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8ms, 28 PlacesBefore, 28 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1019, Positive cache size: 975, Positive conditional cache size: 0, Positive unconditional cache size: 975, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.3ms, 29 PlacesBefore, 29 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1019, Positive cache size: 975, Positive conditional cache size: 0, Positive unconditional cache size: 975, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.6ms, 32 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 194 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1019, Positive cache size: 975, Positive conditional cache size: 0, Positive unconditional cache size: 975, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.4ms, 37 PlacesBefore, 37 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1021, Positive cache size: 977, Positive conditional cache size: 0, Positive unconditional cache size: 977, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.8ms, 42 PlacesBefore, 42 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1021, Positive cache size: 977, Positive conditional cache size: 0, Positive unconditional cache size: 977, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 38 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1021, Positive cache size: 977, Positive conditional cache size: 0, Positive unconditional cache size: 977, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4250.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 444.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3160.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 10 SDslu, 15 SDs, 0 SdLazy, 64 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 102.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.9ms SsaConstructionTime, 107.9ms SatisfiabilityAnalysisTime, 291.4ms InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...