/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-lit/sssc12.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:05:56,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:05:56,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:05:56,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:05:56,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:05:56,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:05:56,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:05:56,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:05:56,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:05:56,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:05:56,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:05:56,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:05:56,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:05:56,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:05:56,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:05:56,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:05:56,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:05:56,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:05:56,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:05:56,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:05:56,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:05:56,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:05:56,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:05:56,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:05:56,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:05:56,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:05:56,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:05:56,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:05:56,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:05:56,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:05:56,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:05:56,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:05:56,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:05:56,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:05:56,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:05:56,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:05:56,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:05:56,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:05:56,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:05:56,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:05:56,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:05:56,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:05:56,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:05:56,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:05:56,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:05:56,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:05:56,878 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:05:56,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:05:56,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:05:56,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:05:56,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:05:56,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:05:56,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:05:56,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:05:56,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:05:56,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:05:56,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:05:56,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:05:56,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:05:56,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:05:56,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:05:56,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:05:56,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:05:56,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:05:56,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:05:56,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:05:56,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:05:56,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:05:56,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:05:56,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:05:56,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:05:56,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:05:57,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:05:57,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:05:57,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:05:57,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:05:57,225 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:05:57,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/sssc12.i [2020-10-21 22:05:57,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028d8ae2b/54ed9475becd4025a48953161c2b538b/FLAG4955898b5 [2020-10-21 22:05:57,928 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:05:57,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i [2020-10-21 22:05:57,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028d8ae2b/54ed9475becd4025a48953161c2b538b/FLAG4955898b5 [2020-10-21 22:05:58,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028d8ae2b/54ed9475becd4025a48953161c2b538b [2020-10-21 22:05:58,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:05:58,121 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:05:58,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:58,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:05:58,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:05:58,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:58,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f92650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58, skipping insertion in model container [2020-10-21 22:05:58,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:58,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:05:58,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:05:58,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:58,729 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:05:58,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:58,966 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:05:58,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58 WrapperNode [2020-10-21 22:05:58,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:58,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:58,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:05:58,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:05:58,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:59,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:05:59,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:05:59,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:05:59,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (1/1) ... [2020-10-21 22:05:59,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:05:59,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:05:59,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:05:59,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:05:59,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (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 [2020-10-21 22:05:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:05:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-10-21 22:05:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-10-21 22:05:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:05:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:05:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:05:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:05:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-21 22:05:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:05:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:05:59,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:05:59,155 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:05:59,649 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:05:59,649 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-21 22:05:59,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:59 BoogieIcfgContainer [2020-10-21 22:05:59,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:05:59,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:05:59,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:05:59,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:05:59,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:05:58" (1/3) ... [2020-10-21 22:05:59,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b781ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:59, skipping insertion in model container [2020-10-21 22:05:59,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:58" (2/3) ... [2020-10-21 22:05:59,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b781ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:59, skipping insertion in model container [2020-10-21 22:05:59,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:59" (3/3) ... [2020-10-21 22:05:59,663 INFO L111 eAbstractionObserver]: Analyzing ICFG sssc12.i [2020-10-21 22:05:59,677 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:05:59,677 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:05:59,686 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:05:59,687 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:05:59,715 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,716 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,716 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,716 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,716 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,717 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,717 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,717 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,718 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,718 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,718 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,719 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,719 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,719 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,719 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,720 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,720 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,720 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,720 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,721 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,721 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,721 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,721 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,722 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,722 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,722 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,722 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,723 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,723 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,723 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,723 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,724 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,724 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,724 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,725 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,729 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,729 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,730 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,730 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,730 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,730 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,731 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,731 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,732 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:59,734 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:05:59,767 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 22:05:59,791 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:05:59,791 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:05:59,791 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:05:59,792 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:05:59,792 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:05:59,792 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:05:59,792 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:05:59,792 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:05:59,806 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:05:59,809 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 70 transitions, 145 flow [2020-10-21 22:05:59,813 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 70 transitions, 145 flow [2020-10-21 22:05:59,815 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 70 transitions, 145 flow [2020-10-21 22:05:59,861 INFO L129 PetriNetUnfolder]: 8/79 cut-off events. [2020-10-21 22:05:59,861 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:05:59,867 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 8/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 41. Up to 4 conditions per place. [2020-10-21 22:05:59,869 INFO L116 LiptonReduction]: Number of co-enabled transitions 682 [2020-10-21 22:06:01,684 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-21 22:06:02,133 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-21 22:06:02,268 INFO L131 LiptonReduction]: Checked pairs total: 591 [2020-10-21 22:06:02,268 INFO L133 LiptonReduction]: Total number of compositions: 81 [2020-10-21 22:06:02,275 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions, 25 flow [2020-10-21 22:06:02,282 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 24 states. [2020-10-21 22:06:02,284 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-21 22:06:02,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 22:06:02,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:02,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 22:06:02,291 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:02,297 INFO L82 PathProgramCache]: Analyzing trace with hash 334706271, now seen corresponding path program 1 times [2020-10-21 22:06:02,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:02,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461965033] [2020-10-21 22:06:02,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:02,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461965033] [2020-10-21 22:06:02,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:02,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:02,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5591428] [2020-10-21 22:06:02,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:06:02,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:02,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:06:02,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:02,592 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-10-21 22:06:02,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:02,637 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2020-10-21 22:06:02,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:06:02,639 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-21 22:06:02,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:02,650 INFO L225 Difference]: With dead ends: 27 [2020-10-21 22:06:02,650 INFO L226 Difference]: Without dead ends: 27 [2020-10-21 22:06:02,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-21 22:06:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2020-10-21 22:06:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-21 22:06:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 42 transitions. [2020-10-21 22:06:02,711 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 42 transitions. Word has length 5 [2020-10-21 22:06:02,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:02,711 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 42 transitions. [2020-10-21 22:06:02,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:06:02,712 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 42 transitions. [2020-10-21 22:06:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:06:02,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:02,714 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:06:02,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:06:02,714 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:02,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:02,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1785795409, now seen corresponding path program 1 times [2020-10-21 22:06:02,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:02,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245353752] [2020-10-21 22:06:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:06:02,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:06:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:06:02,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:06:02,784 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:06:02,784 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:06:02,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:06:02,786 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 22:06:02,788 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:06:02,788 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:06:02,796 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,797 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,797 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,797 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,797 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,798 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,798 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,798 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,798 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,798 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,799 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,799 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,799 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,799 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,799 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,800 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,800 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,800 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,800 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,800 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,800 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,801 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,801 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,801 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,801 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,802 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,802 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,802 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,802 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,802 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,803 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,803 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,803 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,803 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,803 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,804 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,804 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,804 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,804 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,805 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,805 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,805 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,805 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,805 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,806 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,806 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,806 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,806 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,806 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,808 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,808 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,808 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,808 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,808 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,808 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,809 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,809 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,809 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,809 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,809 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,810 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,810 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,810 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,810 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,811 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,811 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,811 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,811 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,812 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,812 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,812 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,812 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,812 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,813 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,813 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,813 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,813 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,815 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,816 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,816 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,816 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,816 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,816 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,817 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,817 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,817 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,817 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,817 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,817 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:02,819 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:06:02,819 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:06:02,819 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:06:02,820 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:06:02,820 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:06:02,820 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:06:02,820 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:06:02,820 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:06:02,820 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:06:02,820 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:06:02,823 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:06:02,823 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 102 transitions, 216 flow [2020-10-21 22:06:02,824 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 102 transitions, 216 flow [2020-10-21 22:06:02,824 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 95 places, 102 transitions, 216 flow [2020-10-21 22:06:02,873 INFO L129 PetriNetUnfolder]: 14/121 cut-off events. [2020-10-21 22:06:02,873 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-21 22:06:02,875 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 14/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 254 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 80. Up to 6 conditions per place. [2020-10-21 22:06:02,881 INFO L116 LiptonReduction]: Number of co-enabled transitions 3348 [2020-10-21 22:06:04,898 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-21 22:06:05,240 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-21 22:06:05,353 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-21 22:06:05,360 INFO L131 LiptonReduction]: Checked pairs total: 7224 [2020-10-21 22:06:05,360 INFO L133 LiptonReduction]: Total number of compositions: 102 [2020-10-21 22:06:05,361 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 66 flow [2020-10-21 22:06:05,381 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 445 states. [2020-10-21 22:06:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2020-10-21 22:06:05,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 22:06:05,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:05,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:05,383 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:05,384 INFO L82 PathProgramCache]: Analyzing trace with hash 449406121, now seen corresponding path program 1 times [2020-10-21 22:06:05,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:05,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326151901] [2020-10-21 22:06:05,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:05,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326151901] [2020-10-21 22:06:05,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:05,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:05,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322336259] [2020-10-21 22:06:05,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:05,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:05,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:05,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:05,442 INFO L87 Difference]: Start difference. First operand 445 states. Second operand 3 states. [2020-10-21 22:06:05,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:05,492 INFO L93 Difference]: Finished difference Result 471 states and 1311 transitions. [2020-10-21 22:06:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:05,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-21 22:06:05,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:05,504 INFO L225 Difference]: With dead ends: 471 [2020-10-21 22:06:05,504 INFO L226 Difference]: Without dead ends: 471 [2020-10-21 22:06:05,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-10-21 22:06:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 432. [2020-10-21 22:06:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-10-21 22:06:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 1241 transitions. [2020-10-21 22:06:05,575 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 1241 transitions. Word has length 7 [2020-10-21 22:06:05,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:05,576 INFO L481 AbstractCegarLoop]: Abstraction has 432 states and 1241 transitions. [2020-10-21 22:06:05,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:05,576 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 1241 transitions. [2020-10-21 22:06:05,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:06:05,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:05,578 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-21 22:06:05,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:06:05,578 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:05,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:05,579 INFO L82 PathProgramCache]: Analyzing trace with hash 523694405, now seen corresponding path program 1 times [2020-10-21 22:06:05,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:05,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470669518] [2020-10-21 22:06:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:06:05,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:06:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:06:05,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:06:05,621 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:06:05,621 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:06:05,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:06:05,622 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 22:06:05,622 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:06:05,624 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 22:06:05,632 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,633 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,633 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,633 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,634 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,634 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,634 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,634 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,636 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,636 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,636 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,636 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,637 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,638 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,638 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,638 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,639 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,639 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,640 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,641 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,641 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,641 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,642 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,642 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,642 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,642 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,642 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,642 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,643 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,643 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,643 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,643 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,643 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,644 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,644 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,644 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,644 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,645 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,645 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,646 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,646 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,646 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,646 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,647 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,647 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,648 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,648 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,648 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,648 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,648 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,648 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,649 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,649 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,649 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,649 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,649 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,649 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,650 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,650 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,650 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,650 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,650 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,650 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,650 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,651 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,651 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,651 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,651 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,651 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,651 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,652 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,652 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,653 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,653 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,658 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,659 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,659 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,659 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,659 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,659 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,660 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,660 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,662 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,663 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,663 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,663 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,663 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,664 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:05,666 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:06:05,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 22:06:05,666 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:06:05,666 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:06:05,666 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:06:05,667 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:06:05,667 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:06:05,667 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:06:05,667 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:06:05,667 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:06:05,670 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:06:05,670 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 134 transitions, 289 flow [2020-10-21 22:06:05,670 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 134 transitions, 289 flow [2020-10-21 22:06:05,670 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 124 places, 134 transitions, 289 flow [2020-10-21 22:06:05,702 INFO L129 PetriNetUnfolder]: 20/163 cut-off events. [2020-10-21 22:06:05,703 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-21 22:06:05,705 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 163 events. 20/163 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 428 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-10-21 22:06:05,713 INFO L116 LiptonReduction]: Number of co-enabled transitions 7998 [2020-10-21 22:06:08,326 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-10-21 22:06:08,706 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-21 22:06:08,830 INFO L131 LiptonReduction]: Checked pairs total: 17628 [2020-10-21 22:06:08,830 INFO L133 LiptonReduction]: Total number of compositions: 137 [2020-10-21 22:06:08,831 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 38 transitions, 97 flow [2020-10-21 22:06:09,045 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4009 states. [2020-10-21 22:06:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states. [2020-10-21 22:06:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 22:06:09,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:09,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:09,047 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:09,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:09,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1468268979, now seen corresponding path program 1 times [2020-10-21 22:06:09,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:09,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039698532] [2020-10-21 22:06:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:09,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039698532] [2020-10-21 22:06:09,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:09,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:09,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811411066] [2020-10-21 22:06:09,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:06:09,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:09,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:06:09,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:09,143 INFO L87 Difference]: Start difference. First operand 4009 states. Second operand 4 states. [2020-10-21 22:06:09,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:09,286 INFO L93 Difference]: Finished difference Result 4251 states and 16881 transitions. [2020-10-21 22:06:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:06:09,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-21 22:06:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:09,339 INFO L225 Difference]: With dead ends: 4251 [2020-10-21 22:06:09,339 INFO L226 Difference]: Without dead ends: 4251 [2020-10-21 22:06:09,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2020-10-21 22:06:09,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 3897. [2020-10-21 22:06:09,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3897 states. [2020-10-21 22:06:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 15858 transitions. [2020-10-21 22:06:09,572 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 15858 transitions. Word has length 7 [2020-10-21 22:06:09,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:09,573 INFO L481 AbstractCegarLoop]: Abstraction has 3897 states and 15858 transitions. [2020-10-21 22:06:09,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:06:09,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 15858 transitions. [2020-10-21 22:06:09,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:06:09,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:09,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:09,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:06:09,575 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:09,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:09,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1728300207, now seen corresponding path program 1 times [2020-10-21 22:06:09,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:09,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182137753] [2020-10-21 22:06:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:09,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182137753] [2020-10-21 22:06:09,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:09,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:06:09,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535177475] [2020-10-21 22:06:09,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:09,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:09,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:09,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:09,613 INFO L87 Difference]: Start difference. First operand 3897 states and 15858 transitions. Second operand 3 states. [2020-10-21 22:06:09,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:09,672 INFO L93 Difference]: Finished difference Result 4251 states and 16527 transitions. [2020-10-21 22:06:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:09,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:06:09,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:09,711 INFO L225 Difference]: With dead ends: 4251 [2020-10-21 22:06:09,711 INFO L226 Difference]: Without dead ends: 4251 [2020-10-21 22:06:09,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:09,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2020-10-21 22:06:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 3897. [2020-10-21 22:06:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3897 states. [2020-10-21 22:06:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 15504 transitions. [2020-10-21 22:06:09,949 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 15504 transitions. Word has length 8 [2020-10-21 22:06:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:09,950 INFO L481 AbstractCegarLoop]: Abstraction has 3897 states and 15504 transitions. [2020-10-21 22:06:09,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 15504 transitions. [2020-10-21 22:06:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:06:09,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:09,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:09,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:06:09,952 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:09,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:09,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1219547123, now seen corresponding path program 1 times [2020-10-21 22:06:09,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:09,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107627779] [2020-10-21 22:06:09,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:09,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107627779] [2020-10-21 22:06:09,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:09,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:09,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099295533] [2020-10-21 22:06:09,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:06:09,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:09,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:06:09,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:09,993 INFO L87 Difference]: Start difference. First operand 3897 states and 15504 transitions. Second operand 4 states. [2020-10-21 22:06:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:10,199 INFO L93 Difference]: Finished difference Result 8263 states and 32465 transitions. [2020-10-21 22:06:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:06:10,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-21 22:06:10,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:10,256 INFO L225 Difference]: With dead ends: 8263 [2020-10-21 22:06:10,256 INFO L226 Difference]: Without dead ends: 8263 [2020-10-21 22:06:10,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:06:10,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8263 states. [2020-10-21 22:06:10,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8263 to 5667. [2020-10-21 22:06:10,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5667 states. [2020-10-21 22:06:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5667 states to 5667 states and 22919 transitions. [2020-10-21 22:06:10,492 INFO L78 Accepts]: Start accepts. Automaton has 5667 states and 22919 transitions. Word has length 10 [2020-10-21 22:06:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:10,492 INFO L481 AbstractCegarLoop]: Abstraction has 5667 states and 22919 transitions. [2020-10-21 22:06:10,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:06:10,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5667 states and 22919 transitions. [2020-10-21 22:06:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:06:10,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:10,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:10,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:06:10,494 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:10,495 INFO L82 PathProgramCache]: Analyzing trace with hash -150489993, now seen corresponding path program 1 times [2020-10-21 22:06:10,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:10,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106934432] [2020-10-21 22:06:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:06:10,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106934432] [2020-10-21 22:06:10,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:10,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:10,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900979837] [2020-10-21 22:06:10,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:06:10,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:10,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:06:10,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:10,548 INFO L87 Difference]: Start difference. First operand 5667 states and 22919 transitions. Second operand 4 states. [2020-10-21 22:06:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:10,745 INFO L93 Difference]: Finished difference Result 7242 states and 29126 transitions. [2020-10-21 22:06:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:06:10,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-21 22:06:10,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:10,779 INFO L225 Difference]: With dead ends: 7242 [2020-10-21 22:06:10,779 INFO L226 Difference]: Without dead ends: 7242 [2020-10-21 22:06:10,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:10,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2020-10-21 22:06:10,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 6678. [2020-10-21 22:06:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6678 states. [2020-10-21 22:06:11,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6678 states to 6678 states and 27460 transitions. [2020-10-21 22:06:11,020 INFO L78 Accepts]: Start accepts. Automaton has 6678 states and 27460 transitions. Word has length 10 [2020-10-21 22:06:11,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:11,022 INFO L481 AbstractCegarLoop]: Abstraction has 6678 states and 27460 transitions. [2020-10-21 22:06:11,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:06:11,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6678 states and 27460 transitions. [2020-10-21 22:06:11,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:06:11,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:11,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:11,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:06:11,024 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:11,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:11,024 INFO L82 PathProgramCache]: Analyzing trace with hash -848743151, now seen corresponding path program 1 times [2020-10-21 22:06:11,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:11,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969910292] [2020-10-21 22:06:11,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:11,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969910292] [2020-10-21 22:06:11,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556956966] [2020-10-21 22:06:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:06:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:11,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 22:06:11,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:06:11,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:11,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:06:11,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-21 22:06:11,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014839720] [2020-10-21 22:06:11,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:06:11,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:11,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:06:11,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:06:11,229 INFO L87 Difference]: Start difference. First operand 6678 states and 27460 transitions. Second operand 8 states. [2020-10-21 22:06:12,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:12,183 INFO L93 Difference]: Finished difference Result 16269 states and 63219 transitions. [2020-10-21 22:06:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-21 22:06:12,183 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-21 22:06:12,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:12,253 INFO L225 Difference]: With dead ends: 16269 [2020-10-21 22:06:12,253 INFO L226 Difference]: Without dead ends: 16269 [2020-10-21 22:06:12,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:06:12,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16269 states. [2020-10-21 22:06:12,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16269 to 9114. [2020-10-21 22:06:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9114 states. [2020-10-21 22:06:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9114 states to 9114 states and 37336 transitions. [2020-10-21 22:06:12,635 INFO L78 Accepts]: Start accepts. Automaton has 9114 states and 37336 transitions. Word has length 11 [2020-10-21 22:06:12,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:12,635 INFO L481 AbstractCegarLoop]: Abstraction has 9114 states and 37336 transitions. [2020-10-21 22:06:12,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:06:12,635 INFO L276 IsEmpty]: Start isEmpty. Operand 9114 states and 37336 transitions. [2020-10-21 22:06:12,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:06:12,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:12,636 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:12,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-21 22:06:12,851 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:12,852 INFO L82 PathProgramCache]: Analyzing trace with hash -370221148, now seen corresponding path program 1 times [2020-10-21 22:06:12,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:12,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073998920] [2020-10-21 22:06:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:06:12,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073998920] [2020-10-21 22:06:12,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:12,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:06:12,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362929114] [2020-10-21 22:06:12,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:12,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:12,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:12,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:12,889 INFO L87 Difference]: Start difference. First operand 9114 states and 37336 transitions. Second operand 3 states. [2020-10-21 22:06:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:12,960 INFO L93 Difference]: Finished difference Result 9380 states and 37060 transitions. [2020-10-21 22:06:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:12,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-21 22:06:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:13,002 INFO L225 Difference]: With dead ends: 9380 [2020-10-21 22:06:13,004 INFO L226 Difference]: Without dead ends: 9380 [2020-10-21 22:06:13,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2020-10-21 22:06:13,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 8836. [2020-10-21 22:06:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8836 states. [2020-10-21 22:06:13,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8836 states to 8836 states and 35424 transitions. [2020-10-21 22:06:13,463 INFO L78 Accepts]: Start accepts. Automaton has 8836 states and 35424 transitions. Word has length 11 [2020-10-21 22:06:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:13,463 INFO L481 AbstractCegarLoop]: Abstraction has 8836 states and 35424 transitions. [2020-10-21 22:06:13,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 8836 states and 35424 transitions. [2020-10-21 22:06:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:06:13,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:13,465 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:13,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 22:06:13,465 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:13,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:13,465 INFO L82 PathProgramCache]: Analyzing trace with hash -541232205, now seen corresponding path program 2 times [2020-10-21 22:06:13,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:13,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291024764] [2020-10-21 22:06:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:13,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291024764] [2020-10-21 22:06:13,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292804403] [2020-10-21 22:06:13,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:06:13,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 22:06:13,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:06:13,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-21 22:06:13,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:06:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:13,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:06:13,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-21 22:06:13,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711313658] [2020-10-21 22:06:13,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:06:13,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:13,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:06:13,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:06:13,664 INFO L87 Difference]: Start difference. First operand 8836 states and 35424 transitions. Second operand 9 states. [2020-10-21 22:06:14,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:14,350 INFO L93 Difference]: Finished difference Result 16887 states and 64217 transitions. [2020-10-21 22:06:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:06:14,350 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-10-21 22:06:14,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:14,420 INFO L225 Difference]: With dead ends: 16887 [2020-10-21 22:06:14,420 INFO L226 Difference]: Without dead ends: 16887 [2020-10-21 22:06:14,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-21 22:06:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16887 states. [2020-10-21 22:06:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16887 to 9325. [2020-10-21 22:06:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9325 states. [2020-10-21 22:06:14,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9325 states to 9325 states and 37793 transitions. [2020-10-21 22:06:14,964 INFO L78 Accepts]: Start accepts. Automaton has 9325 states and 37793 transitions. Word has length 12 [2020-10-21 22:06:14,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:14,965 INFO L481 AbstractCegarLoop]: Abstraction has 9325 states and 37793 transitions. [2020-10-21 22:06:14,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:06:14,965 INFO L276 IsEmpty]: Start isEmpty. Operand 9325 states and 37793 transitions. [2020-10-21 22:06:14,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:06:14,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:14,966 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-21 22:06:15,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:06:15,167 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:15,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:15,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2039538265, now seen corresponding path program 1 times [2020-10-21 22:06:15,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:15,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950900503] [2020-10-21 22:06:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:06:15,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:06:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:06:15,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:06:15,192 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:06:15,192 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:06:15,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-21 22:06:15,193 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 22:06:15,193 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:06:15,193 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 22:06:15,208 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,208 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,208 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,208 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,208 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,208 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,209 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,209 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,209 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,209 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,209 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,209 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,209 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,210 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,210 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,210 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,210 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,210 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,210 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,210 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,211 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,212 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,212 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,212 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,212 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,212 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,212 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,212 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,213 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,213 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,213 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,213 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,213 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,213 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,214 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,214 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,214 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,214 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,214 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,214 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,214 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,215 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,215 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,215 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,215 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,215 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,215 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,215 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,216 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,217 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,217 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,217 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,217 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,217 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,217 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,217 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,218 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,218 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,219 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,219 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,219 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,219 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,219 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,219 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,220 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,220 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,225 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,225 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,225 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,226 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,226 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,226 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,226 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,226 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,226 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,226 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,227 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,227 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,227 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,227 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,227 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,227 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,227 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,228 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,232 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,232 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,232 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,232 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,232 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,233 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,233 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,233 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,233 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,233 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,233 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,233 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,234 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,234 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,235 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,236 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,236 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,236 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,236 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,236 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,237 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,237 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,237 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,238 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,238 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,239 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,240 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,240 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,241 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,241 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,242 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,242 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,243 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,243 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,244 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,244 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,244 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,244 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,246 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,246 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,246 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,246 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,246 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,246 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,246 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,247 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,247 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,248 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,248 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,248 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:06:15,249 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:06:15,249 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 22:06:15,249 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:06:15,250 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:06:15,250 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:06:15,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:06:15,250 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:06:15,250 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:06:15,250 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:06:15,250 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:06:15,252 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:06:15,254 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 166 transitions, 364 flow [2020-10-21 22:06:15,255 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 166 transitions, 364 flow [2020-10-21 22:06:15,255 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 153 places, 166 transitions, 364 flow [2020-10-21 22:06:15,318 INFO L129 PetriNetUnfolder]: 26/205 cut-off events. [2020-10-21 22:06:15,318 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-21 22:06:15,325 INFO L80 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 205 events. 26/205 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 633 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 171. Up to 10 conditions per place. [2020-10-21 22:06:15,338 INFO L116 LiptonReduction]: Number of co-enabled transitions 14632 [2020-10-21 22:06:16,539 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-10-21 22:06:17,824 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-10-21 22:06:18,379 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-21 22:06:18,837 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-21 22:06:19,145 INFO L131 LiptonReduction]: Checked pairs total: 35592 [2020-10-21 22:06:19,145 INFO L133 LiptonReduction]: Total number of compositions: 165 [2020-10-21 22:06:19,146 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 49 transitions, 130 flow [2020-10-21 22:06:23,227 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36085 states. [2020-10-21 22:06:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 36085 states. [2020-10-21 22:06:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 22:06:23,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:23,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:23,228 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:23,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:23,228 INFO L82 PathProgramCache]: Analyzing trace with hash 567543326, now seen corresponding path program 1 times [2020-10-21 22:06:23,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:23,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065149635] [2020-10-21 22:06:23,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:23,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065149635] [2020-10-21 22:06:23,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:23,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:23,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380020811] [2020-10-21 22:06:23,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:23,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:23,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:23,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:23,256 INFO L87 Difference]: Start difference. First operand 36085 states. Second operand 3 states. [2020-10-21 22:06:23,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:23,562 INFO L93 Difference]: Finished difference Result 38271 states and 191271 transitions. [2020-10-21 22:06:23,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:23,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-21 22:06:23,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:23,719 INFO L225 Difference]: With dead ends: 38271 [2020-10-21 22:06:23,719 INFO L226 Difference]: Without dead ends: 38271 [2020-10-21 22:06:23,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38271 states. [2020-10-21 22:06:25,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38271 to 35082. [2020-10-21 22:06:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35082 states. [2020-10-21 22:06:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35082 states to 35082 states and 178521 transitions. [2020-10-21 22:06:25,800 INFO L78 Accepts]: Start accepts. Automaton has 35082 states and 178521 transitions. Word has length 7 [2020-10-21 22:06:25,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:25,800 INFO L481 AbstractCegarLoop]: Abstraction has 35082 states and 178521 transitions. [2020-10-21 22:06:25,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 35082 states and 178521 transitions. [2020-10-21 22:06:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:06:25,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:25,801 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:25,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-21 22:06:25,801 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:25,801 INFO L82 PathProgramCache]: Analyzing trace with hash 920687577, now seen corresponding path program 1 times [2020-10-21 22:06:25,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:25,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570950079] [2020-10-21 22:06:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:06:25,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570950079] [2020-10-21 22:06:25,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:25,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:06:25,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230317721] [2020-10-21 22:06:25,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:06:25,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:25,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:06:25,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:25,838 INFO L87 Difference]: Start difference. First operand 35082 states and 178521 transitions. Second operand 4 states. [2020-10-21 22:06:26,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:26,210 INFO L93 Difference]: Finished difference Result 46764 states and 236706 transitions. [2020-10-21 22:06:26,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:06:26,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-21 22:06:26,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:26,376 INFO L225 Difference]: With dead ends: 46764 [2020-10-21 22:06:26,376 INFO L226 Difference]: Without dead ends: 46764 [2020-10-21 22:06:26,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:06:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46764 states. [2020-10-21 22:06:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46764 to 42870. [2020-10-21 22:06:30,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42870 states. [2020-10-21 22:06:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42870 states to 42870 states and 221205 transitions. [2020-10-21 22:06:30,946 INFO L78 Accepts]: Start accepts. Automaton has 42870 states and 221205 transitions. Word has length 10 [2020-10-21 22:06:30,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:30,946 INFO L481 AbstractCegarLoop]: Abstraction has 42870 states and 221205 transitions. [2020-10-21 22:06:30,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:06:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 42870 states and 221205 transitions. [2020-10-21 22:06:30,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:06:30,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:30,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:30,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-21 22:06:30,947 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:30,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:30,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1639288969, now seen corresponding path program 1 times [2020-10-21 22:06:30,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:30,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190908916] [2020-10-21 22:06:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:30,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190908916] [2020-10-21 22:06:30,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:30,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:06:30,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630262766] [2020-10-21 22:06:30,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:06:30,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:30,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:06:30,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:06:30,996 INFO L87 Difference]: Start difference. First operand 42870 states and 221205 transitions. Second operand 5 states. [2020-10-21 22:06:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:35,888 INFO L93 Difference]: Finished difference Result 147538 states and 741000 transitions. [2020-10-21 22:06:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:06:35,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-21 22:06:35,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:36,425 INFO L225 Difference]: With dead ends: 147538 [2020-10-21 22:06:36,425 INFO L226 Difference]: Without dead ends: 147538 [2020-10-21 22:06:36,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:06:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147538 states. [2020-10-21 22:06:39,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147538 to 79133. [2020-10-21 22:06:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79133 states. [2020-10-21 22:06:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79133 states to 79133 states and 404905 transitions. [2020-10-21 22:06:40,228 INFO L78 Accepts]: Start accepts. Automaton has 79133 states and 404905 transitions. Word has length 10 [2020-10-21 22:06:40,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:40,228 INFO L481 AbstractCegarLoop]: Abstraction has 79133 states and 404905 transitions. [2020-10-21 22:06:40,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:06:40,228 INFO L276 IsEmpty]: Start isEmpty. Operand 79133 states and 404905 transitions. [2020-10-21 22:06:40,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:06:40,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:40,229 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:40,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-21 22:06:40,230 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:40,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:40,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1523454643, now seen corresponding path program 1 times [2020-10-21 22:06:40,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:40,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092918183] [2020-10-21 22:06:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:06:40,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092918183] [2020-10-21 22:06:40,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:06:40,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:06:40,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741270887] [2020-10-21 22:06:40,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:06:40,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:40,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:06:40,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:40,274 INFO L87 Difference]: Start difference. First operand 79133 states and 404905 transitions. Second operand 3 states. [2020-10-21 22:06:41,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:41,914 INFO L93 Difference]: Finished difference Result 82247 states and 407640 transitions. [2020-10-21 22:06:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:06:41,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-21 22:06:41,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:42,221 INFO L225 Difference]: With dead ends: 82247 [2020-10-21 22:06:42,222 INFO L226 Difference]: Without dead ends: 82247 [2020-10-21 22:06:42,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:06:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82247 states. [2020-10-21 22:06:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82247 to 76855. [2020-10-21 22:06:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76855 states. [2020-10-21 22:06:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76855 states to 76855 states and 386073 transitions. [2020-10-21 22:06:48,424 INFO L78 Accepts]: Start accepts. Automaton has 76855 states and 386073 transitions. Word has length 11 [2020-10-21 22:06:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:48,424 INFO L481 AbstractCegarLoop]: Abstraction has 76855 states and 386073 transitions. [2020-10-21 22:06:48,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:06:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 76855 states and 386073 transitions. [2020-10-21 22:06:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:06:48,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:48,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:48,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-21 22:06:48,426 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:48,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:48,426 INFO L82 PathProgramCache]: Analyzing trace with hash 721651363, now seen corresponding path program 1 times [2020-10-21 22:06:48,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:48,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978144601] [2020-10-21 22:06:48,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:48,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978144601] [2020-10-21 22:06:48,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121240638] [2020-10-21 22:06:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:06:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:48,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 22:06:48,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:06:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:48,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:06:48,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-21 22:06:48,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349135941] [2020-10-21 22:06:48,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:06:48,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:48,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:06:48,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:06:48,538 INFO L87 Difference]: Start difference. First operand 76855 states and 386073 transitions. Second operand 5 states. [2020-10-21 22:06:50,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:06:50,546 INFO L93 Difference]: Finished difference Result 156575 states and 767493 transitions. [2020-10-21 22:06:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:06:50,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-21 22:06:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:06:51,104 INFO L225 Difference]: With dead ends: 156575 [2020-10-21 22:06:51,104 INFO L226 Difference]: Without dead ends: 156575 [2020-10-21 22:06:51,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:06:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156575 states. [2020-10-21 22:06:59,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156575 to 106668. [2020-10-21 22:06:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106668 states. [2020-10-21 22:06:59,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106668 states to 106668 states and 541606 transitions. [2020-10-21 22:06:59,636 INFO L78 Accepts]: Start accepts. Automaton has 106668 states and 541606 transitions. Word has length 11 [2020-10-21 22:06:59,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:06:59,636 INFO L481 AbstractCegarLoop]: Abstraction has 106668 states and 541606 transitions. [2020-10-21 22:06:59,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:06:59,636 INFO L276 IsEmpty]: Start isEmpty. Operand 106668 states and 541606 transitions. [2020-10-21 22:06:59,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:06:59,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:06:59,638 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:06:59,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-21 22:06:59,844 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:06:59,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:06:59,845 INFO L82 PathProgramCache]: Analyzing trace with hash 896357623, now seen corresponding path program 2 times [2020-10-21 22:06:59,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:06:59,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71969084] [2020-10-21 22:06:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:06:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:06:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:59,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71969084] [2020-10-21 22:06:59,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474505257] [2020-10-21 22:06:59,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:06:59,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 22:06:59,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:06:59,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-21 22:06:59,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:06:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:06:59,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:06:59,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-21 22:06:59,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069238440] [2020-10-21 22:06:59,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:06:59,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:06:59,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:06:59,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:06:59,968 INFO L87 Difference]: Start difference. First operand 106668 states and 541606 transitions. Second operand 6 states. [2020-10-21 22:07:02,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:02,476 INFO L93 Difference]: Finished difference Result 159236 states and 782186 transitions. [2020-10-21 22:07:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:07:02,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-21 22:07:02,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:03,059 INFO L225 Difference]: With dead ends: 159236 [2020-10-21 22:07:03,059 INFO L226 Difference]: Without dead ends: 159236 [2020-10-21 22:07:03,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:07:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159236 states. [2020-10-21 22:07:12,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159236 to 111759. [2020-10-21 22:07:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111759 states. [2020-10-21 22:07:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111759 states to 111759 states and 571639 transitions. [2020-10-21 22:07:13,385 INFO L78 Accepts]: Start accepts. Automaton has 111759 states and 571639 transitions. Word has length 12 [2020-10-21 22:07:13,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:13,385 INFO L481 AbstractCegarLoop]: Abstraction has 111759 states and 571639 transitions. [2020-10-21 22:07:13,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:07:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 111759 states and 571639 transitions. [2020-10-21 22:07:13,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:07:13,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:13,386 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:13,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-21 22:07:13,587 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:13,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:13,588 INFO L82 PathProgramCache]: Analyzing trace with hash 507079361, now seen corresponding path program 1 times [2020-10-21 22:07:13,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:13,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441405217] [2020-10-21 22:07:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:07:13,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441405217] [2020-10-21 22:07:13,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:13,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:07:13,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454000135] [2020-10-21 22:07:13,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:07:13,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:13,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:07:13,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:07:13,637 INFO L87 Difference]: Start difference. First operand 111759 states and 571639 transitions. Second operand 5 states. [2020-10-21 22:07:20,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:20,403 INFO L93 Difference]: Finished difference Result 287473 states and 1467861 transitions. [2020-10-21 22:07:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:07:20,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 22:07:20,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:22,320 INFO L225 Difference]: With dead ends: 287473 [2020-10-21 22:07:22,320 INFO L226 Difference]: Without dead ends: 287473 [2020-10-21 22:07:22,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:07:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287473 states. [2020-10-21 22:07:34,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287473 to 160290. [2020-10-21 22:07:34,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160290 states. [2020-10-21 22:07:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160290 states to 160290 states and 834121 transitions. [2020-10-21 22:07:34,899 INFO L78 Accepts]: Start accepts. Automaton has 160290 states and 834121 transitions. Word has length 13 [2020-10-21 22:07:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:34,899 INFO L481 AbstractCegarLoop]: Abstraction has 160290 states and 834121 transitions. [2020-10-21 22:07:34,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:07:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 160290 states and 834121 transitions. [2020-10-21 22:07:34,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:07:34,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:34,901 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:34,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-21 22:07:34,901 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:34,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:34,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1833594043, now seen corresponding path program 1 times [2020-10-21 22:07:34,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:34,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628087128] [2020-10-21 22:07:34,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-21 22:07:34,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628087128] [2020-10-21 22:07:34,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:07:34,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:07:34,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379956139] [2020-10-21 22:07:34,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:07:34,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:34,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:07:34,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:07:34,935 INFO L87 Difference]: Start difference. First operand 160290 states and 834121 transitions. Second operand 3 states. [2020-10-21 22:07:37,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:07:37,731 INFO L93 Difference]: Finished difference Result 195864 states and 1004823 transitions. [2020-10-21 22:07:37,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:07:37,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 22:07:37,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:07:46,717 INFO L225 Difference]: With dead ends: 195864 [2020-10-21 22:07:46,718 INFO L226 Difference]: Without dead ends: 195864 [2020-10-21 22:07:46,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:07:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195864 states. [2020-10-21 22:07:52,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195864 to 183359. [2020-10-21 22:07:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183359 states. [2020-10-21 22:07:53,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183359 states to 183359 states and 952306 transitions. [2020-10-21 22:07:53,358 INFO L78 Accepts]: Start accepts. Automaton has 183359 states and 952306 transitions. Word has length 13 [2020-10-21 22:07:53,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:07:53,358 INFO L481 AbstractCegarLoop]: Abstraction has 183359 states and 952306 transitions. [2020-10-21 22:07:53,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:07:53,359 INFO L276 IsEmpty]: Start isEmpty. Operand 183359 states and 952306 transitions. [2020-10-21 22:07:53,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:07:53,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:07:53,360 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:07:53,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-21 22:07:53,360 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:07:53,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:07:53,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2017284387, now seen corresponding path program 3 times [2020-10-21 22:07:53,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:07:53,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834219680] [2020-10-21 22:07:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:07:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:07:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:07:53,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834219680] [2020-10-21 22:07:53,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860097400] [2020-10-21 22:07:53,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:07:53,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-21 22:07:53,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:07:53,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 22:07:53,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:07:53,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-21 22:07:53,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 22:07:53,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2020-10-21 22:07:53,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466512827] [2020-10-21 22:07:53,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:07:53,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:07:53,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:07:53,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:07:53,540 INFO L87 Difference]: Start difference. First operand 183359 states and 952306 transitions. Second operand 5 states. [2020-10-21 22:08:02,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:08:02,200 INFO L93 Difference]: Finished difference Result 319948 states and 1653397 transitions. [2020-10-21 22:08:02,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:08:02,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 22:08:02,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:08:10,803 INFO L225 Difference]: With dead ends: 319948 [2020-10-21 22:08:10,803 INFO L226 Difference]: Without dead ends: 319948 [2020-10-21 22:08:10,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:08:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319948 states. [2020-10-21 22:08:18,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319948 to 200826. [2020-10-21 22:08:18,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200826 states. [2020-10-21 22:08:20,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200826 states to 200826 states and 1039664 transitions. [2020-10-21 22:08:20,376 INFO L78 Accepts]: Start accepts. Automaton has 200826 states and 1039664 transitions. Word has length 13 [2020-10-21 22:08:20,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:08:20,376 INFO L481 AbstractCegarLoop]: Abstraction has 200826 states and 1039664 transitions. [2020-10-21 22:08:20,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:08:20,376 INFO L276 IsEmpty]: Start isEmpty. Operand 200826 states and 1039664 transitions. [2020-10-21 22:08:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 22:08:20,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:08:20,378 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:08:20,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-10-21 22:08:20,592 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:08:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:08:20,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1460407451, now seen corresponding path program 1 times [2020-10-21 22:08:20,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:08:20,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943800055] [2020-10-21 22:08:20,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:08:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:08:20,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:08:20,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943800055] [2020-10-21 22:08:20,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504448565] [2020-10-21 22:08:20,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:08:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:08:20,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 22:08:20,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:08:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:08:20,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:08:20,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-21 22:08:20,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913274873] [2020-10-21 22:08:20,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:08:20,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:08:20,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:08:20,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:08:20,707 INFO L87 Difference]: Start difference. First operand 200826 states and 1039664 transitions. Second operand 5 states. [2020-10-21 22:08:30,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:08:30,801 INFO L93 Difference]: Finished difference Result 345997 states and 1776480 transitions. [2020-10-21 22:08:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:08:30,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 22:08:30,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:08:32,134 INFO L225 Difference]: With dead ends: 345997 [2020-10-21 22:08:32,134 INFO L226 Difference]: Without dead ends: 345997 [2020-10-21 22:08:32,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:08:40,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345997 states. [2020-10-21 22:08:47,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345997 to 250906. [2020-10-21 22:08:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250906 states. [2020-10-21 22:08:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250906 states to 250906 states and 1328200 transitions. [2020-10-21 22:08:49,764 INFO L78 Accepts]: Start accepts. Automaton has 250906 states and 1328200 transitions. Word has length 14 [2020-10-21 22:08:49,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:08:49,764 INFO L481 AbstractCegarLoop]: Abstraction has 250906 states and 1328200 transitions. [2020-10-21 22:08:49,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:08:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 250906 states and 1328200 transitions. [2020-10-21 22:08:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:08:49,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:08:49,768 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:08:49,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:08:49,976 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:08:49,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:08:49,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1972010817, now seen corresponding path program 2 times [2020-10-21 22:08:49,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:08:49,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298392913] [2020-10-21 22:08:49,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:08:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:08:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:08:50,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298392913] [2020-10-21 22:08:50,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190459196] [2020-10-21 22:08:50,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:08:50,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 22:08:50,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:08:50,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-21 22:08:50,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:08:50,108 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 22:08:50,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:08:50,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-21 22:08:50,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981675438] [2020-10-21 22:08:50,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:08:50,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:08:50,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:08:50,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:08:50,109 INFO L87 Difference]: Start difference. First operand 250906 states and 1328200 transitions. Second operand 6 states. [2020-10-21 22:09:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:09:01,725 INFO L93 Difference]: Finished difference Result 382245 states and 1961640 transitions. [2020-10-21 22:09:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:09:01,726 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-21 22:09:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2020-10-21 22:09:11,448 INFO L225 Difference]: With dead ends: 382245 [2020-10-21 22:09:11,449 INFO L226 Difference]: Without dead ends: 382245 [2020-10-21 22:09:11,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:09:13,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382245 states. [2020-10-21 22:09:13,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:09:13,859 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 22:09:13,863 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 22:09:13,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:09:13 BasicIcfg [2020-10-21 22:09:13,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:09:13,873 INFO L168 Benchmark]: Toolchain (without parser) took 195749.52 ms. Allocated memory was 147.3 MB in the beginning and 5.4 GB in the end (delta: 5.3 GB). Free memory was 101.3 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 3.7 GB. Max. memory is 7.1 GB. [2020-10-21 22:09:13,874 INFO L168 Benchmark]: CDTParser took 3.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-21 22:09:13,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.00 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 134.0 MB in the end (delta: -33.7 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:09:13,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.07 ms. Allocated memory is still 205.0 MB. Free memory was 134.0 MB in the beginning and 131.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:09:13,877 INFO L168 Benchmark]: Boogie Preprocessor took 33.00 ms. Allocated memory is still 205.0 MB. Free memory was 131.9 MB in the beginning and 129.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:09:13,878 INFO L168 Benchmark]: RCFGBuilder took 568.90 ms. Allocated memory is still 205.0 MB. Free memory was 129.8 MB in the beginning and 101.7 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:09:13,880 INFO L168 Benchmark]: TraceAbstraction took 194209.69 ms. Allocated memory was 205.0 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 101.7 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2020-10-21 22:09:13,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 847.00 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 134.0 MB in the end (delta: -33.7 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 80.07 ms. Allocated memory is still 205.0 MB. Free memory was 134.0 MB in the beginning and 131.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.00 ms. Allocated memory is still 205.0 MB. Free memory was 131.9 MB in the beginning and 129.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 568.90 ms. Allocated memory is still 205.0 MB. Free memory was 129.8 MB in the beginning and 101.7 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194209.69 ms. Allocated memory was 205.0 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 101.7 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 425 VarBasedMoverChecksPositive, 5 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.4s, 66 PlacesBefore, 12 PlacesAfterwards, 70 TransitionsBefore, 10 TransitionsAfterwards, 682 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 81 TotalNumberOfCompositions, 591 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2414 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 252 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 95 PlacesBefore, 28 PlacesAfterwards, 102 TransitionsBefore, 27 TransitionsAfterwards, 3348 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 19 ConcurrentYvCompositions, 8 ChoiceCompositions, 102 TotalNumberOfCompositions, 7224 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5726 VarBasedMoverChecksPositive, 114 VarBasedMoverChecksNegative, 71 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 549 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 124 PlacesBefore, 39 PlacesAfterwards, 134 TransitionsBefore, 38 TransitionsAfterwards, 7998 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 29 ConcurrentYvCompositions, 11 ChoiceCompositions, 137 TotalNumberOfCompositions, 17628 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 9338 VarBasedMoverChecksPositive, 130 VarBasedMoverChecksNegative, 73 SemBasedMoverChecksPositive, 57 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 515 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 153 PlacesBefore, 50 PlacesAfterwards, 166 TransitionsBefore, 49 TransitionsAfterwards, 14632 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 92 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 30 ConcurrentYvCompositions, 14 ChoiceCompositions, 165 TotalNumberOfCompositions, 35592 MoverChecksTotal - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 991). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 193.9s, OverallIterations: 23, TraceHistogramMax: 4, AutomataDifference: 87.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 16.4s, HoareTripleCheckerStatistics: 1580 SDtfs, 2043 SDslu, 2460 SDs, 0 SdLazy, 3346 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250906occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 86.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 551337 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 325 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 11827 SizeOfPredicates, 7 NumberOfNonLiveVariables, 807 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 27 InterpolantComputations, 14 PerfectInterpolantSequences, 34/64 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown