/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-ext/31_simple_loop5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 11:54:03,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 11:54:03,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 11:54:03,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 11:54:03,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 11:54:03,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 11:54:03,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 11:54:03,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 11:54:03,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 11:54:03,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 11:54:03,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 11:54:03,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 11:54:03,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 11:54:03,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 11:54:03,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 11:54:03,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 11:54:03,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 11:54:03,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 11:54:03,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 11:54:03,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 11:54:03,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 11:54:03,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 11:54:03,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 11:54:03,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 11:54:03,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 11:54:03,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 11:54:03,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 11:54:03,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 11:54:03,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 11:54:03,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 11:54:03,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 11:54:03,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 11:54:03,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 11:54:03,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 11:54:03,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 11:54:03,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 11:54:03,567 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 [2019-12-18 11:54:03,586 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 11:54:03,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 11:54:03,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 11:54:03,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 11:54:03,591 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 11:54:03,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 11:54:03,591 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 11:54:03,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 11:54:03,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 11:54:03,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 11:54:03,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 11:54:03,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 11:54:03,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 11:54:03,594 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 11:54:03,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 11:54:03,594 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 11:54:03,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 11:54:03,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 11:54:03,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 11:54:03,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 11:54:03,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 11:54:03,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 11:54:03,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 11:54:03,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 11:54:03,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 11:54:03,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 11:54:03,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 11:54:03,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 11:54:03,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 11:54:03,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 11:54:03,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 11:54:03,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 11:54:03,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 11:54:03,876 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 11:54:03,877 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 11:54:03,877 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-18 11:54:03,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c06ce0e8/4a3142ea3f46417098db82aab5c73b01/FLAGc1deed7f9 [2019-12-18 11:54:04,446 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 11:54:04,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-18 11:54:04,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c06ce0e8/4a3142ea3f46417098db82aab5c73b01/FLAGc1deed7f9 [2019-12-18 11:54:04,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c06ce0e8/4a3142ea3f46417098db82aab5c73b01 [2019-12-18 11:54:04,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 11:54:04,775 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 11:54:04,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 11:54:04,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 11:54:04,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 11:54:04,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:54:04" (1/1) ... [2019-12-18 11:54:04,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e36d046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:04, skipping insertion in model container [2019-12-18 11:54:04,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:54:04" (1/1) ... [2019-12-18 11:54:04,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 11:54:04,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 11:54:05,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:54:05,306 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 11:54:05,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:54:05,448 INFO L208 MainTranslator]: Completed translation [2019-12-18 11:54:05,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05 WrapperNode [2019-12-18 11:54:05,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 11:54:05,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 11:54:05,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 11:54:05,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 11:54:05,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 11:54:05,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 11:54:05,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 11:54:05,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 11:54:05,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (1/1) ... [2019-12-18 11:54:05,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 11:54:05,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 11:54:05,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 11:54:05,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 11:54:05,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (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 [2019-12-18 11:54:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-18 11:54:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-18 11:54:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 11:54:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 11:54:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 11:54:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 11:54:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 11:54:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 11:54:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 11:54:05,590 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 11:54:05,792 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 11:54:05,793 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 11:54:05,874 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 11:54:05,878 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 11:54:05,947 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 11:54:05,948 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-18 11:54:05,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:54:05 BoogieIcfgContainer [2019-12-18 11:54:05,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 11:54:05,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 11:54:05,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 11:54:05,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 11:54:05,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:54:04" (1/3) ... [2019-12-18 11:54:05,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297c3e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:54:05, skipping insertion in model container [2019-12-18 11:54:05,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:05" (2/3) ... [2019-12-18 11:54:05,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297c3e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:54:05, skipping insertion in model container [2019-12-18 11:54:05,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:54:05" (3/3) ... [2019-12-18 11:54:05,956 INFO L109 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2019-12-18 11:54:05,966 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 11:54:05,967 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 11:54:05,976 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 11:54:05,977 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 11:54:06,003 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,003 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,004 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,004 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,004 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,005 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,006 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,011 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,012 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,013 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,028 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,028 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:06,043 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 11:54:06,058 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:06,059 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:06,059 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:06,059 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:06,059 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:06,059 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:06,059 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:06,059 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:06,071 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 47 transitions [2019-12-18 11:54:06,073 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-18 11:54:06,110 INFO L126 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-18 11:54:06,110 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:06,121 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 8/52 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-18 11:54:06,125 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-18 11:54:06,141 INFO L126 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-18 11:54:06,142 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:06,143 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 8/52 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-18 11:54:06,146 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 684 [2019-12-18 11:54:06,147 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:06,861 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1213 [2019-12-18 11:54:06,861 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 11:54:06,866 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-18 11:54:06,884 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 206 states. [2019-12-18 11:54:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-12-18 11:54:06,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 11:54:06,894 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:06,894 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 11:54:06,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:06,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:06,902 INFO L82 PathProgramCache]: Analyzing trace with hash 197558128, now seen corresponding path program 1 times [2019-12-18 11:54:06,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:06,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663781590] [2019-12-18 11:54:06,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:07,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663781590] [2019-12-18 11:54:07,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:07,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:54:07,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095892386] [2019-12-18 11:54:07,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:07,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:07,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:07,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:07,180 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2019-12-18 11:54:07,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:07,214 INFO L93 Difference]: Finished difference Result 142 states and 378 transitions. [2019-12-18 11:54:07,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:07,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 11:54:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:07,230 INFO L225 Difference]: With dead ends: 142 [2019-12-18 11:54:07,230 INFO L226 Difference]: Without dead ends: 142 [2019-12-18 11:54:07,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:07,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-18 11:54:07,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-12-18 11:54:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-18 11:54:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 378 transitions. [2019-12-18 11:54:07,287 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 378 transitions. Word has length 5 [2019-12-18 11:54:07,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:07,288 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 378 transitions. [2019-12-18 11:54:07,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 378 transitions. [2019-12-18 11:54:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 11:54:07,289 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:07,289 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:07,289 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:07,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:07,290 INFO L82 PathProgramCache]: Analyzing trace with hash 197335581, now seen corresponding path program 1 times [2019-12-18 11:54:07,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:07,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765735077] [2019-12-18 11:54:07,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:07,351 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:54:07,352 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:54:07,353 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:54:07,354 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 11:54:07,362 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,363 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,363 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,364 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,364 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,364 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,364 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,365 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,365 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,368 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,368 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,369 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,369 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,369 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,370 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,372 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,372 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,373 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,373 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,375 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,376 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,378 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,378 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:07,380 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 11:54:07,380 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:07,381 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:07,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:07,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:07,381 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:07,381 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:07,381 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:07,381 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:07,384 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 70 transitions [2019-12-18 11:54:07,384 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-18 11:54:07,400 INFO L126 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-18 11:54:07,400 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:07,403 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 20/80 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-18 11:54:07,407 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-18 11:54:07,421 INFO L126 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-18 11:54:07,421 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:07,423 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 20/80 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-18 11:54:07,427 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1346 [2019-12-18 11:54:07,427 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:08,094 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3193 [2019-12-18 11:54:08,095 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2019-12-18 11:54:08,095 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 36 transitions [2019-12-18 11:54:08,176 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1664 states. [2019-12-18 11:54:08,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states. [2019-12-18 11:54:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 11:54:08,177 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:08,177 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 11:54:08,178 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:08,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:08,178 INFO L82 PathProgramCache]: Analyzing trace with hash 328747791, now seen corresponding path program 1 times [2019-12-18 11:54:08,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:08,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76097013] [2019-12-18 11:54:08,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:08,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76097013] [2019-12-18 11:54:08,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:08,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:54:08,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193034051] [2019-12-18 11:54:08,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:08,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:08,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:08,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:08,222 INFO L87 Difference]: Start difference. First operand 1664 states. Second operand 3 states. [2019-12-18 11:54:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:08,275 INFO L93 Difference]: Finished difference Result 1093 states and 3980 transitions. [2019-12-18 11:54:08,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:08,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 11:54:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:08,300 INFO L225 Difference]: With dead ends: 1093 [2019-12-18 11:54:08,300 INFO L226 Difference]: Without dead ends: 1093 [2019-12-18 11:54:08,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-12-18 11:54:08,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2019-12-18 11:54:08,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-12-18 11:54:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 3980 transitions. [2019-12-18 11:54:08,395 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 3980 transitions. Word has length 5 [2019-12-18 11:54:08,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:08,396 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 3980 transitions. [2019-12-18 11:54:08,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 3980 transitions. [2019-12-18 11:54:08,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 11:54:08,398 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:08,398 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:08,398 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash -102318405, now seen corresponding path program 1 times [2019-12-18 11:54:08,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:08,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030731877] [2019-12-18 11:54:08,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:08,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:54:08,437 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:54:08,437 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:54:08,437 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 11:54:08,446 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,447 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,447 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,447 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,447 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,448 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,448 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,448 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,448 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,448 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,449 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,449 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,449 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,449 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,449 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,450 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,450 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,450 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,451 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,451 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,451 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,451 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,451 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,452 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,452 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,452 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,452 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,452 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,453 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,453 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,453 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,453 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,454 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,454 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,454 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,454 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,455 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,455 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,455 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,455 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,457 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,457 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,458 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,458 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,460 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,460 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,461 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,461 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,463 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,463 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,463 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,464 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,467 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,469 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,469 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,469 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,470 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:08,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 11:54:08,471 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:08,471 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:08,471 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:08,472 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:08,472 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:08,472 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:08,472 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:08,472 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:08,474 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions [2019-12-18 11:54:08,474 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-18 11:54:08,488 INFO L126 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-18 11:54:08,488 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:08,491 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 36/112 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-18 11:54:08,498 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-18 11:54:08,510 INFO L126 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-18 11:54:08,510 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:08,513 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 36/112 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-18 11:54:08,519 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2228 [2019-12-18 11:54:08,520 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:09,239 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5410 [2019-12-18 11:54:09,239 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2019-12-18 11:54:09,240 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 48 transitions [2019-12-18 11:54:10,064 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11660 states. [2019-12-18 11:54:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand 11660 states. [2019-12-18 11:54:10,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 11:54:10,065 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:10,065 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 11:54:10,065 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:10,066 INFO L82 PathProgramCache]: Analyzing trace with hash 496211931, now seen corresponding path program 1 times [2019-12-18 11:54:10,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:10,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756012581] [2019-12-18 11:54:10,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:10,147 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756012581] [2019-12-18 11:54:10,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:10,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:54:10,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884174248] [2019-12-18 11:54:10,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:10,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:10,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:10,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:10,149 INFO L87 Difference]: Start difference. First operand 11660 states. Second operand 3 states. [2019-12-18 11:54:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:10,350 INFO L93 Difference]: Finished difference Result 6178 states and 28552 transitions. [2019-12-18 11:54:10,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:10,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 11:54:10,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:10,417 INFO L225 Difference]: With dead ends: 6178 [2019-12-18 11:54:10,418 INFO L226 Difference]: Without dead ends: 6178 [2019-12-18 11:54:10,418 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:10,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2019-12-18 11:54:10,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2019-12-18 11:54:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6178 states. [2019-12-18 11:54:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 28552 transitions. [2019-12-18 11:54:10,723 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 28552 transitions. Word has length 5 [2019-12-18 11:54:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:10,724 INFO L462 AbstractCegarLoop]: Abstraction has 6178 states and 28552 transitions. [2019-12-18 11:54:10,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 28552 transitions. [2019-12-18 11:54:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 11:54:10,726 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:10,726 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:10,726 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:10,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:10,726 INFO L82 PathProgramCache]: Analyzing trace with hash -988299756, now seen corresponding path program 1 times [2019-12-18 11:54:10,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:10,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620623166] [2019-12-18 11:54:10,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:10,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620623166] [2019-12-18 11:54:10,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:10,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:54:10,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985999001] [2019-12-18 11:54:10,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:10,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:10,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:10,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:10,773 INFO L87 Difference]: Start difference. First operand 6178 states and 28552 transitions. Second operand 3 states. [2019-12-18 11:54:10,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:10,819 INFO L93 Difference]: Finished difference Result 1170 states and 3867 transitions. [2019-12-18 11:54:10,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:10,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 11:54:10,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:10,829 INFO L225 Difference]: With dead ends: 1170 [2019-12-18 11:54:10,832 INFO L226 Difference]: Without dead ends: 1170 [2019-12-18 11:54:10,833 INFO L631 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 [2019-12-18 11:54:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-12-18 11:54:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 918. [2019-12-18 11:54:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-12-18 11:54:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3069 transitions. [2019-12-18 11:54:10,873 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3069 transitions. Word has length 12 [2019-12-18 11:54:10,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:10,873 INFO L462 AbstractCegarLoop]: Abstraction has 918 states and 3069 transitions. [2019-12-18 11:54:10,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3069 transitions. [2019-12-18 11:54:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 11:54:10,876 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:10,876 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:10,876 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:10,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:10,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1893678895, now seen corresponding path program 1 times [2019-12-18 11:54:10,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:10,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120258743] [2019-12-18 11:54:10,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:11,038 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120258743] [2019-12-18 11:54:11,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:11,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:54:11,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836697824] [2019-12-18 11:54:11,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:54:11,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:11,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:54:11,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:54:11,042 INFO L87 Difference]: Start difference. First operand 918 states and 3069 transitions. Second operand 5 states. [2019-12-18 11:54:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:11,156 INFO L93 Difference]: Finished difference Result 1834 states and 6049 transitions. [2019-12-18 11:54:11,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 11:54:11,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 11:54:11,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:11,171 INFO L225 Difference]: With dead ends: 1834 [2019-12-18 11:54:11,171 INFO L226 Difference]: Without dead ends: 1834 [2019-12-18 11:54:11,172 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-18 11:54:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2019-12-18 11:54:11,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1582. [2019-12-18 11:54:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-12-18 11:54:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5251 transitions. [2019-12-18 11:54:11,226 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5251 transitions. Word has length 14 [2019-12-18 11:54:11,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:11,226 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 5251 transitions. [2019-12-18 11:54:11,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:54:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5251 transitions. [2019-12-18 11:54:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 11:54:11,228 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:11,228 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:11,228 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:11,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:11,228 INFO L82 PathProgramCache]: Analyzing trace with hash 437303836, now seen corresponding path program 1 times [2019-12-18 11:54:11,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:11,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561420060] [2019-12-18 11:54:11,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:11,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:54:11,253 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:54:11,254 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:54:11,254 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 11:54:11,264 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,264 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,265 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,265 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,265 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,265 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,265 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,266 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,266 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,266 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,266 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,266 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,267 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,267 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,267 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,267 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,267 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,267 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,268 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,268 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,268 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,268 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,268 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,269 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,269 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,271 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,271 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,273 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,273 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,273 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,273 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,273 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,274 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,275 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,275 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,275 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,276 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,277 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,277 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,277 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,277 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,279 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,279 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,279 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,279 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,281 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,281 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,281 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,281 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,283 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,283 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,285 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,285 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,285 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,285 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,287 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,287 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,287 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,287 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:11,289 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 11:54:11,289 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:11,289 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:11,289 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:11,289 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:11,289 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:11,290 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:11,290 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:11,290 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:11,291 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions [2019-12-18 11:54:11,291 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-18 11:54:11,306 INFO L126 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-18 11:54:11,306 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:11,309 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 56/148 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-18 11:54:11,315 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-18 11:54:11,328 INFO L126 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-18 11:54:11,328 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:11,330 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 56/148 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-18 11:54:11,335 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3330 [2019-12-18 11:54:11,335 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:12,245 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8716 [2019-12-18 11:54:12,245 INFO L214 etLargeBlockEncoding]: Total number of compositions: 64 [2019-12-18 11:54:12,246 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 62 transitions [2019-12-18 11:54:29,100 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 81632 states. [2019-12-18 11:54:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 81632 states. [2019-12-18 11:54:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 11:54:29,101 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:29,101 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 11:54:29,101 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:29,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash 700874106, now seen corresponding path program 1 times [2019-12-18 11:54:29,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:29,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950316634] [2019-12-18 11:54:29,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:29,139 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950316634] [2019-12-18 11:54:29,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:29,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:54:29,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554478963] [2019-12-18 11:54:29,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:29,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:29,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:29,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:29,141 INFO L87 Difference]: Start difference. First operand 81632 states. Second operand 3 states. [2019-12-18 11:54:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:29,473 INFO L93 Difference]: Finished difference Result 34843 states and 195705 transitions. [2019-12-18 11:54:29,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:29,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 11:54:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:29,721 INFO L225 Difference]: With dead ends: 34843 [2019-12-18 11:54:29,721 INFO L226 Difference]: Without dead ends: 34843 [2019-12-18 11:54:29,721 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34843 states. [2019-12-18 11:54:33,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34843 to 34843. [2019-12-18 11:54:33,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34843 states. [2019-12-18 11:54:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34843 states to 34843 states and 195705 transitions. [2019-12-18 11:54:33,293 INFO L78 Accepts]: Start accepts. Automaton has 34843 states and 195705 transitions. Word has length 5 [2019-12-18 11:54:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:33,294 INFO L462 AbstractCegarLoop]: Abstraction has 34843 states and 195705 transitions. [2019-12-18 11:54:33,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 34843 states and 195705 transitions. [2019-12-18 11:54:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 11:54:33,294 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:33,294 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:33,295 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:33,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1025197219, now seen corresponding path program 1 times [2019-12-18 11:54:33,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:33,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633004720] [2019-12-18 11:54:33,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:33,340 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633004720] [2019-12-18 11:54:33,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:33,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:54:33,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745530669] [2019-12-18 11:54:33,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:33,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:33,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:33,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:33,342 INFO L87 Difference]: Start difference. First operand 34843 states and 195705 transitions. Second operand 3 states. [2019-12-18 11:54:33,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:33,379 INFO L93 Difference]: Finished difference Result 3051 states and 11616 transitions. [2019-12-18 11:54:33,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:33,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 11:54:33,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:33,391 INFO L225 Difference]: With dead ends: 3051 [2019-12-18 11:54:33,391 INFO L226 Difference]: Without dead ends: 3051 [2019-12-18 11:54:33,391 INFO L631 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 [2019-12-18 11:54:33,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2019-12-18 11:54:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2335. [2019-12-18 11:54:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2019-12-18 11:54:33,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 9018 transitions. [2019-12-18 11:54:33,462 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 9018 transitions. Word has length 12 [2019-12-18 11:54:33,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:33,462 INFO L462 AbstractCegarLoop]: Abstraction has 2335 states and 9018 transitions. [2019-12-18 11:54:33,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:33,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 9018 transitions. [2019-12-18 11:54:33,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 11:54:33,464 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:33,464 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:33,464 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:33,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:33,465 INFO L82 PathProgramCache]: Analyzing trace with hash -897581190, now seen corresponding path program 1 times [2019-12-18 11:54:33,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:33,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093188767] [2019-12-18 11:54:33,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:33,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093188767] [2019-12-18 11:54:33,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:33,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:54:33,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724391072] [2019-12-18 11:54:33,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:54:33,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:33,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:54:33,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:54:33,510 INFO L87 Difference]: Start difference. First operand 2335 states and 9018 transitions. Second operand 5 states. [2019-12-18 11:54:33,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:33,638 INFO L93 Difference]: Finished difference Result 4855 states and 18434 transitions. [2019-12-18 11:54:33,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 11:54:33,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 11:54:33,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:33,652 INFO L225 Difference]: With dead ends: 4855 [2019-12-18 11:54:33,652 INFO L226 Difference]: Without dead ends: 4855 [2019-12-18 11:54:33,653 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-18 11:54:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2019-12-18 11:54:33,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4139. [2019-12-18 11:54:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4139 states. [2019-12-18 11:54:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 15836 transitions. [2019-12-18 11:54:33,759 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 15836 transitions. Word has length 14 [2019-12-18 11:54:33,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:33,759 INFO L462 AbstractCegarLoop]: Abstraction has 4139 states and 15836 transitions. [2019-12-18 11:54:33,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:54:33,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 15836 transitions. [2019-12-18 11:54:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-18 11:54:33,763 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:33,763 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:33,763 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:33,764 INFO L82 PathProgramCache]: Analyzing trace with hash -76262713, now seen corresponding path program 1 times [2019-12-18 11:54:33,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:33,764 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918229119] [2019-12-18 11:54:33,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:33,784 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:54:33,785 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:54:33,785 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:54:33,785 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 11:54:33,796 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,797 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,797 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,797 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,797 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,797 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,797 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,798 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,798 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,798 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,798 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,798 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,798 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,799 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,799 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,800 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,800 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,800 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,800 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,800 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,800 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,800 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,801 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,801 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,801 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,801 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,801 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,802 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,802 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,802 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,803 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,803 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,803 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,804 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,804 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,804 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,804 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,804 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,804 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,805 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,805 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,805 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,806 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,806 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,806 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,806 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,807 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,807 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,807 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,807 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,807 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,809 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,809 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,809 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,809 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,811 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,811 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,811 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,811 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,813 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,813 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,813 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,814 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,815 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,815 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,815 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,815 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,819 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,819 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,819 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,819 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,821 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,821 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,821 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,821 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,823 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,823 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,823 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,823 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,825 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,825 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,825 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,825 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-18 11:54:33,827 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:33,827 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:33,827 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:33,828 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:33,828 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:33,828 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:33,828 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:33,828 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:33,829 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 139 transitions [2019-12-18 11:54:33,829 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-18 11:54:33,843 INFO L126 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-18 11:54:33,844 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:33,846 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 80/188 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-18 11:54:33,854 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-18 11:54:33,868 INFO L126 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-18 11:54:33,868 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:33,871 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 80/188 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-18 11:54:33,880 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4652 [2019-12-18 11:54:33,880 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:35,134 WARN L192 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-12-18 11:54:35,180 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12277 [2019-12-18 11:54:35,180 INFO L214 etLargeBlockEncoding]: Total number of compositions: 76 [2019-12-18 11:54:35,180 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions Received shutdown request... [2019-12-18 11:58:30,111 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 11:58:30,114 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 11:58:30,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:58:30 BasicIcfg [2019-12-18 11:58:30,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 11:58:30,116 INFO L168 Benchmark]: Toolchain (without parser) took 265342.10 ms. Allocated memory was 138.9 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 102.3 MB in the beginning and 857.8 MB in the end (delta: -755.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2019-12-18 11:58:30,117 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 11:58:30,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.56 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 162.5 MB in the end (delta: -60.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-12-18 11:58:30,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.12 ms. Allocated memory is still 203.4 MB. Free memory was 162.5 MB in the beginning and 160.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 11:58:30,119 INFO L168 Benchmark]: Boogie Preprocessor took 26.09 ms. Allocated memory is still 203.4 MB. Free memory was 160.6 MB in the beginning and 158.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 11:58:30,120 INFO L168 Benchmark]: RCFGBuilder took 428.65 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 141.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-12-18 11:58:30,121 INFO L168 Benchmark]: TraceAbstraction took 264164.58 ms. Allocated memory was 203.4 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 140.2 MB in the beginning and 857.8 MB in the end (delta: -717.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-12-18 11:58:30,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.56 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 162.5 MB in the end (delta: -60.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.12 ms. Allocated memory is still 203.4 MB. Free memory was 162.5 MB in the beginning and 160.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.09 ms. Allocated memory is still 203.4 MB. Free memory was 160.6 MB in the beginning and 158.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 428.65 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 141.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 264164.58 ms. Allocated memory was 203.4 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 140.2 MB in the beginning and 857.8 MB in the end (delta: -717.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 47 ProgramPointsBefore, 22 ProgramPointsAfterwards, 47 TransitionsBefore, 21 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 6 FixpointIterations, 11 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 286 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 1213 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 69 ProgramPointsBefore, 36 ProgramPointsAfterwards, 70 TransitionsBefore, 36 TransitionsAfterwards, 1346 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 574 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 3193 CheckedPairsTotal, 39 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 91 ProgramPointsBefore, 49 ProgramPointsAfterwards, 93 TransitionsBefore, 48 TransitionsAfterwards, 2228 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 10 ConcurrentYvCompositions, 10 ChoiceCompositions, 772 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 5410 CheckedPairsTotal, 50 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 113 ProgramPointsBefore, 62 ProgramPointsAfterwards, 116 TransitionsBefore, 62 TransitionsAfterwards, 3330 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 13 ConcurrentYvCompositions, 12 ChoiceCompositions, 1209 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 8716 CheckedPairsTotal, 64 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 135 ProgramPointsBefore, 75 ProgramPointsAfterwards, 139 TransitionsBefore, 74 TransitionsAfterwards, 4652 CoEnabledTransitionPairs, 5 FixpointIterations, 38 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 14 ConcurrentYvCompositions, 16 ChoiceCompositions, 1414 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 12277 CheckedPairsTotal, 76 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 706]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 706). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 75 places, 74 transitions. Already constructed 374155 states. Currently 52318 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 236.2s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown