/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 0.1.25-4336eb1 [2019-12-26 20:57:13,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 20:57:13,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 20:57:13,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 20:57:13,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 20:57:13,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 20:57:13,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 20:57:13,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 20:57:13,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 20:57:13,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 20:57:13,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 20:57:13,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 20:57:13,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 20:57:13,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 20:57:13,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 20:57:13,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 20:57:13,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 20:57:13,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 20:57:13,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 20:57:13,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 20:57:13,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 20:57:13,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 20:57:13,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 20:57:13,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 20:57:13,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 20:57:13,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 20:57:13,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 20:57:13,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 20:57:13,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 20:57:13,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 20:57:13,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 20:57:13,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 20:57:13,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 20:57:13,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 20:57:13,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 20:57:13,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 20:57:13,466 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 [2019-12-26 20:57:13,482 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 20:57:13,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 20:57:13,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 20:57:13,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 20:57:13,483 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 20:57:13,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 20:57:13,484 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 20:57:13,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 20:57:13,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 20:57:13,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 20:57:13,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 20:57:13,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 20:57:13,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 20:57:13,485 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 20:57:13,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 20:57:13,485 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 20:57:13,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 20:57:13,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 20:57:13,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 20:57:13,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 20:57:13,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 20:57:13,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:57:13,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 20:57:13,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 20:57:13,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 20:57:13,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 20:57:13,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 20:57:13,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 20:57:13,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 20:57:13,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 20:57:13,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 20:57:13,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 20:57:13,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 20:57:13,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 20:57:13,812 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 20:57:13,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-26 20:57:13,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cd68e730/862906adc96b4a3ead6c22c2d5eb7291/FLAGd7d2853aa [2019-12-26 20:57:14,395 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 20:57:14,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-26 20:57:14,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cd68e730/862906adc96b4a3ead6c22c2d5eb7291/FLAGd7d2853aa [2019-12-26 20:57:14,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cd68e730/862906adc96b4a3ead6c22c2d5eb7291 [2019-12-26 20:57:14,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 20:57:14,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 20:57:14,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 20:57:14,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 20:57:14,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 20:57:14,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:57:14" (1/1) ... [2019-12-26 20:57:14,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d67792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:14, skipping insertion in model container [2019-12-26 20:57:14,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:57:14" (1/1) ... [2019-12-26 20:57:14,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 20:57:14,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 20:57:15,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:57:15,262 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 20:57:15,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:57:15,397 INFO L208 MainTranslator]: Completed translation [2019-12-26 20:57:15,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15 WrapperNode [2019-12-26 20:57:15,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 20:57:15,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 20:57:15,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 20:57:15,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 20:57:15,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 20:57:15,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 20:57:15,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 20:57:15,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 20:57:15,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (1/1) ... [2019-12-26 20:57:15,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 20:57:15,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 20:57:15,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 20:57:15,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 20:57:15,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (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 [2019-12-26 20:57:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-26 20:57:15,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-26 20:57:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-26 20:57:15,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-26 20:57:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 20:57:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 20:57:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 20:57:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 20:57:15,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 20:57:15,540 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 20:57:15,705 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-26 20:57:15,706 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-26 20:57:15,763 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-26 20:57:15,768 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-26 20:57:15,868 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 20:57:15,868 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-26 20:57:15,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:57:15 BoogieIcfgContainer [2019-12-26 20:57:15,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 20:57:15,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 20:57:15,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 20:57:15,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 20:57:15,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 08:57:14" (1/3) ... [2019-12-26 20:57:15,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac1249a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:57:15, skipping insertion in model container [2019-12-26 20:57:15,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:57:15" (2/3) ... [2019-12-26 20:57:15,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac1249a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:57:15, skipping insertion in model container [2019-12-26 20:57:15,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:57:15" (3/3) ... [2019-12-26 20:57:15,879 INFO L109 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2019-12-26 20:57:15,889 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 20:57:15,890 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 20:57:15,899 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 20:57:15,900 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 20:57:15,923 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,924 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,924 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,924 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,925 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,925 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,926 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,927 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,932 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,932 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,932 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,933 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,939 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,940 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,940 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,940 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:15,957 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 20:57:15,973 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:57:15,974 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:57:15,974 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:57:15,974 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:57:15,974 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:57:15,974 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:57:15,974 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:57:15,974 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:57:15,986 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 47 transitions [2019-12-26 20:57:15,988 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-26 20:57:16,028 INFO L132 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-26 20:57:16,028 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 20:57:16,036 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. 0/44 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-26 20:57:16,040 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-26 20:57:16,060 INFO L132 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-26 20:57:16,060 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 20:57:16,062 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. 0/44 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-26 20:57:16,065 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 684 [2019-12-26 20:57:16,066 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:57:16,776 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1213 [2019-12-26 20:57:16,776 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-26 20:57:16,780 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-26 20:57:16,799 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 206 states. [2019-12-26 20:57:16,801 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-12-26 20:57:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-26 20:57:16,808 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:16,809 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-26 20:57:16,809 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-26 20:57:16,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:16,816 INFO L82 PathProgramCache]: Analyzing trace with hash 197558128, now seen corresponding path program 1 times [2019-12-26 20:57:16,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:16,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185476128] [2019-12-26 20:57:16,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:17,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185476128] [2019-12-26 20:57:17,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:17,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 20:57:17,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574969738] [2019-12-26 20:57:17,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:57:17,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:17,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:57:17,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:57:17,063 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2019-12-26 20:57:17,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:17,103 INFO L93 Difference]: Finished difference Result 142 states and 378 transitions. [2019-12-26 20:57:17,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:57:17,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-26 20:57:17,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:17,120 INFO L225 Difference]: With dead ends: 142 [2019-12-26 20:57:17,120 INFO L226 Difference]: Without dead ends: 142 [2019-12-26 20:57:17,122 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 [2019-12-26 20:57:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-26 20:57:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-12-26 20:57:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-26 20:57:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 378 transitions. [2019-12-26 20:57:17,179 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 378 transitions. Word has length 5 [2019-12-26 20:57:17,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:17,179 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 378 transitions. [2019-12-26 20:57:17,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:57:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 378 transitions. [2019-12-26 20:57:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 20:57:17,180 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:17,181 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:17,181 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-26 20:57:17,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:17,181 INFO L82 PathProgramCache]: Analyzing trace with hash 197335581, now seen corresponding path program 1 times [2019-12-26 20:57:17,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:17,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524661521] [2019-12-26 20:57:17,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:17,266 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-26 20:57:17,267 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-26 20:57:17,268 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-26 20:57:17,269 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-26 20:57:17,278 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,278 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,278 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,278 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,279 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,279 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,279 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,280 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,280 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,280 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,280 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,281 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,281 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,282 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,282 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,283 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,284 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,284 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,284 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,285 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,285 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,285 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,285 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,288 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,289 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,289 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,289 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,291 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,291 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,292 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,292 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,294 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,295 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,295 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,295 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:17,297 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-26 20:57:17,297 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:57:17,298 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:57:17,298 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:57:17,298 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:57:17,298 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:57:17,298 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:57:17,298 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:57:17,298 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:57:17,301 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 70 transitions [2019-12-26 20:57:17,301 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-26 20:57:17,320 INFO L132 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-26 20:57:17,320 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-26 20:57:17,322 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 0/60 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-26 20:57:17,327 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-26 20:57:17,342 INFO L132 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-26 20:57:17,342 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-26 20:57:17,344 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 0/60 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-26 20:57:17,349 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1346 [2019-12-26 20:57:17,349 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:57:18,029 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3193 [2019-12-26 20:57:18,031 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2019-12-26 20:57:18,031 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 36 transitions [2019-12-26 20:57:18,131 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1664 states. [2019-12-26 20:57:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states. [2019-12-26 20:57:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-26 20:57:18,132 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:18,133 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-26 20:57:18,133 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:57:18,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:18,134 INFO L82 PathProgramCache]: Analyzing trace with hash 328747791, now seen corresponding path program 1 times [2019-12-26 20:57:18,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:18,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698486200] [2019-12-26 20:57:18,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:18,217 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698486200] [2019-12-26 20:57:18,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:18,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 20:57:18,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225966670] [2019-12-26 20:57:18,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:57:18,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:18,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:57:18,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:57:18,219 INFO L87 Difference]: Start difference. First operand 1664 states. Second operand 3 states. [2019-12-26 20:57:18,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:18,287 INFO L93 Difference]: Finished difference Result 1093 states and 3980 transitions. [2019-12-26 20:57:18,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:57:18,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-26 20:57:18,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:18,304 INFO L225 Difference]: With dead ends: 1093 [2019-12-26 20:57:18,304 INFO L226 Difference]: Without dead ends: 1093 [2019-12-26 20:57:18,304 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 [2019-12-26 20:57:18,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-12-26 20:57:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2019-12-26 20:57:18,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-12-26 20:57:18,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 3980 transitions. [2019-12-26 20:57:18,427 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 3980 transitions. Word has length 5 [2019-12-26 20:57:18,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:18,427 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 3980 transitions. [2019-12-26 20:57:18,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:57:18,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 3980 transitions. [2019-12-26 20:57:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 20:57:18,429 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:18,430 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:18,430 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:57:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:18,430 INFO L82 PathProgramCache]: Analyzing trace with hash -102318405, now seen corresponding path program 1 times [2019-12-26 20:57:18,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:18,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972275126] [2019-12-26 20:57:18,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:18,487 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-26 20:57:18,487 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-26 20:57:18,490 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-26 20:57:18,490 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-26 20:57:18,503 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,503 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,503 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,503 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,504 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,504 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,505 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,505 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,505 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,505 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,506 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,509 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,510 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,511 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,511 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,511 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,511 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,513 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,514 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,515 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,515 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,516 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,516 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,516 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,516 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,517 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,517 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,518 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,518 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,518 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,519 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,520 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,521 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,522 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,522 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,522 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,522 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,523 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,524 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,524 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,524 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,526 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,526 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,526 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,526 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,527 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,527 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,528 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:18,529 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-26 20:57:18,529 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:57:18,529 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:57:18,529 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:57:18,529 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:57:18,530 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:57:18,530 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:57:18,530 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:57:18,530 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:57:18,531 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions [2019-12-26 20:57:18,532 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-26 20:57:18,547 INFO L132 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-26 20:57:18,548 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-26 20:57:18,550 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 0/76 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-26 20:57:18,555 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-26 20:57:18,569 INFO L132 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-26 20:57:18,570 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-26 20:57:18,572 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 0/76 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-26 20:57:18,578 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2228 [2019-12-26 20:57:18,578 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:57:19,273 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5410 [2019-12-26 20:57:19,274 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2019-12-26 20:57:19,274 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 48 transitions [2019-12-26 20:57:20,285 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11660 states. [2019-12-26 20:57:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 11660 states. [2019-12-26 20:57:20,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-26 20:57:20,286 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:20,286 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-26 20:57:20,286 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:57:20,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:20,287 INFO L82 PathProgramCache]: Analyzing trace with hash 496211931, now seen corresponding path program 1 times [2019-12-26 20:57:20,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:20,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638506771] [2019-12-26 20:57:20,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:20,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638506771] [2019-12-26 20:57:20,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:20,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 20:57:20,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511944785] [2019-12-26 20:57:20,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:57:20,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:20,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:57:20,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:57:20,351 INFO L87 Difference]: Start difference. First operand 11660 states. Second operand 3 states. [2019-12-26 20:57:20,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:20,472 INFO L93 Difference]: Finished difference Result 6178 states and 28552 transitions. [2019-12-26 20:57:20,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:57:20,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-26 20:57:20,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:20,544 INFO L225 Difference]: With dead ends: 6178 [2019-12-26 20:57:20,544 INFO L226 Difference]: Without dead ends: 6178 [2019-12-26 20:57:20,544 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 [2019-12-26 20:57:20,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2019-12-26 20:57:20,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2019-12-26 20:57:20,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6178 states. [2019-12-26 20:57:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 28552 transitions. [2019-12-26 20:57:20,951 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 28552 transitions. Word has length 5 [2019-12-26 20:57:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:20,951 INFO L462 AbstractCegarLoop]: Abstraction has 6178 states and 28552 transitions. [2019-12-26 20:57:20,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:57:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 28552 transitions. [2019-12-26 20:57:20,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-26 20:57:20,953 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:20,953 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:20,953 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:57:20,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:20,954 INFO L82 PathProgramCache]: Analyzing trace with hash -988299756, now seen corresponding path program 1 times [2019-12-26 20:57:20,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:20,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672256080] [2019-12-26 20:57:20,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:20,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672256080] [2019-12-26 20:57:20,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:20,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:57:20,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390278240] [2019-12-26 20:57:20,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:57:20,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:20,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:57:20,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:57:20,992 INFO L87 Difference]: Start difference. First operand 6178 states and 28552 transitions. Second operand 3 states. [2019-12-26 20:57:21,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:21,058 INFO L93 Difference]: Finished difference Result 1170 states and 3867 transitions. [2019-12-26 20:57:21,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:57:21,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-26 20:57:21,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:21,071 INFO L225 Difference]: With dead ends: 1170 [2019-12-26 20:57:21,080 INFO L226 Difference]: Without dead ends: 1170 [2019-12-26 20:57:21,082 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 [2019-12-26 20:57:21,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-12-26 20:57:21,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 918. [2019-12-26 20:57:21,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-12-26 20:57:21,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3069 transitions. [2019-12-26 20:57:21,131 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3069 transitions. Word has length 12 [2019-12-26 20:57:21,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:21,132 INFO L462 AbstractCegarLoop]: Abstraction has 918 states and 3069 transitions. [2019-12-26 20:57:21,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:57:21,132 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3069 transitions. [2019-12-26 20:57:21,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-26 20:57:21,140 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:21,140 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:21,140 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:57:21,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:21,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1893678895, now seen corresponding path program 1 times [2019-12-26 20:57:21,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:21,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326496501] [2019-12-26 20:57:21,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:21,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:21,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326496501] [2019-12-26 20:57:21,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:21,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:57:21,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401590475] [2019-12-26 20:57:21,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-26 20:57:21,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:21,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-26 20:57:21,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-26 20:57:21,229 INFO L87 Difference]: Start difference. First operand 918 states and 3069 transitions. Second operand 5 states. [2019-12-26 20:57:21,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:21,386 INFO L93 Difference]: Finished difference Result 1834 states and 6049 transitions. [2019-12-26 20:57:21,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-26 20:57:21,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-26 20:57:21,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:21,402 INFO L225 Difference]: With dead ends: 1834 [2019-12-26 20:57:21,403 INFO L226 Difference]: Without dead ends: 1834 [2019-12-26 20:57:21,404 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 [2019-12-26 20:57:21,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2019-12-26 20:57:21,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1582. [2019-12-26 20:57:21,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-12-26 20:57:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5251 transitions. [2019-12-26 20:57:21,460 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5251 transitions. Word has length 14 [2019-12-26 20:57:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:21,460 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 5251 transitions. [2019-12-26 20:57:21,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-26 20:57:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5251 transitions. [2019-12-26 20:57:21,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-26 20:57:21,462 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:21,462 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:21,462 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:57:21,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:21,463 INFO L82 PathProgramCache]: Analyzing trace with hash 437303836, now seen corresponding path program 1 times [2019-12-26 20:57:21,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:21,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885285538] [2019-12-26 20:57:21,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:21,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-26 20:57:21,513 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-26 20:57:21,514 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-26 20:57:21,514 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-26 20:57:21,529 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,529 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,529 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,529 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,530 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,530 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,530 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,530 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,530 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,531 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,531 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,531 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,532 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,532 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,532 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,532 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,533 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,533 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,533 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,533 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,534 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,534 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,535 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,535 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,535 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,535 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,535 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,536 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,536 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,539 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,539 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,539 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,540 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,541 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,542 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,542 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,542 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,543 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,544 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,544 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,544 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,545 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,546 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,546 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,546 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,548 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,548 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,549 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,549 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,550 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,550 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,551 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,551 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,552 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,553 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,553 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,553 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,555 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,555 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,555 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,556 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:21,557 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-26 20:57:21,557 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:57:21,558 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:57:21,558 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:57:21,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:57:21,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:57:21,558 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:57:21,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:57:21,558 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:57:21,562 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions [2019-12-26 20:57:21,562 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-26 20:57:21,589 INFO L132 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-26 20:57:21,589 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-26 20:57:21,594 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 0/92 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-26 20:57:21,601 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-26 20:57:21,742 INFO L132 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-26 20:57:21,742 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-26 20:57:21,745 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 0/92 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-26 20:57:21,753 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3330 [2019-12-26 20:57:21,753 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:57:22,563 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8716 [2019-12-26 20:57:22,563 INFO L214 etLargeBlockEncoding]: Total number of compositions: 64 [2019-12-26 20:57:22,563 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 62 transitions [2019-12-26 20:57:40,189 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 81632 states. [2019-12-26 20:57:40,189 INFO L276 IsEmpty]: Start isEmpty. Operand 81632 states. [2019-12-26 20:57:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-26 20:57:40,189 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:40,190 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-26 20:57:40,190 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]=== [2019-12-26 20:57:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:40,190 INFO L82 PathProgramCache]: Analyzing trace with hash 700874106, now seen corresponding path program 1 times [2019-12-26 20:57:40,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:40,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511975865] [2019-12-26 20:57:40,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:40,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511975865] [2019-12-26 20:57:40,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:40,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 20:57:40,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354061758] [2019-12-26 20:57:40,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:57:40,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:40,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:57:40,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:57:40,220 INFO L87 Difference]: Start difference. First operand 81632 states. Second operand 3 states. [2019-12-26 20:57:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:40,559 INFO L93 Difference]: Finished difference Result 34843 states and 195705 transitions. [2019-12-26 20:57:40,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:57:40,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-26 20:57:40,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:40,813 INFO L225 Difference]: With dead ends: 34843 [2019-12-26 20:57:40,814 INFO L226 Difference]: Without dead ends: 34843 [2019-12-26 20:57:40,814 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 [2019-12-26 20:57:43,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34843 states. [2019-12-26 20:57:44,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34843 to 34843. [2019-12-26 20:57:44,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34843 states. [2019-12-26 20:57:44,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34843 states to 34843 states and 195705 transitions. [2019-12-26 20:57:44,689 INFO L78 Accepts]: Start accepts. Automaton has 34843 states and 195705 transitions. Word has length 5 [2019-12-26 20:57:44,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:44,689 INFO L462 AbstractCegarLoop]: Abstraction has 34843 states and 195705 transitions. [2019-12-26 20:57:44,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:57:44,690 INFO L276 IsEmpty]: Start isEmpty. Operand 34843 states and 195705 transitions. [2019-12-26 20:57:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-26 20:57:44,690 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:44,690 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:44,691 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]=== [2019-12-26 20:57:44,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:44,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1025197219, now seen corresponding path program 1 times [2019-12-26 20:57:44,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:44,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508903907] [2019-12-26 20:57:44,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:44,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508903907] [2019-12-26 20:57:44,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:44,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:57:44,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255358414] [2019-12-26 20:57:44,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:57:44,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:44,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:57:44,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:57:44,713 INFO L87 Difference]: Start difference. First operand 34843 states and 195705 transitions. Second operand 3 states. [2019-12-26 20:57:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:44,752 INFO L93 Difference]: Finished difference Result 3051 states and 11616 transitions. [2019-12-26 20:57:44,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:57:44,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-26 20:57:44,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:44,764 INFO L225 Difference]: With dead ends: 3051 [2019-12-26 20:57:44,764 INFO L226 Difference]: Without dead ends: 3051 [2019-12-26 20:57:44,765 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 [2019-12-26 20:57:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2019-12-26 20:57:44,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2335. [2019-12-26 20:57:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2019-12-26 20:57:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 9018 transitions. [2019-12-26 20:57:44,845 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 9018 transitions. Word has length 12 [2019-12-26 20:57:44,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:44,845 INFO L462 AbstractCegarLoop]: Abstraction has 2335 states and 9018 transitions. [2019-12-26 20:57:44,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:57:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 9018 transitions. [2019-12-26 20:57:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-26 20:57:44,847 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:44,847 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:44,847 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]=== [2019-12-26 20:57:44,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:44,847 INFO L82 PathProgramCache]: Analyzing trace with hash -897581190, now seen corresponding path program 1 times [2019-12-26 20:57:44,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:44,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780667022] [2019-12-26 20:57:44,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:57:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:57:44,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780667022] [2019-12-26 20:57:44,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:57:44,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:57:44,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437425266] [2019-12-26 20:57:44,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-26 20:57:44,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:57:44,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-26 20:57:44,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-26 20:57:44,900 INFO L87 Difference]: Start difference. First operand 2335 states and 9018 transitions. Second operand 5 states. [2019-12-26 20:57:45,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:57:45,022 INFO L93 Difference]: Finished difference Result 4855 states and 18434 transitions. [2019-12-26 20:57:45,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-26 20:57:45,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-26 20:57:45,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:57:45,039 INFO L225 Difference]: With dead ends: 4855 [2019-12-26 20:57:45,039 INFO L226 Difference]: Without dead ends: 4855 [2019-12-26 20:57:45,040 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 [2019-12-26 20:57:45,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2019-12-26 20:57:45,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4139. [2019-12-26 20:57:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4139 states. [2019-12-26 20:57:45,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 15836 transitions. [2019-12-26 20:57:45,159 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 15836 transitions. Word has length 14 [2019-12-26 20:57:45,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:57:45,159 INFO L462 AbstractCegarLoop]: Abstraction has 4139 states and 15836 transitions. [2019-12-26 20:57:45,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-26 20:57:45,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 15836 transitions. [2019-12-26 20:57:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-26 20:57:45,162 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:57:45,162 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:57:45,162 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]=== [2019-12-26 20:57:45,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:57:45,163 INFO L82 PathProgramCache]: Analyzing trace with hash -76262713, now seen corresponding path program 1 times [2019-12-26 20:57:45,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:57:45,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723501334] [2019-12-26 20:57:45,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:57:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-26 20:57:45,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-26 20:57:45,183 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-26 20:57:45,183 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-26 20:57:45,183 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-26 20:57:45,194 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,195 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,195 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,195 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,195 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,195 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,196 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,196 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,196 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,196 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,196 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,196 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,197 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,197 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,197 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,197 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,197 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,197 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,198 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,198 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,198 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,198 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,198 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,198 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,199 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,199 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,199 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,199 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,199 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,199 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,200 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,200 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,201 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,201 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,201 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,201 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,201 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,202 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,202 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,204 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,204 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,204 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,204 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,205 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,205 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,205 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,205 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,206 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,206 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,208 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,208 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,208 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,209 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,210 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,210 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,210 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,210 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,212 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,212 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,212 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,212 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,214 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,214 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,214 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,214 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,215 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,216 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,216 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,216 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,217 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,217 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,219 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,219 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,219 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,219 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,220 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,220 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,221 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,221 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,222 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,222 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,222 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,222 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:57:45,223 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-26 20:57:45,224 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:57:45,224 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:57:45,224 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:57:45,224 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:57:45,224 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:57:45,224 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:57:45,224 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:57:45,224 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:57:45,226 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 139 transitions [2019-12-26 20:57:45,226 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-26 20:57:45,244 INFO L132 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-26 20:57:45,244 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-26 20:57:45,248 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 0/108 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-26 20:57:45,256 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-26 20:57:45,280 INFO L132 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-26 20:57:45,280 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-26 20:57:45,284 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 0/108 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-26 20:57:45,293 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4652 [2019-12-26 20:57:45,294 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:57:46,018 WARN L192 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-12-26 20:57:46,586 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12277 [2019-12-26 20:57:46,586 INFO L214 etLargeBlockEncoding]: Total number of compositions: 76 [2019-12-26 20:57:46,586 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions Received shutdown request... [2019-12-26 21:01:44,402 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-26 21:01:44,405 WARN L227 ceAbstractionStarter]: Timeout [2019-12-26 21:01:44,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 09:01:44 BasicIcfg [2019-12-26 21:01:44,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 21:01:44,407 INFO L168 Benchmark]: Toolchain (without parser) took 269682.79 ms. Allocated memory was 136.3 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 99.4 MB in the beginning and 1.0 GB in the end (delta: -935.1 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-12-26 21:01:44,408 INFO L168 Benchmark]: CDTParser took 1.42 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-26 21:01:44,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.64 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 159.8 MB in the end (delta: -60.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:44,410 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.68 ms. Allocated memory is still 200.8 MB. Free memory was 159.8 MB in the beginning and 157.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:44,410 INFO L168 Benchmark]: Boogie Preprocessor took 27.70 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:44,411 INFO L168 Benchmark]: RCFGBuilder took 389.51 ms. Allocated memory is still 200.8 MB. Free memory was 156.3 MB in the beginning and 138.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-12-26 21:01:44,412 INFO L168 Benchmark]: TraceAbstraction took 268533.76 ms. Allocated memory was 200.8 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 137.7 MB in the beginning and 1.0 GB in the end (delta: -896.8 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-12-26 21:01:44,421 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.64 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 159.8 MB in the end (delta: -60.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.68 ms. Allocated memory is still 200.8 MB. Free memory was 159.8 MB in the beginning and 157.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.70 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 389.51 ms. Allocated memory is still 200.8 MB. Free memory was 156.3 MB in the beginning and 138.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268533.76 ms. Allocated memory was 200.8 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 137.7 MB in the beginning and 1.0 GB in the end (delta: -896.8 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: 1.0s, 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 382851 states. Currently 52742 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 239.1s, 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