/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:50:18,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:50:18,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:50:18,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:50:18,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:50:18,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:50:18,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:50:18,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:50:18,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:50:18,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:50:18,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:50:18,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:50:18,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:50:18,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:50:18,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:50:18,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:50:18,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:50:18,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:50:18,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:50:18,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:50:18,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:50:18,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:50:18,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:50:18,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:50:18,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:50:18,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:50:18,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:50:18,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:50:18,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:50:18,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:50:18,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:50:18,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:50:18,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:50:18,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:50:18,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:50:18,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:50:18,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:50:18,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:50:18,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:50:18,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:50:18,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:50:18,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 04:50:18,616 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:50:18,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:50:18,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:50:18,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:50:18,618 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:50:18,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:50:18,618 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:50:18,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:50:18,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:50:18,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:50:18,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:50:18,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:50:18,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:50:18,619 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:50:18,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:50:18,620 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:50:18,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:50:18,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:50:18,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:50:18,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:50:18,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:50:18,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:50:18,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:50:18,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:50:18,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:50:18,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:50:18,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:50:18,622 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 04:50:18,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:50:18,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:50:18,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:50:18,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:50:18,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:50:18,934 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:50:18,934 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:50:18,936 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-27 04:50:19,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a6f6b55/e6d306291e0d4a8eb451fc6ffd4446e4/FLAG9e4026408 [2019-12-27 04:50:19,525 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:50:19,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-27 04:50:19,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a6f6b55/e6d306291e0d4a8eb451fc6ffd4446e4/FLAG9e4026408 [2019-12-27 04:50:19,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a6f6b55/e6d306291e0d4a8eb451fc6ffd4446e4 [2019-12-27 04:50:19,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:50:19,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:50:19,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:50:19,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:50:19,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:50:19,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:50:19" (1/1) ... [2019-12-27 04:50:19,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690570e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:19, skipping insertion in model container [2019-12-27 04:50:19,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:50:19" (1/1) ... [2019-12-27 04:50:19,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:50:19,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:50:20,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:50:20,360 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:50:20,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:50:20,497 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:50:20,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20 WrapperNode [2019-12-27 04:50:20,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:50:20,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:50:20,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:50:20,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:50:20,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:50:20,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:50:20,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:50:20,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:50:20,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (1/1) ... [2019-12-27 04:50:20,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:50:20,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:50:20,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:50:20,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:50:20,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (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 [2019-12-27 04:50:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 04:50:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 04:50:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 04:50:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 04:50:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:50:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:50:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:50:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:50:20,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:50:20,641 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 04:50:20,831 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 04:50:20,834 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 04:50:20,906 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 04:50:20,910 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 04:50:21,002 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:50:21,002 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 04:50:21,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:50:21 BoogieIcfgContainer [2019-12-27 04:50:21,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:50:21,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:50:21,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:50:21,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:50:21,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:50:19" (1/3) ... [2019-12-27 04:50:21,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8a7182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:50:21, skipping insertion in model container [2019-12-27 04:50:21,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:50:20" (2/3) ... [2019-12-27 04:50:21,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8a7182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:50:21, skipping insertion in model container [2019-12-27 04:50:21,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:50:21" (3/3) ... [2019-12-27 04:50:21,011 INFO L109 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2019-12-27 04:50:21,021 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:50:21,021 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:50:21,028 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:50:21,029 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:50:21,052 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,053 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,053 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,053 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,054 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,054 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,055 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,055 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,055 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,056 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,056 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,056 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,060 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,061 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,061 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,061 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,068 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,068 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,068 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,069 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:21,083 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:50:21,101 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:50:21,101 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:50:21,101 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:50:21,101 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:50:21,101 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:50:21,101 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:50:21,102 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:50:21,102 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:50:21,115 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 47 transitions [2019-12-27 04:50:21,117 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-27 04:50:21,158 INFO L132 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-27 04:50:21,159 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:50:21,165 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. [2019-12-27 04:50:21,168 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-27 04:50:21,186 INFO L132 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-27 04:50:21,186 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:50:21,187 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. [2019-12-27 04:50:21,190 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 684 [2019-12-27 04:50:21,191 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:50:21,845 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1213 [2019-12-27 04:50:21,845 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 04:50:21,849 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-27 04:50:21,869 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 206 states. [2019-12-27 04:50:21,871 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-12-27 04:50:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 04:50:21,877 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:21,878 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 04:50:21,879 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:50:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:21,885 INFO L82 PathProgramCache]: Analyzing trace with hash 197558128, now seen corresponding path program 1 times [2019-12-27 04:50:21,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:21,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394425454] [2019-12-27 04:50:21,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:22,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394425454] [2019-12-27 04:50:22,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:22,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:50:22,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053840420] [2019-12-27 04:50:22,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:50:22,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:22,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:50:22,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:50:22,155 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2019-12-27 04:50:22,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:22,197 INFO L93 Difference]: Finished difference Result 142 states and 378 transitions. [2019-12-27 04:50:22,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:50:22,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 04:50:22,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:22,214 INFO L225 Difference]: With dead ends: 142 [2019-12-27 04:50:22,215 INFO L226 Difference]: Without dead ends: 142 [2019-12-27 04:50:22,216 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 [2019-12-27 04:50:22,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-27 04:50:22,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-12-27 04:50:22,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-27 04:50:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 378 transitions. [2019-12-27 04:50:22,274 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 378 transitions. Word has length 5 [2019-12-27 04:50:22,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:22,275 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 378 transitions. [2019-12-27 04:50:22,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:50:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 378 transitions. [2019-12-27 04:50:22,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:50:22,276 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:22,276 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:22,276 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 04:50:22,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:22,277 INFO L82 PathProgramCache]: Analyzing trace with hash 197335581, now seen corresponding path program 1 times [2019-12-27 04:50:22,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:22,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344643834] [2019-12-27 04:50:22,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:22,351 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:50:22,351 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:50:22,352 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:50:22,353 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 04:50:22,361 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,361 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,362 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,362 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,363 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,363 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,363 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,364 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,367 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,368 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,368 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,368 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,368 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,371 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,371 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,371 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,372 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,374 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,374 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,375 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,378 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,378 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:22,380 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 04:50:22,380 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:50:22,380 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:50:22,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:50:22,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:50:22,381 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:50:22,381 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:50:22,381 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:50:22,381 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:50:22,384 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 70 transitions [2019-12-27 04:50:22,384 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-27 04:50:22,418 INFO L132 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-27 04:50:22,418 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 04:50:22,420 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. [2019-12-27 04:50:22,428 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-27 04:50:22,458 INFO L132 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-27 04:50:22,458 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 04:50:22,459 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. [2019-12-27 04:50:22,467 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1346 [2019-12-27 04:50:22,467 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:50:22,994 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-12-27 04:50:23,039 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3454 [2019-12-27 04:50:23,040 INFO L214 etLargeBlockEncoding]: Total number of compositions: 37 [2019-12-27 04:50:23,040 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 37 transitions [2019-12-27 04:50:23,140 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1941 states. [2019-12-27 04:50:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states. [2019-12-27 04:50:23,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 04:50:23,141 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:23,141 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 04:50:23,142 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:50:23,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:23,142 INFO L82 PathProgramCache]: Analyzing trace with hash 326900749, now seen corresponding path program 1 times [2019-12-27 04:50:23,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:23,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005347400] [2019-12-27 04:50:23,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:23,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005347400] [2019-12-27 04:50:23,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:23,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:50:23,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266604876] [2019-12-27 04:50:23,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:50:23,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:23,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:50:23,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:50:23,221 INFO L87 Difference]: Start difference. First operand 1941 states. Second operand 3 states. [2019-12-27 04:50:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:23,286 INFO L93 Difference]: Finished difference Result 1248 states and 4550 transitions. [2019-12-27 04:50:23,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:50:23,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 04:50:23,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:23,308 INFO L225 Difference]: With dead ends: 1248 [2019-12-27 04:50:23,308 INFO L226 Difference]: Without dead ends: 1248 [2019-12-27 04:50:23,309 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 [2019-12-27 04:50:23,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2019-12-27 04:50:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2019-12-27 04:50:23,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1248 states. [2019-12-27 04:50:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 4550 transitions. [2019-12-27 04:50:23,429 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 4550 transitions. Word has length 5 [2019-12-27 04:50:23,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:23,429 INFO L462 AbstractCegarLoop]: Abstraction has 1248 states and 4550 transitions. [2019-12-27 04:50:23,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:50:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 4550 transitions. [2019-12-27 04:50:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:50:23,432 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:23,432 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:23,433 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:50:23,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:23,434 INFO L82 PathProgramCache]: Analyzing trace with hash -803382983, now seen corresponding path program 1 times [2019-12-27 04:50:23,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:23,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272785128] [2019-12-27 04:50:23,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:23,507 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:50:23,507 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:50:23,507 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:50:23,508 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 04:50:23,517 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,517 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,517 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,518 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,518 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,518 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,518 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,519 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,519 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,519 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,519 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,519 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,520 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,520 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,521 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,521 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,521 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,521 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,521 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,522 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,522 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,522 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,522 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,523 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,523 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,523 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,523 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,523 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,524 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,524 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,524 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,524 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,525 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,525 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,525 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,526 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,526 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,526 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,527 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,528 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,528 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,528 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,532 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,532 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,533 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,536 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,536 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:23,540 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 04:50:23,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:50:23,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:50:23,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:50:23,542 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:50:23,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:50:23,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:50:23,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:50:23,543 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:50:23,544 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions [2019-12-27 04:50:23,544 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-27 04:50:23,560 INFO L132 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-27 04:50:23,561 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 04:50:23,563 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 228 event pairs. 0/76 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-27 04:50:23,567 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-27 04:50:23,581 INFO L132 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-27 04:50:23,581 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 04:50:23,583 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 228 event pairs. 0/76 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-27 04:50:23,587 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2228 [2019-12-27 04:50:23,587 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:50:24,208 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5410 [2019-12-27 04:50:24,209 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2019-12-27 04:50:24,209 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 48 transitions [2019-12-27 04:50:25,046 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11660 states. [2019-12-27 04:50:25,047 INFO L276 IsEmpty]: Start isEmpty. Operand 11660 states. [2019-12-27 04:50:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 04:50:25,047 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:25,048 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 04:50:25,048 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:50:25,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:25,048 INFO L82 PathProgramCache]: Analyzing trace with hash 494303321, now seen corresponding path program 1 times [2019-12-27 04:50:25,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:25,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777597596] [2019-12-27 04:50:25,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:25,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777597596] [2019-12-27 04:50:25,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:25,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:50:25,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749882723] [2019-12-27 04:50:25,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:50:25,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:25,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:50:25,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:50:25,105 INFO L87 Difference]: Start difference. First operand 11660 states. Second operand 3 states. [2019-12-27 04:50:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:25,246 INFO L93 Difference]: Finished difference Result 6178 states and 28552 transitions. [2019-12-27 04:50:25,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:50:25,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 04:50:25,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:25,423 INFO L225 Difference]: With dead ends: 6178 [2019-12-27 04:50:25,424 INFO L226 Difference]: Without dead ends: 6178 [2019-12-27 04:50:25,424 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 [2019-12-27 04:50:25,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2019-12-27 04:50:25,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2019-12-27 04:50:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6178 states. [2019-12-27 04:50:25,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 28552 transitions. [2019-12-27 04:50:25,717 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 28552 transitions. Word has length 5 [2019-12-27 04:50:25,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:25,717 INFO L462 AbstractCegarLoop]: Abstraction has 6178 states and 28552 transitions. [2019-12-27 04:50:25,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:50:25,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 28552 transitions. [2019-12-27 04:50:25,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 04:50:25,719 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:25,719 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:25,719 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:50:25,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:25,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1035578516, now seen corresponding path program 1 times [2019-12-27 04:50:25,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:25,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145089661] [2019-12-27 04:50:25,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:25,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145089661] [2019-12-27 04:50:25,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:25,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:50:25,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761452505] [2019-12-27 04:50:25,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:50:25,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:25,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:50:25,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:50:25,758 INFO L87 Difference]: Start difference. First operand 6178 states and 28552 transitions. Second operand 3 states. [2019-12-27 04:50:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:25,814 INFO L93 Difference]: Finished difference Result 1170 states and 3867 transitions. [2019-12-27 04:50:25,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:50:25,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 04:50:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:25,832 INFO L225 Difference]: With dead ends: 1170 [2019-12-27 04:50:25,832 INFO L226 Difference]: Without dead ends: 1170 [2019-12-27 04:50:25,834 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 [2019-12-27 04:50:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-12-27 04:50:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 918. [2019-12-27 04:50:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-12-27 04:50:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3069 transitions. [2019-12-27 04:50:25,867 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3069 transitions. Word has length 12 [2019-12-27 04:50:25,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:25,867 INFO L462 AbstractCegarLoop]: Abstraction has 918 states and 3069 transitions. [2019-12-27 04:50:25,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:50:25,868 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3069 transitions. [2019-12-27 04:50:25,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 04:50:25,873 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:25,873 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:25,873 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:50:25,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:25,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1220513135, now seen corresponding path program 1 times [2019-12-27 04:50:25,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:25,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435449126] [2019-12-27 04:50:25,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:25,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435449126] [2019-12-27 04:50:25,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:25,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:50:25,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809895007] [2019-12-27 04:50:25,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:50:25,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:25,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:50:25,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:50:25,953 INFO L87 Difference]: Start difference. First operand 918 states and 3069 transitions. Second operand 5 states. [2019-12-27 04:50:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:26,148 INFO L93 Difference]: Finished difference Result 1834 states and 6049 transitions. [2019-12-27 04:50:26,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:50:26,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 04:50:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:26,162 INFO L225 Difference]: With dead ends: 1834 [2019-12-27 04:50:26,163 INFO L226 Difference]: Without dead ends: 1834 [2019-12-27 04:50:26,164 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 [2019-12-27 04:50:26,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2019-12-27 04:50:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1582. [2019-12-27 04:50:26,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-12-27 04:50:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5251 transitions. [2019-12-27 04:50:26,211 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5251 transitions. Word has length 14 [2019-12-27 04:50:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:26,212 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 5251 transitions. [2019-12-27 04:50:26,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:50:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5251 transitions. [2019-12-27 04:50:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 04:50:26,214 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:26,214 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:26,214 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:50:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:26,214 INFO L82 PathProgramCache]: Analyzing trace with hash -235861924, now seen corresponding path program 1 times [2019-12-27 04:50:26,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:26,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536898107] [2019-12-27 04:50:26,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:26,239 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:50:26,240 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:50:26,240 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:50:26,240 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 04:50:26,250 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,251 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,251 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,251 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,251 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,252 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,252 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,252 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,252 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,252 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,253 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,253 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,253 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,253 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,253 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,254 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,254 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,254 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,254 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,254 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,255 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,255 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,255 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,255 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,255 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,255 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,255 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,257 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,257 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,257 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,257 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,258 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,258 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,259 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,259 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,259 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,259 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,260 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,260 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,261 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,261 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,261 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,262 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,264 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,264 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,266 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,266 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,266 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,266 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,268 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,268 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,268 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,268 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,274 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,274 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,274 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,274 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:26,275 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 04:50:26,276 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:50:26,276 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:50:26,276 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:50:26,276 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:50:26,276 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:50:26,276 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:50:26,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:50:26,277 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:50:26,278 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions [2019-12-27 04:50:26,278 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-27 04:50:26,296 INFO L132 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-27 04:50:26,296 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 04:50:26,298 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 268 event pairs. 0/92 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-27 04:50:26,305 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-27 04:50:26,321 INFO L132 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-27 04:50:26,321 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 04:50:26,324 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 268 event pairs. 0/92 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-27 04:50:26,331 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3330 [2019-12-27 04:50:26,331 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:50:27,031 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9271 [2019-12-27 04:50:27,031 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2019-12-27 04:50:27,031 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 63 transitions [2019-12-27 04:50:49,877 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 95237 states. [2019-12-27 04:50:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 95237 states. [2019-12-27 04:50:49,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 04:50:49,877 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:49,877 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 04:50:49,878 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]=== [2019-12-27 04:50:49,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:49,878 INFO L82 PathProgramCache]: Analyzing trace with hash 697118454, now seen corresponding path program 1 times [2019-12-27 04:50:49,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:49,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196316895] [2019-12-27 04:50:49,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:49,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:49,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196316895] [2019-12-27 04:50:49,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:49,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:50:49,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146002737] [2019-12-27 04:50:49,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:50:49,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:49,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:50:49,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:50:49,912 INFO L87 Difference]: Start difference. First operand 95237 states. Second operand 3 states. [2019-12-27 04:50:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:50,295 INFO L93 Difference]: Finished difference Result 40788 states and 229180 transitions. [2019-12-27 04:50:50,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:50:50,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 04:50:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:50,598 INFO L225 Difference]: With dead ends: 40788 [2019-12-27 04:50:50,598 INFO L226 Difference]: Without dead ends: 40788 [2019-12-27 04:50:50,598 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 [2019-12-27 04:50:53,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40788 states. [2019-12-27 04:50:54,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40788 to 40788. [2019-12-27 04:50:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40788 states. [2019-12-27 04:50:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40788 states to 40788 states and 229180 transitions. [2019-12-27 04:50:55,179 INFO L78 Accepts]: Start accepts. Automaton has 40788 states and 229180 transitions. Word has length 5 [2019-12-27 04:50:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:55,179 INFO L462 AbstractCegarLoop]: Abstraction has 40788 states and 229180 transitions. [2019-12-27 04:50:55,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:50:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 40788 states and 229180 transitions. [2019-12-27 04:50:55,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 04:50:55,180 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:55,180 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:55,181 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]=== [2019-12-27 04:50:55,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:55,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1504057243, now seen corresponding path program 1 times [2019-12-27 04:50:55,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:55,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53431204] [2019-12-27 04:50:55,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:55,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53431204] [2019-12-27 04:50:55,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:55,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:50:55,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674309621] [2019-12-27 04:50:55,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:50:55,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:55,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:50:55,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:50:55,225 INFO L87 Difference]: Start difference. First operand 40788 states and 229180 transitions. Second operand 3 states. [2019-12-27 04:50:55,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:55,269 INFO L93 Difference]: Finished difference Result 3144 states and 11932 transitions. [2019-12-27 04:50:55,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:50:55,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 04:50:55,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:55,287 INFO L225 Difference]: With dead ends: 3144 [2019-12-27 04:50:55,287 INFO L226 Difference]: Without dead ends: 3144 [2019-12-27 04:50:55,288 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 [2019-12-27 04:50:55,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2019-12-27 04:50:55,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2428. [2019-12-27 04:50:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2019-12-27 04:50:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 9334 transitions. [2019-12-27 04:50:55,363 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 9334 transitions. Word has length 12 [2019-12-27 04:50:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:55,364 INFO L462 AbstractCegarLoop]: Abstraction has 2428 states and 9334 transitions. [2019-12-27 04:50:55,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:50:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 9334 transitions. [2019-12-27 04:50:55,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 04:50:55,365 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:55,365 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:55,366 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]=== [2019-12-27 04:50:55,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:55,366 INFO L82 PathProgramCache]: Analyzing trace with hash -559629700, now seen corresponding path program 1 times [2019-12-27 04:50:55,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:55,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38609270] [2019-12-27 04:50:55,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:50:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:50:55,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38609270] [2019-12-27 04:50:55,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:50:55,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:50:55,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103445543] [2019-12-27 04:50:55,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:50:55,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:50:55,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:50:55,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:50:55,418 INFO L87 Difference]: Start difference. First operand 2428 states and 9334 transitions. Second operand 5 states. [2019-12-27 04:50:55,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:50:55,586 INFO L93 Difference]: Finished difference Result 4948 states and 18750 transitions. [2019-12-27 04:50:55,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:50:55,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 04:50:55,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:50:55,596 INFO L225 Difference]: With dead ends: 4948 [2019-12-27 04:50:55,597 INFO L226 Difference]: Without dead ends: 4948 [2019-12-27 04:50:55,597 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 [2019-12-27 04:50:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4948 states. [2019-12-27 04:50:55,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4948 to 4232. [2019-12-27 04:50:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4232 states. [2019-12-27 04:50:55,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 16152 transitions. [2019-12-27 04:50:55,729 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 16152 transitions. Word has length 14 [2019-12-27 04:50:55,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:50:55,729 INFO L462 AbstractCegarLoop]: Abstraction has 4232 states and 16152 transitions. [2019-12-27 04:50:55,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:50:55,730 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 16152 transitions. [2019-12-27 04:50:55,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 04:50:55,735 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:50:55,735 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:50:55,735 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]=== [2019-12-27 04:50:55,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:50:55,736 INFO L82 PathProgramCache]: Analyzing trace with hash 433232067, now seen corresponding path program 1 times [2019-12-27 04:50:55,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:50:55,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491497667] [2019-12-27 04:50:55,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:50:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 04:50:56,936 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 04:50:56,937 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 04:50:56,937 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 04:50:56,938 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 04:50:56,958 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,959 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,959 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,959 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,960 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,960 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,960 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,960 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,961 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,961 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,961 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,961 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,961 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,962 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,962 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,962 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,962 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,962 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,963 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,963 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,963 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,963 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,963 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,963 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,964 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,964 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,964 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,964 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,964 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,964 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,971 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,972 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,972 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,972 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,973 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,973 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,973 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,973 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,974 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,974 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,974 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,974 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,976 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,976 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,976 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,976 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,977 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,977 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,979 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,979 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,980 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,980 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,980 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,980 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,981 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,981 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,981 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,981 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,981 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,982 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,982 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,982 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,983 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,983 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,985 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,985 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,986 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,986 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,988 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,988 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,988 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,988 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,990 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,991 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:56,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,006 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,007 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,007 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:50:57,009 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 04:50:57,009 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:50:57,009 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:50:57,010 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:50:57,010 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:50:57,010 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:50:57,010 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:50:57,010 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:50:57,010 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:50:57,012 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 139 transitions [2019-12-27 04:50:57,013 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-27 04:50:57,042 INFO L132 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-27 04:50:57,043 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 04:50:57,047 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 328 event pairs. 0/108 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-27 04:50:57,061 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-27 04:50:57,090 INFO L132 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-27 04:50:57,091 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 04:50:57,094 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 328 event pairs. 0/108 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-27 04:50:57,107 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4652 [2019-12-27 04:50:57,107 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:50:57,788 INFO L206 etLargeBlockEncoding]: Checked pairs total: 15559 [2019-12-27 04:50:57,788 INFO L214 etLargeBlockEncoding]: Total number of compositions: 75 [2019-12-27 04:50:57,789 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 76 transitions Received shutdown request... [2019-12-27 04:54:44,477 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 04:54:44,483 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 04:54:44,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:54:44 BasicIcfg [2019-12-27 04:54:44,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:54:44,489 INFO L168 Benchmark]: Toolchain (without parser) took 264618.40 ms. Allocated memory was 139.5 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 102.2 MB in the beginning and 1.0 GB in the end (delta: -914.9 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-12-27 04:54:44,490 INFO L168 Benchmark]: CDTParser took 1.91 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 04:54:44,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.61 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 162.3 MB in the end (delta: -60.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-12-27 04:54:44,495 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 202.9 MB. Free memory was 162.3 MB in the beginning and 159.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-12-27 04:54:44,500 INFO L168 Benchmark]: Boogie Preprocessor took 25.34 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 04:54:44,501 INFO L168 Benchmark]: RCFGBuilder took 432.43 ms. Allocated memory is still 202.9 MB. Free memory was 158.5 MB in the beginning and 139.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:54:44,506 INFO L168 Benchmark]: TraceAbstraction took 263479.72 ms. Allocated memory was 202.9 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 139.9 MB in the beginning and 1.0 GB in the end (delta: -877.2 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-12-27 04:54:44,514 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.91 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.61 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 162.3 MB in the end (delta: -60.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 202.9 MB. Free memory was 162.3 MB in the beginning and 159.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.34 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.43 ms. Allocated memory is still 202.9 MB. Free memory was 158.5 MB in the beginning and 139.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263479.72 ms. Allocated memory was 202.9 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 139.9 MB in the beginning and 1.0 GB in the end (delta: -877.2 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, 277 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1213 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 69 ProgramPointsBefore, 37 ProgramPointsAfterwards, 70 TransitionsBefore, 37 TransitionsAfterwards, 1346 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 548 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3454 CheckedPairsTotal, 37 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 91 ProgramPointsBefore, 49 ProgramPointsAfterwards, 93 TransitionsBefore, 48 TransitionsAfterwards, 2228 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 10 ConcurrentYvCompositions, 10 ChoiceCompositions, 766 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5410 CheckedPairsTotal, 50 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 113 ProgramPointsBefore, 63 ProgramPointsAfterwards, 116 TransitionsBefore, 63 TransitionsAfterwards, 3330 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 13 ConcurrentYvCompositions, 12 ChoiceCompositions, 1128 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 9271 CheckedPairsTotal, 62 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 135 ProgramPointsBefore, 76 ProgramPointsAfterwards, 139 TransitionsBefore, 76 TransitionsAfterwards, 4652 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 15 ConcurrentYvCompositions, 15 ChoiceCompositions, 1412 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 15559 CheckedPairsTotal, 75 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 76 places, 76 transitions. Already constructed 368649 states. Currently 62758 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 227.4s, 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