/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:50:11,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:50:11,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:50:11,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:50:11,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:50:11,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:50:11,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:50:11,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:50:11,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:50:11,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:50:11,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:50:11,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:50:11,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:50:11,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:50:11,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:50:11,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:50:11,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:50:11,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:50:11,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:50:11,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:50:11,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:50:11,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:50:11,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:50:11,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:50:11,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 15:50:11,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 15:50:11,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 15:50:11,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 15:50:11,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 15:50:11,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 15:50:11,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:50:11,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:50:11,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:50:11,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:50:11,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:50:11,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:50:11,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:50:11,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:50:11,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:50:11,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:50:11,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:50:11,857 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-SemanticLbe.epf [2019-12-18 15:50:11,881 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:50:11,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:50:11,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:50:11,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:50:11,883 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:50:11,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:50:11,883 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:50:11,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:50:11,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:50:11,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:50:11,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:50:11,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:50:11,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:50:11,884 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:50:11,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:50:11,885 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:50:11,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:50:11,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:50:11,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:50:11,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:50:11,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:50:11,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:50:11,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:50:11,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:50:11,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:50:11,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:50:11,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:50:11,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:50:11,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:50:12,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:50:12,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:50:12,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:50:12,182 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:50:12,183 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:50:12,184 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-18 15:50:12,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0630a6c6/e62e2da9b02940eaa73844d24af10fb5/FLAG2bcc0c515 [2019-12-18 15:50:12,820 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:50:12,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-18 15:50:12,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0630a6c6/e62e2da9b02940eaa73844d24af10fb5/FLAG2bcc0c515 [2019-12-18 15:50:13,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0630a6c6/e62e2da9b02940eaa73844d24af10fb5 [2019-12-18 15:50:13,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:50:13,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:50:13,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:50:13,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:50:13,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:50:13,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50220612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13, skipping insertion in model container [2019-12-18 15:50:13,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:50:13,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:50:13,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:50:13,782 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:50:13,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:50:13,911 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:50:13,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13 WrapperNode [2019-12-18 15:50:13,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:50:13,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:50:13,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:50:13,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:50:13,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:50:13,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:50:13,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:50:13,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:50:13,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... [2019-12-18 15:50:13,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:50:13,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:50:13,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:50:13,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:50:13,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:50:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-18 15:50:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-18 15:50:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 15:50:14,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 15:50:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:50:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:50:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:50:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:50:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:50:14,059 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:50:14,263 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 15:50:14,264 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 15:50:14,315 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 15:50:14,319 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 15:50:14,417 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:50:14,417 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-18 15:50:14,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:50:14 BoogieIcfgContainer [2019-12-18 15:50:14,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:50:14,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:50:14,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:50:14,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:50:14,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:50:13" (1/3) ... [2019-12-18 15:50:14,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c075504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:50:14, skipping insertion in model container [2019-12-18 15:50:14,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:50:13" (2/3) ... [2019-12-18 15:50:14,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c075504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:50:14, skipping insertion in model container [2019-12-18 15:50:14,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:50:14" (3/3) ... [2019-12-18 15:50:14,427 INFO L109 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2019-12-18 15:50:14,438 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:50:14,438 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:50:14,446 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:50:14,447 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:50:14,470 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,471 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,471 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,471 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,472 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,472 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,473 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,473 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,474 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,474 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,474 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,475 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,481 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,481 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,481 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,482 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,495 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,495 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,496 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,497 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:14,514 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:50:14,532 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:50:14,532 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:50:14,532 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:50:14,532 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:50:14,532 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:50:14,533 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:50:14,533 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:50:14,533 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:50:14,545 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 47 transitions [2019-12-18 15:50:14,547 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-18 15:50:14,581 INFO L126 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-18 15:50:14,582 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:14,589 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 8/52 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-18 15:50:14,595 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-18 15:50:14,612 INFO L126 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-18 15:50:14,612 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:14,613 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 8/52 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-18 15:50:14,616 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 684 [2019-12-18 15:50:14,617 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:50:15,331 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1213 [2019-12-18 15:50:15,332 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 15:50:15,336 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-18 15:50:15,355 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 206 states. [2019-12-18 15:50:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-12-18 15:50:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 15:50:15,365 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:15,366 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 15:50:15,366 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:50:15,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:15,373 INFO L82 PathProgramCache]: Analyzing trace with hash 197558128, now seen corresponding path program 1 times [2019-12-18 15:50:15,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:15,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730118440] [2019-12-18 15:50:15,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:15,623 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730118440] [2019-12-18 15:50:15,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:15,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:50:15,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896857638] [2019-12-18 15:50:15,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:50:15,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:15,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:50:15,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:15,650 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2019-12-18 15:50:15,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:15,693 INFO L93 Difference]: Finished difference Result 142 states and 378 transitions. [2019-12-18 15:50:15,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:50:15,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 15:50:15,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:15,710 INFO L225 Difference]: With dead ends: 142 [2019-12-18 15:50:15,710 INFO L226 Difference]: Without dead ends: 142 [2019-12-18 15:50:15,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-18 15:50:15,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-12-18 15:50:15,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-18 15:50:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 378 transitions. [2019-12-18 15:50:15,787 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 378 transitions. Word has length 5 [2019-12-18 15:50:15,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:15,787 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 378 transitions. [2019-12-18 15:50:15,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:50:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 378 transitions. [2019-12-18 15:50:15,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:50:15,788 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:15,789 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:15,789 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:50:15,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:15,790 INFO L82 PathProgramCache]: Analyzing trace with hash 197335581, now seen corresponding path program 1 times [2019-12-18 15:50:15,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:15,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154463779] [2019-12-18 15:50:15,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:15,854 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:50:15,854 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:50:15,856 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:50:15,856 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 15:50:15,869 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,869 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,869 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,870 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,870 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,871 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,878 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,878 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,879 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,879 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,887 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,887 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,888 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,889 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,889 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,889 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,889 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,890 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,890 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,890 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,890 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,894 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,894 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,895 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,895 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,899 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,900 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,900 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,900 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,902 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,902 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,903 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,903 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,905 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,906 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,906 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,906 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:15,908 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 15:50:15,908 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:50:15,908 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:50:15,908 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:50:15,908 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:50:15,909 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:50:15,909 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:50:15,909 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:50:15,909 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:50:15,911 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 70 transitions [2019-12-18 15:50:15,912 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-18 15:50:15,929 INFO L126 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-18 15:50:15,929 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:15,931 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 20/80 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-18 15:50:15,936 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-18 15:50:15,950 INFO L126 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-18 15:50:15,950 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:15,952 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 20/80 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-18 15:50:15,955 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1346 [2019-12-18 15:50:15,956 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:50:16,655 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3193 [2019-12-18 15:50:16,656 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2019-12-18 15:50:16,656 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 36 transitions [2019-12-18 15:50:16,733 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1664 states. [2019-12-18 15:50:16,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states. [2019-12-18 15:50:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 15:50:16,734 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:16,735 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 15:50:16,735 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:50:16,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:16,735 INFO L82 PathProgramCache]: Analyzing trace with hash 328747791, now seen corresponding path program 1 times [2019-12-18 15:50:16,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:16,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864220992] [2019-12-18 15:50:16,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:16,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:16,789 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864220992] [2019-12-18 15:50:16,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:16,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:50:16,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024261567] [2019-12-18 15:50:16,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:50:16,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:16,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:50:16,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:16,792 INFO L87 Difference]: Start difference. First operand 1664 states. Second operand 3 states. [2019-12-18 15:50:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:16,869 INFO L93 Difference]: Finished difference Result 1093 states and 3980 transitions. [2019-12-18 15:50:16,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:50:16,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 15:50:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:16,888 INFO L225 Difference]: With dead ends: 1093 [2019-12-18 15:50:16,889 INFO L226 Difference]: Without dead ends: 1093 [2019-12-18 15:50:16,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:16,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2019-12-18 15:50:16,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2019-12-18 15:50:16,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-12-18 15:50:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 3980 transitions. [2019-12-18 15:50:16,998 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 3980 transitions. Word has length 5 [2019-12-18 15:50:16,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:16,998 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 3980 transitions. [2019-12-18 15:50:16,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:50:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 3980 transitions. [2019-12-18 15:50:17,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:50:17,001 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:17,001 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:17,002 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:50:17,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash -102318405, now seen corresponding path program 1 times [2019-12-18 15:50:17,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:17,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193823828] [2019-12-18 15:50:17,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:17,069 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:50:17,069 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:50:17,070 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:50:17,070 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 15:50:17,079 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,079 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,079 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,079 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,080 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,080 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,080 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,080 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,081 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,081 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,081 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,081 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,081 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,082 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,082 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,082 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,082 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,082 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,083 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,083 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,083 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,083 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,084 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,084 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,084 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,084 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,085 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,085 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,085 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,085 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,085 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,086 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,086 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,086 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,086 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,086 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,087 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,087 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,087 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,087 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,089 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,089 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,090 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,090 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,091 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,091 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,091 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,092 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,093 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,093 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,093 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,094 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,095 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,095 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,095 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,095 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,097 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,097 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,097 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,097 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:17,098 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 15:50:17,099 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:50:17,099 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:50:17,099 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:50:17,099 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:50:17,099 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:50:17,099 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:50:17,099 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:50:17,100 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:50:17,101 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions [2019-12-18 15:50:17,102 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-18 15:50:17,117 INFO L126 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-18 15:50:17,117 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:17,119 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 36/112 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-18 15:50:17,123 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-18 15:50:17,147 INFO L126 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-18 15:50:17,147 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:17,151 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs. 36/112 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-18 15:50:17,155 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2228 [2019-12-18 15:50:17,155 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:50:17,863 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5410 [2019-12-18 15:50:17,863 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2019-12-18 15:50:17,863 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 48 transitions [2019-12-18 15:50:18,720 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11660 states. [2019-12-18 15:50:18,720 INFO L276 IsEmpty]: Start isEmpty. Operand 11660 states. [2019-12-18 15:50:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 15:50:18,720 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:18,720 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 15:50:18,721 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:50:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:18,721 INFO L82 PathProgramCache]: Analyzing trace with hash 496211931, now seen corresponding path program 1 times [2019-12-18 15:50:18,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:18,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005969896] [2019-12-18 15:50:18,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:18,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005969896] [2019-12-18 15:50:18,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:18,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:50:18,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6817218] [2019-12-18 15:50:18,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:50:18,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:18,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:50:18,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:18,780 INFO L87 Difference]: Start difference. First operand 11660 states. Second operand 3 states. [2019-12-18 15:50:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:18,915 INFO L93 Difference]: Finished difference Result 6178 states and 28552 transitions. [2019-12-18 15:50:18,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:50:18,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 15:50:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:18,997 INFO L225 Difference]: With dead ends: 6178 [2019-12-18 15:50:18,998 INFO L226 Difference]: Without dead ends: 6178 [2019-12-18 15:50:18,998 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2019-12-18 15:50:19,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2019-12-18 15:50:19,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6178 states. [2019-12-18 15:50:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 28552 transitions. [2019-12-18 15:50:19,450 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 28552 transitions. Word has length 5 [2019-12-18 15:50:19,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:19,450 INFO L462 AbstractCegarLoop]: Abstraction has 6178 states and 28552 transitions. [2019-12-18 15:50:19,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:50:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 28552 transitions. [2019-12-18 15:50:19,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:50:19,452 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:19,452 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:19,452 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:50:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash -988299756, now seen corresponding path program 1 times [2019-12-18 15:50:19,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:19,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637439147] [2019-12-18 15:50:19,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:19,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:19,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637439147] [2019-12-18 15:50:19,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:19,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:50:19,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156408981] [2019-12-18 15:50:19,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:50:19,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:19,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:50:19,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:19,499 INFO L87 Difference]: Start difference. First operand 6178 states and 28552 transitions. Second operand 3 states. [2019-12-18 15:50:19,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:19,558 INFO L93 Difference]: Finished difference Result 1170 states and 3867 transitions. [2019-12-18 15:50:19,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:50:19,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 15:50:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:19,569 INFO L225 Difference]: With dead ends: 1170 [2019-12-18 15:50:19,570 INFO L226 Difference]: Without dead ends: 1170 [2019-12-18 15:50:19,573 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:19,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-12-18 15:50:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 918. [2019-12-18 15:50:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-12-18 15:50:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3069 transitions. [2019-12-18 15:50:19,612 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3069 transitions. Word has length 12 [2019-12-18 15:50:19,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:19,612 INFO L462 AbstractCegarLoop]: Abstraction has 918 states and 3069 transitions. [2019-12-18 15:50:19,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:50:19,613 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3069 transitions. [2019-12-18 15:50:19,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 15:50:19,619 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:19,619 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:19,619 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:50:19,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:19,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1893678895, now seen corresponding path program 1 times [2019-12-18 15:50:19,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:19,621 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482843154] [2019-12-18 15:50:19,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:19,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482843154] [2019-12-18 15:50:19,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:19,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:50:19,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814872459] [2019-12-18 15:50:19,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:50:19,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:19,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:50:19,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:50:19,702 INFO L87 Difference]: Start difference. First operand 918 states and 3069 transitions. Second operand 5 states. [2019-12-18 15:50:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:19,837 INFO L93 Difference]: Finished difference Result 1834 states and 6049 transitions. [2019-12-18 15:50:19,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 15:50:19,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 15:50:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:19,851 INFO L225 Difference]: With dead ends: 1834 [2019-12-18 15:50:19,851 INFO L226 Difference]: Without dead ends: 1834 [2019-12-18 15:50:19,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:50:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2019-12-18 15:50:19,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1582. [2019-12-18 15:50:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-12-18 15:50:19,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5251 transitions. [2019-12-18 15:50:19,917 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5251 transitions. Word has length 14 [2019-12-18 15:50:19,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:19,917 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 5251 transitions. [2019-12-18 15:50:19,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:50:19,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5251 transitions. [2019-12-18 15:50:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 15:50:19,920 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:19,920 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:19,920 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:50:19,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:19,920 INFO L82 PathProgramCache]: Analyzing trace with hash 437303836, now seen corresponding path program 1 times [2019-12-18 15:50:19,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:19,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446879359] [2019-12-18 15:50:19,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:19,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:50:19,979 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:50:19,980 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:50:19,980 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 15:50:19,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,996 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,996 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,998 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,998 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:19,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,000 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,000 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,002 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,002 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,002 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,003 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,004 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,004 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,004 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,004 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,006 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,006 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,006 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,006 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,008 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,008 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,008 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,008 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,010 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,010 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,010 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,010 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,015 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,015 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,017 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,017 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:20,019 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 15:50:20,019 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:50:20,019 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:50:20,019 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:50:20,019 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:50:20,020 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:50:20,020 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:50:20,020 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:50:20,020 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:50:20,021 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions [2019-12-18 15:50:20,021 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-18 15:50:20,104 INFO L126 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-18 15:50:20,104 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:20,108 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 56/148 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-18 15:50:20,114 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-18 15:50:20,134 INFO L126 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-18 15:50:20,135 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:20,137 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs. 56/148 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-18 15:50:20,143 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3330 [2019-12-18 15:50:20,143 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:50:20,944 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8716 [2019-12-18 15:50:20,945 INFO L214 etLargeBlockEncoding]: Total number of compositions: 64 [2019-12-18 15:50:20,945 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 62 transitions [2019-12-18 15:50:38,067 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 81632 states. [2019-12-18 15:50:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 81632 states. [2019-12-18 15:50:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 15:50:38,067 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:38,068 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 15:50:38,068 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:50:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:38,068 INFO L82 PathProgramCache]: Analyzing trace with hash 700874106, now seen corresponding path program 1 times [2019-12-18 15:50:38,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:38,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996541977] [2019-12-18 15:50:38,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:38,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996541977] [2019-12-18 15:50:38,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:38,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:50:38,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108447806] [2019-12-18 15:50:38,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:50:38,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:38,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:50:38,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:38,103 INFO L87 Difference]: Start difference. First operand 81632 states. Second operand 3 states. [2019-12-18 15:50:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:38,445 INFO L93 Difference]: Finished difference Result 34843 states and 195705 transitions. [2019-12-18 15:50:38,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:50:38,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 15:50:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:38,702 INFO L225 Difference]: With dead ends: 34843 [2019-12-18 15:50:38,702 INFO L226 Difference]: Without dead ends: 34843 [2019-12-18 15:50:38,703 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34843 states. [2019-12-18 15:50:42,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34843 to 34843. [2019-12-18 15:50:42,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34843 states. [2019-12-18 15:50:42,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34843 states to 34843 states and 195705 transitions. [2019-12-18 15:50:42,687 INFO L78 Accepts]: Start accepts. Automaton has 34843 states and 195705 transitions. Word has length 5 [2019-12-18 15:50:42,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:42,687 INFO L462 AbstractCegarLoop]: Abstraction has 34843 states and 195705 transitions. [2019-12-18 15:50:42,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:50:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 34843 states and 195705 transitions. [2019-12-18 15:50:42,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:50:42,688 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:42,688 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:42,689 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:50:42,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:42,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1025197219, now seen corresponding path program 1 times [2019-12-18 15:50:42,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:42,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608313665] [2019-12-18 15:50:42,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:42,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608313665] [2019-12-18 15:50:42,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:42,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:50:42,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306974144] [2019-12-18 15:50:42,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:50:42,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:42,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:50:42,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:42,713 INFO L87 Difference]: Start difference. First operand 34843 states and 195705 transitions. Second operand 3 states. [2019-12-18 15:50:42,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:42,755 INFO L93 Difference]: Finished difference Result 3051 states and 11616 transitions. [2019-12-18 15:50:42,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:50:42,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 15:50:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:42,767 INFO L225 Difference]: With dead ends: 3051 [2019-12-18 15:50:42,767 INFO L226 Difference]: Without dead ends: 3051 [2019-12-18 15:50:42,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:50:42,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2019-12-18 15:50:42,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2335. [2019-12-18 15:50:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2019-12-18 15:50:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 9018 transitions. [2019-12-18 15:50:42,845 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 9018 transitions. Word has length 12 [2019-12-18 15:50:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:42,846 INFO L462 AbstractCegarLoop]: Abstraction has 2335 states and 9018 transitions. [2019-12-18 15:50:42,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:50:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 9018 transitions. [2019-12-18 15:50:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 15:50:42,847 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:42,847 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:42,847 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:50:42,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:42,848 INFO L82 PathProgramCache]: Analyzing trace with hash -897581190, now seen corresponding path program 1 times [2019-12-18 15:50:42,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:42,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555919275] [2019-12-18 15:50:42,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:50:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:50:42,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555919275] [2019-12-18 15:50:42,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:50:42,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:50:42,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979322743] [2019-12-18 15:50:42,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:50:42,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:50:42,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:50:42,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:50:42,886 INFO L87 Difference]: Start difference. First operand 2335 states and 9018 transitions. Second operand 5 states. [2019-12-18 15:50:43,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:50:43,017 INFO L93 Difference]: Finished difference Result 4855 states and 18434 transitions. [2019-12-18 15:50:43,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 15:50:43,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 15:50:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:50:43,034 INFO L225 Difference]: With dead ends: 4855 [2019-12-18 15:50:43,035 INFO L226 Difference]: Without dead ends: 4855 [2019-12-18 15:50:43,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-18 15:50:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2019-12-18 15:50:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4139. [2019-12-18 15:50:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4139 states. [2019-12-18 15:50:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 15836 transitions. [2019-12-18 15:50:43,167 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 15836 transitions. Word has length 14 [2019-12-18 15:50:43,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:50:43,167 INFO L462 AbstractCegarLoop]: Abstraction has 4139 states and 15836 transitions. [2019-12-18 15:50:43,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:50:43,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 15836 transitions. [2019-12-18 15:50:43,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-18 15:50:43,170 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:50:43,170 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:50:43,170 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 15:50:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:50:43,171 INFO L82 PathProgramCache]: Analyzing trace with hash -76262713, now seen corresponding path program 1 times [2019-12-18 15:50:43,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:50:43,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805951334] [2019-12-18 15:50:43,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:50:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 15:50:43,215 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 15:50:43,215 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 15:50:43,215 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 15:50:43,215 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 15:50:43,227 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,227 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,228 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,228 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,228 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,228 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,228 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,228 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,229 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,229 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,229 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,229 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,229 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,229 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,230 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,230 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,230 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,230 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,230 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,230 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,231 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,231 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,231 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,231 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,231 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,232 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,232 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,232 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,232 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,232 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,233 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,233 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,234 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,234 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,236 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,236 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,237 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,237 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,237 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,237 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,237 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,237 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,238 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,238 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,238 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,238 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,240 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,240 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,240 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,240 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,242 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,242 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,242 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,242 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,244 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,244 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,244 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,244 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,246 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,246 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,246 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,247 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,248 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,248 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,248 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,248 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,250 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,250 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,250 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,250 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,252 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,252 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,252 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,252 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,254 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,254 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,254 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,254 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:50:43,258 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-18 15:50:43,258 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:50:43,258 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:50:43,258 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:50:43,259 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:50:43,259 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:50:43,259 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:50:43,259 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:50:43,259 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:50:43,260 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 139 transitions [2019-12-18 15:50:43,261 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-18 15:50:43,275 INFO L126 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-18 15:50:43,276 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:43,279 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 80/188 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-18 15:50:43,288 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-18 15:50:43,705 INFO L126 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-18 15:50:43,705 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:50:43,708 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs. 80/188 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-18 15:50:43,717 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4652 [2019-12-18 15:50:43,717 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:50:44,596 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12277 [2019-12-18 15:50:44,596 INFO L214 etLargeBlockEncoding]: Total number of compositions: 76 [2019-12-18 15:50:44,596 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions Received shutdown request... [2019-12-18 15:54:41,234 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 15:54:41,237 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 15:54:41,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:54:41 BasicIcfg [2019-12-18 15:54:41,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:54:41,240 INFO L168 Benchmark]: Toolchain (without parser) took 268067.87 ms. Allocated memory was 136.8 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 99.4 MB in the beginning and 974.6 MB in the end (delta: -875.2 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-12-18 15:54:41,241 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 15:54:41,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.71 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 98.9 MB in the beginning and 160.3 MB in the end (delta: -61.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-12-18 15:54:41,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 200.8 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 15:54:41,243 INFO L168 Benchmark]: Boogie Preprocessor took 28.46 ms. Allocated memory is still 200.8 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:54:41,244 INFO L168 Benchmark]: RCFGBuilder took 426.90 ms. Allocated memory is still 200.8 MB. Free memory was 156.9 MB in the beginning and 138.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-12-18 15:54:41,245 INFO L168 Benchmark]: TraceAbstraction took 266817.90 ms. Allocated memory was 200.8 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 137.8 MB in the beginning and 974.6 MB in the end (delta: -836.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2019-12-18 15:54:41,249 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.71 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 98.9 MB in the beginning and 160.3 MB in the end (delta: -61.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 200.8 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.46 ms. Allocated memory is still 200.8 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.90 ms. Allocated memory is still 200.8 MB. Free memory was 156.9 MB in the beginning and 138.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266817.90 ms. Allocated memory was 200.8 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 137.8 MB in the beginning and 974.6 MB in the end (delta: -836.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 47 ProgramPointsBefore, 22 ProgramPointsAfterwards, 47 TransitionsBefore, 21 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 6 FixpointIterations, 11 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 286 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 1213 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 69 ProgramPointsBefore, 36 ProgramPointsAfterwards, 70 TransitionsBefore, 36 TransitionsAfterwards, 1346 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 574 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 3193 CheckedPairsTotal, 39 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 91 ProgramPointsBefore, 49 ProgramPointsAfterwards, 93 TransitionsBefore, 48 TransitionsAfterwards, 2228 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 10 ConcurrentYvCompositions, 10 ChoiceCompositions, 772 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 5410 CheckedPairsTotal, 50 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 113 ProgramPointsBefore, 62 ProgramPointsAfterwards, 116 TransitionsBefore, 62 TransitionsAfterwards, 3330 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 13 ConcurrentYvCompositions, 12 ChoiceCompositions, 1209 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 8716 CheckedPairsTotal, 64 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 135 ProgramPointsBefore, 75 ProgramPointsAfterwards, 139 TransitionsBefore, 74 TransitionsAfterwards, 4652 CoEnabledTransitionPairs, 5 FixpointIterations, 38 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 14 ConcurrentYvCompositions, 16 ChoiceCompositions, 1414 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 12277 CheckedPairsTotal, 76 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 706]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 706). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 75 places, 74 transitions. Already constructed 379421 states. Currently 52751 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 237.9s, 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