/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-wmm/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:05:49,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:05:49,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:05:49,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:05:49,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:05:49,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:05:49,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:05:49,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:05:49,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:05:49,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:05:49,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:05:49,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:05:49,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:05:49,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:05:49,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:05:49,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:05:49,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:05:49,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:05:49,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:05:49,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:05:49,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:05:49,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:05:49,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:05:49,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:05:49,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 19:05:49,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 19:05:49,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 19:05:49,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 19:05:49,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 19:05:49,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 19:05:49,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:05:49,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:05:49,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:05:49,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:05:49,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:05:49,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:05:49,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:05:49,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:05:49,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:05:49,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:05:49,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:05:49,114 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 19:05:49,133 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:05:49,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:05:49,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:05:49,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:05:49,135 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:05:49,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:05:49,135 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:05:49,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:05:49,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:05:49,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:05:49,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:05:49,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:05:49,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:05:49,137 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:05:49,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:05:49,137 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:05:49,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:05:49,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:05:49,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:05:49,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:05:49,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:05:49,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:05:49,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:05:49,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:05:49,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:05:49,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:05:49,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:05:49,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:05:49,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:05:49,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:05:49,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:05:49,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:05:49,440 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:05:49,440 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:05:49,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-18 19:05:49,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef7288d0/e1a30c308aa04646a977cd14a9313c81/FLAGb7107e394 [2019-12-18 19:05:50,100 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:05:50,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-18 19:05:50,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef7288d0/e1a30c308aa04646a977cd14a9313c81/FLAGb7107e394 [2019-12-18 19:05:50,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef7288d0/e1a30c308aa04646a977cd14a9313c81 [2019-12-18 19:05:50,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:05:50,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:05:50,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:05:50,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:05:50,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:05:50,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:05:50" (1/1) ... [2019-12-18 19:05:50,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2908c1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:50, skipping insertion in model container [2019-12-18 19:05:50,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:05:50" (1/1) ... [2019-12-18 19:05:50,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:05:50,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:05:50,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:05:50,934 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:05:51,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:05:51,078 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:05:51,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51 WrapperNode [2019-12-18 19:05:51,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:05:51,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:05:51,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:05:51,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:05:51,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:05:51,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:05:51,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:05:51,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:05:51,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (1/1) ... [2019-12-18 19:05:51,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:05:51,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:05:51,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:05:51,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:05:51,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (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 19:05:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:05:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 19:05:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:05:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:05:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 19:05:51,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 19:05:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 19:05:51,220 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 19:05:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 19:05:51,220 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 19:05:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 19:05:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:05:51,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:05:51,222 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 19:05:51,561 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:05:51,561 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 19:05:51,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:05:51 BoogieIcfgContainer [2019-12-18 19:05:51,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:05:51,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:05:51,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:05:51,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:05:51,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:05:50" (1/3) ... [2019-12-18 19:05:51,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8a1293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:05:51, skipping insertion in model container [2019-12-18 19:05:51,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:05:51" (2/3) ... [2019-12-18 19:05:51,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8a1293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:05:51, skipping insertion in model container [2019-12-18 19:05:51,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:05:51" (3/3) ... [2019-12-18 19:05:51,571 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2019-12-18 19:05:51,580 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:05:51,581 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:05:51,587 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:05:51,589 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:05:51,618 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,618 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,618 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,619 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,619 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,620 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,620 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,620 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,620 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,621 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,621 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,621 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,622 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,622 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,622 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,622 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,623 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,623 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,626 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,626 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,627 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,627 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,633 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,634 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,634 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,635 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,637 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,637 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,638 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,638 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:05:51,649 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:05:51,667 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:05:51,667 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:05:51,667 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:05:51,667 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:05:51,667 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:05:51,668 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:05:51,668 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:05:51,668 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:05:51,679 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 19:05:51,681 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 19:05:51,720 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 19:05:51,721 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:05:51,728 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:05:51,732 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 19:05:51,751 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 19:05:51,751 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:05:51,752 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:05:51,754 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 19:05:51,755 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 19:05:53,137 INFO L206 etLargeBlockEncoding]: Checked pairs total: 469 [2019-12-18 19:05:53,138 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 19:05:53,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 19:05:53,150 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 19:05:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 19:05:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:05:53,158 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:05:53,159 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:05:53,159 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:05:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:05:53,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1445202822, now seen corresponding path program 1 times [2019-12-18 19:05:53,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:05:53,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600132847] [2019-12-18 19:05:53,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:05:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:05:53,377 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 19:05:53,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600132847] [2019-12-18 19:05:53,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:05:53,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:05:53,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854898128] [2019-12-18 19:05:53,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:05:53,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:05:53,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:05:53,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:05:53,404 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 19:05:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:05:53,432 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-18 19:05:53,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:05:53,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 19:05:53,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:05:53,461 INFO L225 Difference]: With dead ends: 52 [2019-12-18 19:05:53,462 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 19:05:53,463 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 19:05:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 19:05:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 19:05:53,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 19:05:53,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 19:05:53,506 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 19:05:53,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:05:53,508 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 19:05:53,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:05:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 19:05:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:05:53,511 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:05:53,511 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:05:53,511 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:05:53,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:05:53,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1662106288, now seen corresponding path program 1 times [2019-12-18 19:05:53,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:05:53,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472969415] [2019-12-18 19:05:53,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:05:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:05:53,603 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 19:05:53,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472969415] [2019-12-18 19:05:53,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:05:53,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:05:53,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085551491] [2019-12-18 19:05:53,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:05:53,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:05:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:05:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:05:53,606 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 19:05:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:05:53,617 INFO L93 Difference]: Finished difference Result 35 states and 66 transitions. [2019-12-18 19:05:53,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:05:53,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:05:53,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:05:53,619 INFO L225 Difference]: With dead ends: 35 [2019-12-18 19:05:53,619 INFO L226 Difference]: Without dead ends: 35 [2019-12-18 19:05:53,620 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 19:05:53,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-18 19:05:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-18 19:05:53,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-18 19:05:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 66 transitions. [2019-12-18 19:05:53,627 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 66 transitions. Word has length 9 [2019-12-18 19:05:53,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:05:53,627 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 66 transitions. [2019-12-18 19:05:53,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:05:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2019-12-18 19:05:53,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:05:53,628 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:05:53,628 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:05:53,629 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:05:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:05:53,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1851665460, now seen corresponding path program 1 times [2019-12-18 19:05:53,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:05:53,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765441336] [2019-12-18 19:05:53,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:05:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:05:53,702 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 19:05:53,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765441336] [2019-12-18 19:05:53,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:05:53,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:05:53,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629185445] [2019-12-18 19:05:53,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:05:53,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:05:53,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:05:53,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:05:53,705 INFO L87 Difference]: Start difference. First operand 35 states and 66 transitions. Second operand 3 states. [2019-12-18 19:05:53,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:05:53,714 INFO L93 Difference]: Finished difference Result 38 states and 65 transitions. [2019-12-18 19:05:53,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:05:53,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:05:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:05:53,716 INFO L225 Difference]: With dead ends: 38 [2019-12-18 19:05:53,716 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 19:05:53,716 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:05:53,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 19:05:53,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-12-18 19:05:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-18 19:05:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 57 transitions. [2019-12-18 19:05:53,721 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 57 transitions. Word has length 9 [2019-12-18 19:05:53,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:05:53,722 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 57 transitions. [2019-12-18 19:05:53,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:05:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2019-12-18 19:05:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:05:53,723 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:05:53,723 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:05:53,723 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:05:53,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:05:53,724 INFO L82 PathProgramCache]: Analyzing trace with hash -6187364, now seen corresponding path program 1 times [2019-12-18 19:05:53,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:05:53,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110964971] [2019-12-18 19:05:53,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:05:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:05:53,761 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 19:05:53,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110964971] [2019-12-18 19:05:53,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:05:53,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:05:53,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293816284] [2019-12-18 19:05:53,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:05:53,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:05:53,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:05:53,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:05:53,764 INFO L87 Difference]: Start difference. First operand 33 states and 57 transitions. Second operand 3 states. [2019-12-18 19:05:53,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:05:53,778 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2019-12-18 19:05:53,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:05:53,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 19:05:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:05:53,779 INFO L225 Difference]: With dead ends: 37 [2019-12-18 19:05:53,780 INFO L226 Difference]: Without dead ends: 23 [2019-12-18 19:05:53,780 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:05:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-18 19:05:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-12-18 19:05:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 19:05:53,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-12-18 19:05:53,783 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 10 [2019-12-18 19:05:53,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:05:53,784 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-18 19:05:53,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:05:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-12-18 19:05:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:05:53,785 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:05:53,785 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:05:53,785 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:05:53,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:05:53,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1567103428, now seen corresponding path program 1 times [2019-12-18 19:05:53,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:05:53,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104139362] [2019-12-18 19:05:53,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:05:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:05:53,896 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 19:05:53,897 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104139362] [2019-12-18 19:05:53,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:05:53,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:05:53,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870907464] [2019-12-18 19:05:53,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 19:05:53,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:05:53,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 19:05:53,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:05:53,899 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand 6 states. [2019-12-18 19:05:53,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:05:53,961 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2019-12-18 19:05:53,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:05:53,961 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 19:05:53,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:05:53,962 INFO L225 Difference]: With dead ends: 22 [2019-12-18 19:05:53,962 INFO L226 Difference]: Without dead ends: 14 [2019-12-18 19:05:53,963 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 19:05:53,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-18 19:05:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-18 19:05:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-18 19:05:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-18 19:05:53,965 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2019-12-18 19:05:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:05:53,965 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-18 19:05:53,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 19:05:53,966 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-18 19:05:53,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:05:53,966 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:05:53,967 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:05:53,967 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:05:53,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:05:53,967 INFO L82 PathProgramCache]: Analyzing trace with hash 505163460, now seen corresponding path program 1 times [2019-12-18 19:05:53,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:05:53,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819630368] [2019-12-18 19:05:53,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:05:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:05:54,012 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 19:05:54,013 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819630368] [2019-12-18 19:05:54,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:05:54,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:05:54,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830240564] [2019-12-18 19:05:54,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:05:54,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:05:54,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:05:54,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:05:54,015 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-18 19:05:54,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:05:54,028 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-18 19:05:54,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:05:54,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:05:54,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:05:54,028 INFO L225 Difference]: With dead ends: 13 [2019-12-18 19:05:54,029 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:05:54,029 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:05:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:05:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:05:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:05:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:05:54,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 19:05:54,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:05:54,031 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:05:54,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:05:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:05:54,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:05:54,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:05:54 BasicIcfg [2019-12-18 19:05:54,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:05:54,045 INFO L168 Benchmark]: Toolchain (without parser) took 3656.63 ms. Allocated memory was 145.8 MB in the beginning and 245.4 MB in the end (delta: 99.6 MB). Free memory was 100.7 MB in the beginning and 142.6 MB in the end (delta: -42.0 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. [2019-12-18 19:05:54,046 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 19:05:54,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.03 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 159.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 19:05:54,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.47 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 19:05:54,051 INFO L168 Benchmark]: Boogie Preprocessor took 26.88 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 19:05:54,052 INFO L168 Benchmark]: RCFGBuilder took 407.30 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-18 19:05:54,052 INFO L168 Benchmark]: TraceAbstraction took 2475.38 ms. Allocated memory was 202.4 MB in the beginning and 245.4 MB in the end (delta: 43.0 MB). Free memory was 135.3 MB in the beginning and 142.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2019-12-18 19:05:54,061 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.03 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 159.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.47 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.88 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 407.30 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2475.38 ms. Allocated memory was 202.4 MB in the beginning and 245.4 MB in the end (delta: 43.0 MB). Free memory was 135.3 MB in the beginning and 142.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 240 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 469 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 21 SDslu, 44 SDs, 0 SdLazy, 34 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...