/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-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:31:15,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:31:15,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:31:15,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:31:15,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:31:15,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:31:15,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:31:15,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:31:15,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:31:15,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:31:15,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:31:15,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:31:15,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:31:15,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:31:15,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:31:15,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:31:15,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:31:15,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:31:15,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:31:15,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:31:15,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:31:15,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:31:15,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:31:15,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:31:15,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:31:15,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:31:15,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:31:15,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:31:15,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:31:15,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:31:15,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:31:15,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:31:15,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:31:15,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:31:15,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:31:15,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:31:15,248 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-NoLbe-MCR.epf [2019-12-28 05:31:15,275 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:31:15,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:31:15,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:31:15,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:31:15,277 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:31:15,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:31:15,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:31:15,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:31:15,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:31:15,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:31:15,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:31:15,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:31:15,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:31:15,279 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:31:15,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:31:15,279 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:31:15,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:31:15,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:31:15,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:31:15,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:31:15,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:31:15,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:31:15,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:31:15,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:31:15,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:31:15,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:31:15,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:31:15,281 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:31:15,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:31:15,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:31:15,282 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:31:15,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:31:15,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:31:15,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:31:15,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:31:15,580 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:31:15,581 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:31:15,581 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2019-12-28 05:31:15,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cb56cf0/6c8f049f212146aeb9922c3a6a6c371d/FLAGdd731562c [2019-12-28 05:31:16,126 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:31:16,127 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2019-12-28 05:31:16,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cb56cf0/6c8f049f212146aeb9922c3a6a6c371d/FLAGdd731562c [2019-12-28 05:31:16,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8cb56cf0/6c8f049f212146aeb9922c3a6a6c371d [2019-12-28 05:31:16,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:31:16,493 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:31:16,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:31:16,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:31:16,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:31:16,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:31:16" (1/1) ... [2019-12-28 05:31:16,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52190dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:16, skipping insertion in model container [2019-12-28 05:31:16,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:31:16" (1/1) ... [2019-12-28 05:31:16,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:31:16,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:31:17,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:31:17,078 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:31:17,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:31:17,221 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:31:17,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17 WrapperNode [2019-12-28 05:31:17,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:31:17,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:31:17,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:31:17,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:31:17,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:31:17,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:31:17,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:31:17,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:31:17,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (1/1) ... [2019-12-28 05:31:17,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:31:17,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:31:17,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:31:17,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:31:17,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (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 [2019-12-28 05:31:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:31:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:31:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:31:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:31:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:31:17,380 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:31:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:31:17,380 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:31:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:31:17,380 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:31:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:31:17,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:31:17,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:31:17,382 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:31:17,784 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:31:17,785 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:31:17,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:31:17 BoogieIcfgContainer [2019-12-28 05:31:17,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:31:17,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:31:17,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:31:17,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:31:17,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:31:16" (1/3) ... [2019-12-28 05:31:17,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec10d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:31:17, skipping insertion in model container [2019-12-28 05:31:17,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:31:17" (2/3) ... [2019-12-28 05:31:17,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec10d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:31:17, skipping insertion in model container [2019-12-28 05:31:17,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:31:17" (3/3) ... [2019-12-28 05:31:17,796 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2019-12-28 05:31:17,805 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:31:17,805 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:31:17,812 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:31:17,813 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:31:17,846 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,847 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,847 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,847 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,848 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,848 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,849 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,849 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,850 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,850 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,850 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,851 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,851 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,851 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,851 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,852 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,856 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,856 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,856 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,857 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,862 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,863 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,863 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,863 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,865 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,866 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,866 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,866 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:31:17,879 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:31:17,895 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:31:17,895 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:31:17,895 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:31:17,895 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:31:17,895 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:31:17,896 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:31:17,896 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:31:17,896 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:31:17,906 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 05:31:17,993 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 05:31:17,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 05:31:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:31:18,013 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:18,014 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:18,014 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:18,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:18,021 INFO L82 PathProgramCache]: Analyzing trace with hash -306675231, now seen corresponding path program 1 times [2019-12-28 05:31:18,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:18,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377786712] [2019-12-28 05:31:18,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:18,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:18,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377786712] [2019-12-28 05:31:18,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:18,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:31:18,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [503163898] [2019-12-28 05:31:18,448 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:18,458 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:18,488 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 05:31:18,489 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:18,493 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:31:18,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:31:18,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:18,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:31:18,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:31:18,507 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 05:31:18,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:18,622 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 05:31:18,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:31:18,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 05:31:18,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:18,656 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 05:31:18,657 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 05:31:18,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:31:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 05:31:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 05:31:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 05:31:18,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 05:31:18,761 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 05:31:18,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:18,762 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 05:31:18,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:31:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 05:31:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:31:18,766 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:18,766 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:18,767 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:18,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:18,767 INFO L82 PathProgramCache]: Analyzing trace with hash -233225308, now seen corresponding path program 1 times [2019-12-28 05:31:18,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:18,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83316395] [2019-12-28 05:31:18,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:18,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83316395] [2019-12-28 05:31:18,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:18,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:31:18,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [173841570] [2019-12-28 05:31:18,951 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:18,954 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:18,959 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 05:31:18,959 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:18,961 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:31:18,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:31:18,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:18,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:31:18,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:31:18,964 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 05:31:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:19,040 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 05:31:19,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:31:19,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 05:31:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:19,047 INFO L225 Difference]: With dead ends: 601 [2019-12-28 05:31:19,047 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 05:31:19,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:31:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 05:31:19,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 05:31:19,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 05:31:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 05:31:19,082 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 05:31:19,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:19,082 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 05:31:19,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:31:19,082 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 05:31:19,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:31:19,085 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:19,085 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:19,085 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:19,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:19,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1516721178, now seen corresponding path program 1 times [2019-12-28 05:31:19,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:19,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990567026] [2019-12-28 05:31:19,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:19,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990567026] [2019-12-28 05:31:19,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:19,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:31:19,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1771478582] [2019-12-28 05:31:19,206 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:19,209 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:19,214 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 05:31:19,215 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:19,215 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:31:19,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:31:19,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:19,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:31:19,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:31:19,217 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 05:31:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:19,345 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 05:31:19,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:31:19,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 05:31:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:19,350 INFO L225 Difference]: With dead ends: 403 [2019-12-28 05:31:19,350 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 05:31:19,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:31:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 05:31:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 05:31:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 05:31:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 05:31:19,373 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 05:31:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:19,373 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 05:31:19,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:31:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 05:31:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:31:19,379 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:31:19,380 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:31:19,380 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:31:19,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:31:19,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1936440022, now seen corresponding path program 1 times [2019-12-28 05:31:19,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:31:19,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214406175] [2019-12-28 05:31:19,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:31:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:31:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:31:19,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214406175] [2019-12-28 05:31:19,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:31:19,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:31:19,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [298041910] [2019-12-28 05:31:19,553 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:31:19,558 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:31:19,566 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 05:31:19,566 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:31:19,567 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:31:19,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:31:19,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:31:19,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:31:19,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:31:19,568 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-28 05:31:19,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:31:19,770 INFO L93 Difference]: Finished difference Result 304 states and 774 transitions. [2019-12-28 05:31:19,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:31:19,770 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-28 05:31:19,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:31:19,771 INFO L225 Difference]: With dead ends: 304 [2019-12-28 05:31:19,771 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:31:19,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:31:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:31:19,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:31:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:31:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:31:19,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 05:31:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:31:19,773 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:31:19,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:31:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:31:19,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:31:19,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:31:19 BasicIcfg [2019-12-28 05:31:19,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:31:19,782 INFO L168 Benchmark]: Toolchain (without parser) took 3287.73 ms. Allocated memory was 140.0 MB in the beginning and 250.1 MB in the end (delta: 110.1 MB). Free memory was 102.9 MB in the beginning and 209.7 MB in the end (delta: -106.8 MB). Peak memory consumption was 121.6 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:19,782 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 05:31:19,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.68 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 160.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:19,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 203.9 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:19,785 INFO L168 Benchmark]: Boogie Preprocessor took 26.69 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 156.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:19,786 INFO L168 Benchmark]: RCFGBuilder took 486.79 ms. Allocated memory is still 203.9 MB. Free memory was 156.6 MB in the beginning and 136.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:19,787 INFO L168 Benchmark]: TraceAbstraction took 1990.79 ms. Allocated memory was 203.9 MB in the beginning and 250.1 MB in the end (delta: 46.1 MB). Free memory was 136.4 MB in the beginning and 209.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 91.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:31:19,791 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.68 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 160.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 203.9 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.69 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 156.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 486.79 ms. Allocated memory is still 203.9 MB. Free memory was 156.6 MB in the beginning and 136.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1990.79 ms. Allocated memory was 203.9 MB in the beginning and 250.1 MB in the end (delta: 46.1 MB). Free memory was 136.4 MB in the beginning and 209.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 91.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 179 SDtfs, 253 SDslu, 391 SDs, 0 SdLazy, 63 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 11508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...