/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:17:08,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:17:08,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:17:08,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:17:08,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:17:08,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:17:08,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:17:08,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:17:08,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:17:08,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:17:08,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:17:08,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:17:08,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:17:08,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:17:08,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:17:08,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:17:08,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:17:08,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:17:08,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:17:08,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:17:08,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:17:08,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:17:08,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:17:08,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:17:08,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:17:08,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:17:08,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:17:08,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:17:08,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:17:08,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:17:08,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:17:08,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:17:08,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:17:08,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:17:08,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:17:08,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:17:08,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-27 00:17:08,402 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:17:08,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:17:08,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:17:08,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:17:08,405 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:17:08,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:17:08,406 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:17:08,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:17:08,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:17:08,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:17:08,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:17:08,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:17:08,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:17:08,408 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:17:08,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:17:08,409 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:17:08,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:17:08,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:17:08,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:17:08,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:17:08,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:17:08,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:17:08,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:17:08,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:17:08,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:17:08,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:17:08,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:17:08,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:17:08,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:17:08,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:17:08,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:17:08,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:17:08,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:17:08,698 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:17:08,698 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:17:08,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2019-12-27 00:17:08,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5863b65/660a1490b4434d6580602f49517f8cb0/FLAG05aa3c754 [2019-12-27 00:17:09,312 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:17:09,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2019-12-27 00:17:09,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5863b65/660a1490b4434d6580602f49517f8cb0/FLAG05aa3c754 [2019-12-27 00:17:09,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5863b65/660a1490b4434d6580602f49517f8cb0 [2019-12-27 00:17:09,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:17:09,579 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:17:09,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:17:09,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:17:09,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:17:09,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:17:09" (1/1) ... [2019-12-27 00:17:09,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e24b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:09, skipping insertion in model container [2019-12-27 00:17:09,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:17:09" (1/1) ... [2019-12-27 00:17:09,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:17:09,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:17:10,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:17:10,192 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:17:10,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:17:10,351 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:17:10,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10 WrapperNode [2019-12-27 00:17:10,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:17:10,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:17:10,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:17:10,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:17:10,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:17:10,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:17:10,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:17:10,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:17:10,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... [2019-12-27 00:17:10,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:17:10,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:17:10,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:17:10,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:17:10,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:17:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:17:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 00:17:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:17:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:17:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 00:17:10,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 00:17:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 00:17:10,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 00:17:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 00:17:10,490 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 00:17:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 00:17:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:17:10,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:17:10,492 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:17:10,823 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:17:10,824 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 00:17:10,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:17:10 BoogieIcfgContainer [2019-12-27 00:17:10,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:17:10,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:17:10,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:17:10,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:17:10,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:17:09" (1/3) ... [2019-12-27 00:17:10,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39701665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:17:10, skipping insertion in model container [2019-12-27 00:17:10,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:17:10" (2/3) ... [2019-12-27 00:17:10,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39701665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:17:10, skipping insertion in model container [2019-12-27 00:17:10,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:17:10" (3/3) ... [2019-12-27 00:17:10,834 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2019-12-27 00:17:10,842 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:17:10,842 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:17:10,849 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:17:10,850 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:17:10,878 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,879 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,879 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,879 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,880 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,880 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,881 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,881 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,881 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,881 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,882 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,882 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,882 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,883 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,883 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,883 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,884 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,884 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,888 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,888 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,889 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,889 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,902 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,903 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,904 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,904 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,907 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,907 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,907 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,908 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:17:10,924 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:17:10,940 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:17:10,941 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:17:10,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:17:10,941 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:17:10,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:17:10,941 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:17:10,941 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:17:10,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:17:10,953 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 00:17:10,955 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:17:11,007 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:17:11,007 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:17:11,013 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:17:11,016 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:17:11,035 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:17:11,036 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:17:11,037 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:17:11,039 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 00:17:11,040 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:17:12,413 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 00:17:12,592 INFO L206 etLargeBlockEncoding]: Checked pairs total: 452 [2019-12-27 00:17:12,592 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 00:17:12,596 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 00:17:12,607 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 00:17:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 00:17:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:17:12,616 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:17:12,617 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:17:12,617 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:17:12,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:17:12,624 INFO L82 PathProgramCache]: Analyzing trace with hash -225004372, now seen corresponding path program 1 times [2019-12-27 00:17:12,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:17:12,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701511824] [2019-12-27 00:17:12,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:17:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:17:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:17:12,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701511824] [2019-12-27 00:17:12,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:17:12,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:17:12,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944674852] [2019-12-27 00:17:12,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:17:12,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:17:12,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:17:12,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:17:12,887 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 00:17:12,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:17:12,918 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 00:17:12,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:17:12,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 00:17:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:17:12,932 INFO L225 Difference]: With dead ends: 44 [2019-12-27 00:17:12,933 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 00:17:12,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:17:12,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 00:17:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 00:17:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 00:17:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 00:17:12,983 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 00:17:12,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:17:12,984 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 00:17:12,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:17:12,985 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 00:17:12,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:17:12,985 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:17:12,986 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:17:12,986 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:17:12,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:17:12,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1614798822, now seen corresponding path program 1 times [2019-12-27 00:17:12,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:17:12,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801561112] [2019-12-27 00:17:12,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:17:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:17:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:17:13,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801561112] [2019-12-27 00:17:13,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:17:13,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:17:13,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936874823] [2019-12-27 00:17:13,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:17:13,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:17:13,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:17:13,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:17:13,062 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 00:17:13,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:17:13,081 INFO L93 Difference]: Finished difference Result 40 states and 69 transitions. [2019-12-27 00:17:13,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:17:13,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 00:17:13,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:17:13,083 INFO L225 Difference]: With dead ends: 40 [2019-12-27 00:17:13,083 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 00:17:13,084 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 [2019-12-27 00:17:13,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 00:17:13,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 00:17:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 00:17:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 60 transitions. [2019-12-27 00:17:13,096 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 60 transitions. Word has length 9 [2019-12-27 00:17:13,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:17:13,098 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 60 transitions. [2019-12-27 00:17:13,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:17:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2019-12-27 00:17:13,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:17:13,100 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:17:13,100 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:17:13,101 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:17:13,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:17:13,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1614798543, now seen corresponding path program 1 times [2019-12-27 00:17:13,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:17:13,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276830126] [2019-12-27 00:17:13,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:17:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:17:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:17:13,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276830126] [2019-12-27 00:17:13,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:17:13,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:17:13,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950144069] [2019-12-27 00:17:13,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:17:13,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:17:13,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:17:13,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:17:13,318 INFO L87 Difference]: Start difference. First operand 34 states and 60 transitions. Second operand 5 states. [2019-12-27 00:17:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:17:13,365 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2019-12-27 00:17:13,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:17:13,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-27 00:17:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:17:13,366 INFO L225 Difference]: With dead ends: 37 [2019-12-27 00:17:13,367 INFO L226 Difference]: Without dead ends: 29 [2019-12-27 00:17:13,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:17:13,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-27 00:17:13,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-27 00:17:13,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-27 00:17:13,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 45 transitions. [2019-12-27 00:17:13,372 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 45 transitions. Word has length 9 [2019-12-27 00:17:13,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:17:13,372 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 45 transitions. [2019-12-27 00:17:13,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:17:13,372 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2019-12-27 00:17:13,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:17:13,373 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:17:13,373 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:17:13,373 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:17:13,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:17:13,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1506653978, now seen corresponding path program 1 times [2019-12-27 00:17:13,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:17:13,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114298555] [2019-12-27 00:17:13,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:17:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:17:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:17:13,438 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114298555] [2019-12-27 00:17:13,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:17:13,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:17:13,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577409909] [2019-12-27 00:17:13,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:17:13,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:17:13,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:17:13,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:17:13,442 INFO L87 Difference]: Start difference. First operand 29 states and 45 transitions. Second operand 4 states. [2019-12-27 00:17:13,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:17:13,461 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2019-12-27 00:17:13,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:17:13,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 00:17:13,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:17:13,463 INFO L225 Difference]: With dead ends: 35 [2019-12-27 00:17:13,463 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 00:17:13,463 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 [2019-12-27 00:17:13,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 00:17:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 00:17:13,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 00:17:13,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2019-12-27 00:17:13,468 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 10 [2019-12-27 00:17:13,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:17:13,468 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2019-12-27 00:17:13,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:17:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2019-12-27 00:17:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:17:13,469 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:17:13,469 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:17:13,469 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:17:13,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:17:13,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1478918557, now seen corresponding path program 1 times [2019-12-27 00:17:13,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:17:13,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543007387] [2019-12-27 00:17:13,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:17:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:17:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:17:13,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543007387] [2019-12-27 00:17:13,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:17:13,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:17:13,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116093407] [2019-12-27 00:17:13,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:17:13,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:17:13,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:17:13,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:17:13,545 INFO L87 Difference]: Start difference. First operand 24 states and 32 transitions. Second operand 6 states. [2019-12-27 00:17:13,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:17:13,624 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-12-27 00:17:13,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:17:13,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 00:17:13,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:17:13,625 INFO L225 Difference]: With dead ends: 23 [2019-12-27 00:17:13,626 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 00:17:13,626 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 [2019-12-27 00:17:13,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 00:17:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 00:17:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 00:17:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 00:17:13,632 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2019-12-27 00:17:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:17:13,632 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 00:17:13,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:17:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 00:17:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:17:13,633 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:17:13,633 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:17:13,633 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:17:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:17:13,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1398224240, now seen corresponding path program 1 times [2019-12-27 00:17:13,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:17:13,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531364368] [2019-12-27 00:17:13,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:17:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:17:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:17:13,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531364368] [2019-12-27 00:17:13,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:17:13,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:17:13,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864050076] [2019-12-27 00:17:13,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:17:13,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:17:13,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:17:13,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:17:13,690 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 00:17:13,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:17:13,708 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 00:17:13,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:17:13,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:17:13,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:17:13,709 INFO L225 Difference]: With dead ends: 11 [2019-12-27 00:17:13,709 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:17:13,709 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 [2019-12-27 00:17:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:17:13,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:17:13,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:17:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:17:13,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 00:17:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:17:13,710 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:17:13,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:17:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:17:13,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:17:13,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:17:13 BasicIcfg [2019-12-27 00:17:13,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:17:13,716 INFO L168 Benchmark]: Toolchain (without parser) took 4137.71 ms. Allocated memory was 136.3 MB in the beginning and 250.6 MB in the end (delta: 114.3 MB). Free memory was 100.2 MB in the beginning and 135.4 MB in the end (delta: -35.3 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:17:13,717 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 00:17:13,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.16 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 157.4 MB in the end (delta: -57.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-12-27 00:17:13,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 00:17:13,720 INFO L168 Benchmark]: Boogie Preprocessor took 24.38 ms. Allocated memory is still 200.3 MB. Free memory was 155.3 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:17:13,721 INFO L168 Benchmark]: RCFGBuilder took 397.78 ms. Allocated memory is still 200.3 MB. Free memory was 154.0 MB in the beginning and 133.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 00:17:13,721 INFO L168 Benchmark]: TraceAbstraction took 2887.90 ms. Allocated memory was 200.3 MB in the beginning and 250.6 MB in the end (delta: 50.3 MB). Free memory was 132.6 MB in the beginning and 135.4 MB in the end (delta: -2.8 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:17:13,728 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.16 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 157.4 MB in the end (delta: -57.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 200.3 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.38 ms. Allocated memory is still 200.3 MB. Free memory was 155.3 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.78 ms. Allocated memory is still 200.3 MB. Free memory was 154.0 MB in the beginning and 133.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2887.90 ms. Allocated memory was 200.3 MB in the beginning and 250.6 MB in the end (delta: 50.3 MB). Free memory was 132.6 MB in the beginning and 135.4 MB in the end (delta: -2.8 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 11 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 452 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 47 SDslu, 63 SDs, 0 SdLazy, 49 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1189 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...