/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/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 15:15:32,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:15:32,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:15:32,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:15:32,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:15:32,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:15:32,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:15:32,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:15:32,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:15:32,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:15:32,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:15:32,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:15:32,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:15:32,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:15:32,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:15:32,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:15:32,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:15:32,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:15:32,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:15:32,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:15:32,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:15:32,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:15:32,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:15:32,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:15:32,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:15:32,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:15:32,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:15:32,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:15:32,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:15:32,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:15:32,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:15:32,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:15:32,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:15:32,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:15:32,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:15:32,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:15:32,387 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 [2019-12-18 15:15:32,408 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:15:32,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:15:32,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:15:32,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:15:32,409 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:15:32,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:15:32,410 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:15:32,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:15:32,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:15:32,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:15:32,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:15:32,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:15:32,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:15:32,411 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:15:32,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:15:32,412 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:15:32,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:15:32,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:15:32,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:15:32,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:15:32,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:15:32,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:15:32,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:15:32,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:15:32,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:15:32,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:15:32,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:15:32,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:15:32,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 15:15:32,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:15:32,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:15:32,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:15:32,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:15:32,737 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:15:32,738 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:15:32,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2019-12-18 15:15:32,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1341a79e4/34d2cd7ccd85424f89a9181d9c617500/FLAG93a7446a7 [2019-12-18 15:15:33,381 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:15:33,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2019-12-18 15:15:33,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1341a79e4/34d2cd7ccd85424f89a9181d9c617500/FLAG93a7446a7 [2019-12-18 15:15:33,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1341a79e4/34d2cd7ccd85424f89a9181d9c617500 [2019-12-18 15:15:33,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:15:33,677 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:15:33,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:15:33,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:15:33,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:15:33,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:15:33" (1/1) ... [2019-12-18 15:15:33,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195cbd31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:33, skipping insertion in model container [2019-12-18 15:15:33,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:15:33" (1/1) ... [2019-12-18 15:15:33,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:15:33,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:15:34,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:15:34,301 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:15:34,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:15:34,445 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:15:34,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34 WrapperNode [2019-12-18 15:15:34,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:15:34,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:15:34,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:15:34,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:15:34,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:15:34,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:15:34,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:15:34,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:15:34,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... [2019-12-18 15:15:34,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:15:34,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:15:34,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:15:34,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:15:34,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:15:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:15:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 15:15:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:15:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:15:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 15:15:34,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 15:15:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 15:15:34,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 15:15:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 15:15:34,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 15:15:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 15:15:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:15:34,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:15:34,602 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:15:34,944 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:15:34,945 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 15:15:34,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:15:34 BoogieIcfgContainer [2019-12-18 15:15:34,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:15:34,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:15:34,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:15:34,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:15:34,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:15:33" (1/3) ... [2019-12-18 15:15:34,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780e9a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:15:34, skipping insertion in model container [2019-12-18 15:15:34,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:15:34" (2/3) ... [2019-12-18 15:15:34,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780e9a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:15:34, skipping insertion in model container [2019-12-18 15:15:34,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:15:34" (3/3) ... [2019-12-18 15:15:34,954 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2019-12-18 15:15:34,963 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:15:34,963 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:15:34,970 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:15:34,971 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:15:35,007 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,007 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,007 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,008 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,008 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,009 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,009 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,009 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,010 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,010 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,010 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,010 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,011 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,011 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,011 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,012 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,012 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,012 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,016 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,017 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,017 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,017 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,023 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,023 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,023 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,024 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,026 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,027 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,027 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,027 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:15:35,052 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 15:15:35,068 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:15:35,068 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:15:35,068 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:15:35,068 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:15:35,068 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:15:35,068 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:15:35,069 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:15:35,069 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:15:35,084 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-18 15:15:35,086 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 15:15:35,150 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 15:15:35,150 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:15:35,163 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 15:15:35,166 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 15:15:35,187 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 15:15:35,187 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:15:35,188 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 15:15:35,189 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 15:15:35,190 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:15:36,629 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-18 15:15:36,757 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-18 15:15:36,757 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 15:15:36,760 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 15:15:36,768 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 15:15:36,770 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 15:15:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:15:36,776 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:15:36,776 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:15:36,776 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:15:36,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:15:36,783 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-18 15:15:36,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:15:36,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428764020] [2019-12-18 15:15:36,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:15:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:15:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:15:37,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428764020] [2019-12-18 15:15:37,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:15:37,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:15:37,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891624932] [2019-12-18 15:15:37,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:15:37,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:15:37,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:15:37,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:15:37,045 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 15:15:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:15:37,083 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 15:15:37,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:15:37,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 15:15:37,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:15:37,112 INFO L225 Difference]: With dead ends: 42 [2019-12-18 15:15:37,112 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 15:15:37,115 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:15:37,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 15:15:37,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 15:15:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 15:15:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 15:15:37,168 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 15:15:37,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:15:37,169 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 15:15:37,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:15:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 15:15:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 15:15:37,171 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:15:37,171 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:15:37,172 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:15:37,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:15:37,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1826755775, now seen corresponding path program 1 times [2019-12-18 15:15:37,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:15:37,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611520993] [2019-12-18 15:15:37,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:15:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:15:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:15:37,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611520993] [2019-12-18 15:15:37,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:15:37,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:15:37,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208786945] [2019-12-18 15:15:37,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:15:37,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:15:37,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:15:37,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:15:37,299 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 15:15:37,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:15:37,325 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 15:15:37,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:15:37,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 15:15:37,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:15:37,326 INFO L225 Difference]: With dead ends: 36 [2019-12-18 15:15:37,326 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 15:15:37,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:15:37,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 15:15:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 15:15:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 15:15:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 15:15:37,332 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 15:15:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:15:37,332 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 15:15:37,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:15:37,333 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 15:15:37,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 15:15:37,333 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:15:37,334 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:15:37,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:15:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:15:37,334 INFO L82 PathProgramCache]: Analyzing trace with hash -794534279, now seen corresponding path program 1 times [2019-12-18 15:15:37,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:15:37,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96376977] [2019-12-18 15:15:37,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:15:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:15:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:15:37,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96376977] [2019-12-18 15:15:37,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:15:37,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 15:15:37,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142938727] [2019-12-18 15:15:37,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:15:37,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:15:37,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:15:37,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:15:37,387 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-18 15:15:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:15:37,392 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-18 15:15:37,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:15:37,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 15:15:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:15:37,394 INFO L225 Difference]: With dead ends: 27 [2019-12-18 15:15:37,394 INFO L226 Difference]: Without dead ends: 27 [2019-12-18 15:15:37,394 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:15:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-18 15:15:37,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-18 15:15:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-18 15:15:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-18 15:15:37,399 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-18 15:15:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:15:37,399 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-18 15:15:37,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:15:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-18 15:15:37,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:15:37,400 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:15:37,400 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:15:37,400 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:15:37,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:15:37,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1700901458, now seen corresponding path program 1 times [2019-12-18 15:15:37,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:15:37,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249167013] [2019-12-18 15:15:37,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:15:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:15:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:15:37,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249167013] [2019-12-18 15:15:37,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:15:37,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:15:37,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951303510] [2019-12-18 15:15:37,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:15:37,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:15:37,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:15:37,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:15:37,478 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-18 15:15:37,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:15:37,505 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-18 15:15:37,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:15:37,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:15:37,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:15:37,507 INFO L225 Difference]: With dead ends: 29 [2019-12-18 15:15:37,507 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 15:15:37,508 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:15:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 15:15:37,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 15:15:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 15:15:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 15:15:37,510 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-18 15:15:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:15:37,511 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 15:15:37,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:15:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 15:15:37,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 15:15:37,512 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:15:37,512 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:15:37,512 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 15:15:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:15:37,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-18 15:15:37,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:15:37,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970115426] [2019-12-18 15:15:37,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:15:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:15:37,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:15:37,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970115426] [2019-12-18 15:15:37,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:15:37,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 15:15:37,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60615784] [2019-12-18 15:15:37,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:15:37,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:15:37,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:15:37,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:15:37,552 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 15:15:37,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:15:37,565 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 15:15:37,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:15:37,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 15:15:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:15:37,566 INFO L225 Difference]: With dead ends: 16 [2019-12-18 15:15:37,567 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 15:15:37,567 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:15:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 15:15:37,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 15:15:37,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 15:15:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 15:15:37,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 15:15:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:15:37,568 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 15:15:37,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:15:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 15:15:37,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 15:15:37,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:15:37 BasicIcfg [2019-12-18 15:15:37,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:15:37,575 INFO L168 Benchmark]: Toolchain (without parser) took 3898.67 ms. Allocated memory was 145.8 MB in the beginning and 248.0 MB in the end (delta: 102.2 MB). Free memory was 100.9 MB in the beginning and 141.5 MB in the end (delta: -40.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. [2019-12-18 15:15:37,576 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 15:15:37,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.31 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 160.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 15:15:37,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 15:15:37,578 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:15:37,579 INFO L168 Benchmark]: RCFGBuilder took 419.52 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 136.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-18 15:15:37,580 INFO L168 Benchmark]: TraceAbstraction took 2625.81 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 136.0 MB in the beginning and 141.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2019-12-18 15:15:37,584 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.31 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 160.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.52 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 136.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2625.81 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 136.0 MB in the beginning and 141.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...