/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:14:03,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:14:03,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:14:03,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:14:03,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:14:03,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:14:03,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:14:03,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:14:03,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:14:03,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:14:03,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:14:03,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:14:03,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:14:03,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:14:03,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:14:03,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:14:03,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:14:03,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:14:03,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:14:03,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:14:03,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:14:03,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:14:03,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:14:03,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:14:03,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:14:03,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:14:03,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:14:03,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:14:03,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:14:03,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:14:03,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:14:03,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:14:03,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:14:03,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:14:03,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:14:03,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:14:03,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:14:03,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:14:03,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:14:03,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:14:03,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:14:03,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:14:03,399 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:14:03,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:14:03,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:14:03,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:14:03,400 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:14:03,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:14:03,401 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:14:03,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:14:03,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:14:03,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:14:03,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:14:03,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:14:03,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:14:03,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:14:03,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:14:03,402 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:14:03,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:14:03,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:14:03,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:14:03,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:14:03,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:14:03,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:14:03,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:14:03,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:14:03,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:14:03,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:14:03,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:14:03,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:14:03,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:14:03,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:14:03,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:14:03,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:14:03,708 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:14:03,708 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:14:03,709 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2020-10-15 22:14:03,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70ebb90e/44a04f8016ed455e82749e2aa06976ea/FLAGe6a9fa983 [2020-10-15 22:14:04,329 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:14:04,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2020-10-15 22:14:04,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70ebb90e/44a04f8016ed455e82749e2aa06976ea/FLAGe6a9fa983 [2020-10-15 22:14:04,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70ebb90e/44a04f8016ed455e82749e2aa06976ea [2020-10-15 22:14:04,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:14:04,592 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:14:04,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:14:04,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:14:04,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:14:04,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:14:04" (1/1) ... [2020-10-15 22:14:04,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd10c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:04, skipping insertion in model container [2020-10-15 22:14:04,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:14:04" (1/1) ... [2020-10-15 22:14:04,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:14:04,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:14:05,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:14:05,089 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:14:05,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:14:05,214 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:14:05,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05 WrapperNode [2020-10-15 22:14:05,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:14:05,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:14:05,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:14:05,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:14:05,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:14:05,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:14:05,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:14:05,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:14:05,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (1/1) ... [2020-10-15 22:14:05,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:14:05,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:14:05,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:14:05,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:14:05,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (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 [2020-10-15 22:14:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:14:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:14:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:14:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:14:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:14:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:14:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:14:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:14:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:14:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:14:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:14:05,360 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:14:05,735 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:14:05,736 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:14:05,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:14:05 BoogieIcfgContainer [2020-10-15 22:14:05,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:14:05,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:14:05,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:14:05,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:14:05,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:14:04" (1/3) ... [2020-10-15 22:14:05,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e6accf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:14:05, skipping insertion in model container [2020-10-15 22:14:05,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:14:05" (2/3) ... [2020-10-15 22:14:05,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e6accf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:14:05, skipping insertion in model container [2020-10-15 22:14:05,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:14:05" (3/3) ... [2020-10-15 22:14:05,747 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2020-10-15 22:14:05,759 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:14:05,759 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:14:05,767 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:14:05,768 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:14:05,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,795 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,800 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,800 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,807 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,807 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:14:05,820 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 22:14:05,839 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:14:05,839 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:14:05,839 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:14:05,840 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:14:05,840 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:14:05,840 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:14:05,840 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:14:05,840 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:14:05,852 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:14:05,854 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-15 22:14:05,857 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-15 22:14:05,859 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-15 22:14:05,900 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-15 22:14:05,901 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:14:05,905 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-15 22:14:05,908 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-15 22:14:07,216 INFO L132 LiptonReduction]: Checked pairs total: 1197 [2020-10-15 22:14:07,216 INFO L134 LiptonReduction]: Total number of compositions: 50 [2020-10-15 22:14:07,223 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-15 22:14:07,236 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-15 22:14:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-15 22:14:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 22:14:07,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:14:07,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 22:14:07,246 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:14:07,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:14:07,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-10-15 22:14:07,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:14:07,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825415514] [2020-10-15 22:14:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:14:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:14:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:14:07,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825415514] [2020-10-15 22:14:07,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:14:07,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:14:07,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419143894] [2020-10-15 22:14:07,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:14:07,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:14:07,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:14:07,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:14:07,488 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-15 22:14:07,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:14:07,523 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-10-15 22:14:07,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:14:07,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-15 22:14:07,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:14:07,537 INFO L225 Difference]: With dead ends: 70 [2020-10-15 22:14:07,537 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 22:14:07,539 INFO L677 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 [2020-10-15 22:14:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 22:14:07,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-15 22:14:07,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 22:14:07,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-10-15 22:14:07,582 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-10-15 22:14:07,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:14:07,583 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-10-15 22:14:07,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:14:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-10-15 22:14:07,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:14:07,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:14:07,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:14:07,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:14:07,585 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:14:07,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:14:07,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-10-15 22:14:07,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:14:07,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856988721] [2020-10-15 22:14:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:14:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:14:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:14:07,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856988721] [2020-10-15 22:14:07,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:14:07,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:14:07,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484089194] [2020-10-15 22:14:07,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:14:07,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:14:07,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:14:07,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:14:07,656 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-10-15 22:14:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:14:07,682 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-15 22:14:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:14:07,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 22:14:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:14:07,684 INFO L225 Difference]: With dead ends: 60 [2020-10-15 22:14:07,684 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 22:14:07,685 INFO L677 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 [2020-10-15 22:14:07,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 22:14:07,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 22:14:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 22:14:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-15 22:14:07,691 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-10-15 22:14:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:14:07,692 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-15 22:14:07,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:14:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-15 22:14:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:14:07,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:14:07,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:14:07,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:14:07,694 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:14:07,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:14:07,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-10-15 22:14:07,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:14:07,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429612713] [2020-10-15 22:14:07,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:14:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:14:07,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:14:07,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429612713] [2020-10-15 22:14:07,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:14:07,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:14:07,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128776631] [2020-10-15 22:14:07,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:14:07,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:14:07,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:14:07,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:14:07,808 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-10-15 22:14:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:14:07,844 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-15 22:14:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:14:07,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 22:14:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:14:07,846 INFO L225 Difference]: With dead ends: 39 [2020-10-15 22:14:07,846 INFO L226 Difference]: Without dead ends: 29 [2020-10-15 22:14:07,847 INFO L677 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 [2020-10-15 22:14:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-15 22:14:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-15 22:14:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-15 22:14:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-15 22:14:07,852 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-10-15 22:14:07,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:14:07,853 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-15 22:14:07,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:14:07,853 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-15 22:14:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:14:07,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:14:07,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:14:07,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:14:07,854 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:14:07,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:14:07,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1964607327, now seen corresponding path program 1 times [2020-10-15 22:14:07,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:14:07,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017564492] [2020-10-15 22:14:07,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:14:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:14:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:14:07,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017564492] [2020-10-15 22:14:07,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:14:07,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:14:07,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418485047] [2020-10-15 22:14:07,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:14:07,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:14:07,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:14:07,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:14:07,925 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-10-15 22:14:07,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:14:07,962 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-10-15 22:14:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:14:07,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:14:07,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:14:07,963 INFO L225 Difference]: With dead ends: 27 [2020-10-15 22:14:07,963 INFO L226 Difference]: Without dead ends: 22 [2020-10-15 22:14:07,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:14:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-15 22:14:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-15 22:14:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-15 22:14:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-15 22:14:07,968 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-10-15 22:14:07,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:14:07,968 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-15 22:14:07,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:14:07,968 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-15 22:14:07,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:14:07,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:14:07,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:14:07,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:14:07,970 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:14:07,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:14:07,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1799382783, now seen corresponding path program 1 times [2020-10-15 22:14:07,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:14:07,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356829099] [2020-10-15 22:14:07,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:14:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:14:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:14:08,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356829099] [2020-10-15 22:14:08,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:14:08,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:14:08,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507069335] [2020-10-15 22:14:08,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:14:08,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:14:08,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:14:08,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:14:08,013 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-10-15 22:14:08,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:14:08,025 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-15 22:14:08,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:14:08,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:14:08,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:14:08,026 INFO L225 Difference]: With dead ends: 21 [2020-10-15 22:14:08,026 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:14:08,027 INFO L677 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 [2020-10-15 22:14:08,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:14:08,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:14:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:14:08,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:14:08,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-15 22:14:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:14:08,028 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:14:08,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:14:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:14:08,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:14:08,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:14:08,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:14:08 BasicIcfg [2020-10-15 22:14:08,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:14:08,036 INFO L168 Benchmark]: Toolchain (without parser) took 3443.73 ms. Allocated memory was 251.1 MB in the beginning and 357.6 MB in the end (delta: 106.4 MB). Free memory was 206.3 MB in the beginning and 163.0 MB in the end (delta: 43.3 MB). Peak memory consumption was 149.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:14:08,037 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:14:08,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.02 ms. Allocated memory was 251.1 MB in the beginning and 314.0 MB in the end (delta: 62.9 MB). Free memory was 206.3 MB in the beginning and 270.1 MB in the end (delta: -63.8 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:14:08,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.77 ms. Allocated memory is still 314.0 MB. Free memory was 270.1 MB in the beginning and 266.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.2 GB. [2020-10-15 22:14:08,040 INFO L168 Benchmark]: Boogie Preprocessor took 26.57 ms. Allocated memory is still 314.0 MB. Free memory was 266.9 MB in the beginning and 264.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:14:08,041 INFO L168 Benchmark]: RCFGBuilder took 447.75 ms. Allocated memory is still 314.0 MB. Free memory was 264.3 MB in the beginning and 245.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-15 22:14:08,041 INFO L168 Benchmark]: TraceAbstraction took 2294.20 ms. Allocated memory was 314.0 MB in the beginning and 357.6 MB in the end (delta: 43.5 MB). Free memory was 245.1 MB in the beginning and 163.0 MB in the end (delta: 82.1 MB). Peak memory consumption was 125.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:14:08,046 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 622.02 ms. Allocated memory was 251.1 MB in the beginning and 314.0 MB in the end (delta: 62.9 MB). Free memory was 206.3 MB in the beginning and 270.1 MB in the end (delta: -63.8 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.77 ms. Allocated memory is still 314.0 MB. Free memory was 270.1 MB in the beginning and 266.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.57 ms. Allocated memory is still 314.0 MB. Free memory was 266.9 MB in the beginning and 264.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 447.75 ms. Allocated memory is still 314.0 MB. Free memory was 264.3 MB in the beginning and 245.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2294.20 ms. Allocated memory was 314.0 MB in the beginning and 357.6 MB in the end (delta: 43.5 MB). Free memory was 245.1 MB in the beginning and 163.0 MB in the end (delta: 82.1 MB). Peak memory consumption was 125.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 468 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 30 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 50 TotalNumberOfCompositions, 1197 MoverChecksTotal - PositiveResult [Line: 7]: 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 60 SDtfs, 48 SDslu, 60 SDs, 0 SdLazy, 45 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 1057 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...