/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:37:37,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:37:37,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:37:37,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:37:37,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:37:37,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:37:37,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:37:37,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:37:37,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:37:37,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:37:37,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:37:37,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:37:37,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:37:37,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:37:37,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:37:37,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:37:37,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:37:37,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:37:37,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:37:37,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:37:37,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:37:37,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:37:37,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:37:37,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:37:37,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:37:37,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:37:37,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:37:37,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:37:37,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:37:37,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:37:37,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:37:37,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:37:37,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:37:37,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:37:37,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:37:37,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:37:37,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:37:37,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:37:37,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:37:37,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:37:37,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:37:37,350 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:37:37,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:37:37,350 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:37:37,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:37:37,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:37:37,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:37:37,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:37:37,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:37:37,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:37:37,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:37:37,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:37:37,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:37:37,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:37:37,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:37:37,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:37:37,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:37:37,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:37:37,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:37:37,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:37:37,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:37:37,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:37:37,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:37:37,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:37:37,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:37:37,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:37:37,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:37:37,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:37:37,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:37:37,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:37:37,695 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:37:37,696 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-10-05 23:37:37,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82ea177d/c8eb0aa297fc47e287416d9282474512/FLAG8efa807fd [2020-10-05 23:37:38,242 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:37:38,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-10-05 23:37:38,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82ea177d/c8eb0aa297fc47e287416d9282474512/FLAG8efa807fd [2020-10-05 23:37:38,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82ea177d/c8eb0aa297fc47e287416d9282474512 [2020-10-05 23:37:38,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:37:38,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:37:38,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:37:38,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:37:38,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:37:38,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:37:38" (1/1) ... [2020-10-05 23:37:38,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5588a755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:38, skipping insertion in model container [2020-10-05 23:37:38,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:37:38" (1/1) ... [2020-10-05 23:37:38,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:37:38,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:37:39,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:37:39,197 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:37:39,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:37:39,319 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:37:39,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39 WrapperNode [2020-10-05 23:37:39,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:37:39,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:37:39,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:37:39,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:37:39,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:37:39,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:37:39,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:37:39,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:37:39,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (1/1) ... [2020-10-05 23:37:39,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:37:39,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:37:39,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:37:39,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:37:39,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (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 [2020-10-05 23:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:37:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:37:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:37:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:37:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:37:39,465 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:37:39,833 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:37:39,834 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:37:39,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:37:39 BoogieIcfgContainer [2020-10-05 23:37:39,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:37:39,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:37:39,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:37:39,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:37:39,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:37:38" (1/3) ... [2020-10-05 23:37:39,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75166468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:37:39, skipping insertion in model container [2020-10-05 23:37:39,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:39" (2/3) ... [2020-10-05 23:37:39,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75166468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:37:39, skipping insertion in model container [2020-10-05 23:37:39,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:37:39" (3/3) ... [2020-10-05 23:37:39,845 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2020-10-05 23:37:39,855 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:37:39,856 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:37:39,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:37:39,865 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:37:39,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,891 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,895 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,895 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,895 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,896 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,911 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,915 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:39,932 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:37:39,954 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:37:39,954 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:37:39,954 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:37:39,954 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:37:39,954 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:37:39,954 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:37:39,954 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:37:39,955 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:37:39,969 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-05 23:37:39,971 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:37:40,017 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:37:40,017 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:37:40,022 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:37:40,025 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:37:40,047 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:37:40,047 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:37:40,048 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:37:40,050 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 23:37:40,051 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:37:41,524 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-10-05 23:37:41,524 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-10-05 23:37:41,528 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 23:37:41,555 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 23:37:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 23:37:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:37:41,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:41,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:41,567 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:41,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:41,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-05 23:37:41,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:41,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115825861] [2020-10-05 23:37:41,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:41,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115825861] [2020-10-05 23:37:41,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:41,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:37:41,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232533501] [2020-10-05 23:37:41,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:37:41,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:41,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:37:41,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:37:41,831 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 23:37:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:41,877 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-05 23:37:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:37:41,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:37:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:41,896 INFO L225 Difference]: With dead ends: 282 [2020-10-05 23:37:41,896 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 23:37:41,897 INFO L675 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 [2020-10-05 23:37:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 23:37:41,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 23:37:41,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 23:37:41,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-05 23:37:41,968 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-05 23:37:41,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:41,970 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-05 23:37:41,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:37:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-05 23:37:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:37:41,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:41,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:41,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:37:41,972 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:41,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:41,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-10-05 23:37:41,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:41,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048275214] [2020-10-05 23:37:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:42,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048275214] [2020-10-05 23:37:42,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:42,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:42,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228220422] [2020-10-05 23:37:42,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:37:42,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:42,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:37:42,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:37:42,074 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-05 23:37:42,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:42,110 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-05 23:37:42,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:37:42,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 23:37:42,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:42,112 INFO L225 Difference]: With dead ends: 242 [2020-10-05 23:37:42,113 INFO L226 Difference]: Without dead ends: 146 [2020-10-05 23:37:42,114 INFO L675 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 [2020-10-05 23:37:42,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-05 23:37:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-05 23:37:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-05 23:37:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-05 23:37:42,128 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-05 23:37:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:42,129 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-05 23:37:42,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:37:42,129 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-05 23:37:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:37:42,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:42,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:42,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:37:42,132 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:42,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:42,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-10-05 23:37:42,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:42,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181058431] [2020-10-05 23:37:42,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:42,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:42,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181058431] [2020-10-05 23:37:42,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:42,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:42,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744191023] [2020-10-05 23:37:42,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:37:42,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:42,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:37:42,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:37:42,239 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-05 23:37:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:42,263 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions. [2020-10-05 23:37:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:37:42,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 23:37:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:42,267 INFO L225 Difference]: With dead ends: 138 [2020-10-05 23:37:42,268 INFO L226 Difference]: Without dead ends: 138 [2020-10-05 23:37:42,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:37:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-05 23:37:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-05 23:37:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-05 23:37:42,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions. [2020-10-05 23:37:42,293 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11 [2020-10-05 23:37:42,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:42,294 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions. [2020-10-05 23:37:42,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:37:42,294 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions. [2020-10-05 23:37:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:37:42,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:42,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:42,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:37:42,299 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:42,300 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 1 times [2020-10-05 23:37:42,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:42,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248472654] [2020-10-05 23:37:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:42,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248472654] [2020-10-05 23:37:42,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:42,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:42,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151169213] [2020-10-05 23:37:42,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:37:42,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:42,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:37:42,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:37:42,406 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 4 states. [2020-10-05 23:37:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:42,425 INFO L93 Difference]: Finished difference Result 178 states and 418 transitions. [2020-10-05 23:37:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:37:42,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 23:37:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:42,427 INFO L225 Difference]: With dead ends: 178 [2020-10-05 23:37:42,427 INFO L226 Difference]: Without dead ends: 82 [2020-10-05 23:37:42,428 INFO L675 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 [2020-10-05 23:37:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-05 23:37:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-05 23:37:42,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-05 23:37:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-10-05 23:37:42,435 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 12 [2020-10-05 23:37:42,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:42,435 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-10-05 23:37:42,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:37:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-10-05 23:37:42,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:37:42,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:42,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:42,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:37:42,438 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:42,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:42,438 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-10-05 23:37:42,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:42,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014633627] [2020-10-05 23:37:42,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:42,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014633627] [2020-10-05 23:37:42,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:42,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:42,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305925831] [2020-10-05 23:37:42,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:37:42,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:42,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:37:42,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:37:42,487 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 4 states. [2020-10-05 23:37:42,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:42,504 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-10-05 23:37:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:37:42,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-05 23:37:42,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:42,505 INFO L225 Difference]: With dead ends: 74 [2020-10-05 23:37:42,505 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:37:42,506 INFO L675 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 [2020-10-05 23:37:42,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:37:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:37:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:37:42,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:37:42,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-05 23:37:42,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:42,507 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:37:42,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:37:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:37:42,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:37:42,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:37:42,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:37:42 BasicIcfg [2020-10-05 23:37:42,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:37:42,515 INFO L168 Benchmark]: Toolchain (without parser) took 3910.51 ms. Allocated memory was 140.5 MB in the beginning and 245.4 MB in the end (delta: 104.9 MB). Free memory was 102.7 MB in the beginning and 110.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 97.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:42,516 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 23:37:42,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.63 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 160.0 MB in the end (delta: -57.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:42,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.99 ms. Allocated memory is still 202.9 MB. Free memory was 160.0 MB in the beginning and 157.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:42,519 INFO L168 Benchmark]: Boogie Preprocessor took 24.08 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:42,520 INFO L168 Benchmark]: RCFGBuilder took 438.48 ms. Allocated memory is still 202.9 MB. Free memory was 155.9 MB in the beginning and 133.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:42,521 INFO L168 Benchmark]: TraceAbstraction took 2675.01 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 133.2 MB in the beginning and 110.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:42,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.63 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 160.0 MB in the end (delta: -57.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.99 ms. Allocated memory is still 202.9 MB. Free memory was 160.0 MB in the beginning and 157.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.08 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.48 ms. Allocated memory is still 202.9 MB. Free memory was 155.9 MB in the beginning and 133.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2675.01 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 133.2 MB in the beginning and 110.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 653 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 84 SDtfs, 73 SDslu, 67 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1369 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...