/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:35:55,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:35:55,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:35:55,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:35:55,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:35:55,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:35:55,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:35:55,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:35:55,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:35:55,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:35:55,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:35:55,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:35:55,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:35:55,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:35:55,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:35:55,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:35:55,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:35:55,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:35:55,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:35:55,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:35:55,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:35:55,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:35:55,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:35:55,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:35:55,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:35:55,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:35:55,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:35:55,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:35:55,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:35:55,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:35:55,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:35:55,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:35:55,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:35:55,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:35:55,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:35:55,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:35:55,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:35:55,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:35:55,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:35:55,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:35:55,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:35:55,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:35:55,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:35:55,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:35:55,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:35:55,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:35:55,408 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:35:55,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:35:55,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:35:55,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:35:55,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:35:55,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:35:55,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:35:55,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:35:55,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:35:55,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:35:55,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:35:55,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:35:55,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:35:55,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:35:55,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:35:55,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:35:55,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:35:55,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:35:55,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:35:55,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:35:55,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:35:55,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:35:55,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:35:55,413 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:35:55,413 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:35:55,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:35:55,413 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:35:55,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:35:55,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:35:55,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:35:55,715 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:35:55,715 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:35:55,716 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-16 13:35:55,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bab84641/f008f13ead7c4127846a57ac055dc57e/FLAG77e8edd8d [2020-10-16 13:35:56,239 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:35:56,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-16 13:35:56,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bab84641/f008f13ead7c4127846a57ac055dc57e/FLAG77e8edd8d [2020-10-16 13:35:56,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bab84641/f008f13ead7c4127846a57ac055dc57e [2020-10-16 13:35:56,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:35:56,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:35:56,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:35:56,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:35:56,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:35:56,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:35:56" (1/1) ... [2020-10-16 13:35:56,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e363c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:56, skipping insertion in model container [2020-10-16 13:35:56,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:35:56" (1/1) ... [2020-10-16 13:35:56,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:35:56,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:35:57,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:35:57,188 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:35:57,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:35:57,351 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:35:57,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57 WrapperNode [2020-10-16 13:35:57,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:35:57,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:35:57,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:35:57,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:35:57,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:35:57,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:35:57,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:35:57,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:35:57,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... [2020-10-16 13:35:57,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:35:57,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:35:57,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:35:57,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:35:57,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:35:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:35:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:35:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:35:57,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:35:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:35:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:35:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:35:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:35:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:35:57,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:35:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:35:57,498 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:35:57,796 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:35:57,797 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:35:57,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:35:57 BoogieIcfgContainer [2020-10-16 13:35:57,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:35:57,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:35:57,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:35:57,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:35:57,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:35:56" (1/3) ... [2020-10-16 13:35:57,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7500ee5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:35:57, skipping insertion in model container [2020-10-16 13:35:57,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:57" (2/3) ... [2020-10-16 13:35:57,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7500ee5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:35:57, skipping insertion in model container [2020-10-16 13:35:57,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:35:57" (3/3) ... [2020-10-16 13:35:57,819 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc.i [2020-10-16 13:35:57,837 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:35:57,838 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:35:57,846 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:35:57,847 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:35:57,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,884 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,884 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,890 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,890 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:57,893 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:35:57,907 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 13:35:57,928 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:35:57,928 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:35:57,928 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:35:57,929 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:35:57,929 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:35:57,929 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:35:57,929 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:35:57,929 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:35:57,942 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:35:57,943 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-16 13:35:57,946 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-16 13:35:57,948 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-16 13:35:57,988 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-16 13:35:57,988 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:35:57,992 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. [2020-10-16 13:35:57,994 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 13:35:59,081 INFO L132 LiptonReduction]: Checked pairs total: 1197 [2020-10-16 13:35:59,082 INFO L134 LiptonReduction]: Total number of compositions: 50 [2020-10-16 13:35:59,089 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-16 13:35:59,103 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 13:35:59,106 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 13:35:59,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 13:35:59,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:59,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 13:35:59,114 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:59,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:59,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-10-16 13:35:59,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:59,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256970509] [2020-10-16 13:35:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:59,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256970509] [2020-10-16 13:35:59,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:59,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:35:59,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [79547794] [2020-10-16 13:35:59,375 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:59,378 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:59,391 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 13:35:59,391 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:59,395 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:59,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:59,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:59,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:59,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:59,414 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-16 13:35:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:59,435 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-10-16 13:35:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:59,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 13:35:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:59,447 INFO L225 Difference]: With dead ends: 70 [2020-10-16 13:35:59,448 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 13:35:59,449 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 [2020-10-16 13:35:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 13:35:59,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 13:35:59,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 13:35:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-10-16 13:35:59,491 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-10-16 13:35:59,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:59,492 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-10-16 13:35:59,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-10-16 13:35:59,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 13:35:59,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:59,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:59,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:35:59,494 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:59,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:59,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1509556844, now seen corresponding path program 1 times [2020-10-16 13:35:59,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:59,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073576673] [2020-10-16 13:35:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:59,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073576673] [2020-10-16 13:35:59,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:59,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:59,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1800795341] [2020-10-16 13:35:59,580 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:59,581 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:59,584 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-10-16 13:35:59,584 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:59,614 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:59,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:59,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:59,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:59,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:59,617 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-10-16 13:35:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:59,640 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-16 13:35:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:35:59,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-16 13:35:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:59,642 INFO L225 Difference]: With dead ends: 60 [2020-10-16 13:35:59,642 INFO L226 Difference]: Without dead ends: 30 [2020-10-16 13:35:59,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-16 13:35:59,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-16 13:35:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-16 13:35:59,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 51 transitions. [2020-10-16 13:35:59,648 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 51 transitions. Word has length 7 [2020-10-16 13:35:59,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:59,648 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 51 transitions. [2020-10-16 13:35:59,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:59,648 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 51 transitions. [2020-10-16 13:35:59,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:35:59,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:59,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:59,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:35:59,650 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:59,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:59,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1046667655, now seen corresponding path program 1 times [2020-10-16 13:35:59,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:59,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999213201] [2020-10-16 13:35:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:59,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999213201] [2020-10-16 13:35:59,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:59,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:59,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [824920104] [2020-10-16 13:35:59,715 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:59,716 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:59,719 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-16 13:35:59,719 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:59,732 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:59,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:59,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:59,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:59,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:59,733 INFO L87 Difference]: Start difference. First operand 30 states and 51 transitions. Second operand 4 states. [2020-10-16 13:35:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:59,746 INFO L93 Difference]: Finished difference Result 24 states and 38 transitions. [2020-10-16 13:35:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:35:59,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:35:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:59,747 INFO L225 Difference]: With dead ends: 24 [2020-10-16 13:35:59,747 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:35:59,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:35:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:35:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:35:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:35:59,748 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-16 13:35:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:59,749 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:35:59,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:59,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:35:59,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:35:59,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:35:59,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:35:59 BasicIcfg [2020-10-16 13:35:59,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:35:59,756 INFO L168 Benchmark]: Toolchain (without parser) took 3188.75 ms. Allocated memory was 147.3 MB in the beginning and 246.9 MB in the end (delta: 99.6 MB). Free memory was 101.7 MB in the beginning and 185.1 MB in the end (delta: -83.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:59,757 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:35:59,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.25 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.3 MB in the beginning and 160.5 MB in the end (delta: -59.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:59,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.01 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:59,759 INFO L168 Benchmark]: Boogie Preprocessor took 25.37 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:59,760 INFO L168 Benchmark]: RCFGBuilder took 372.15 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:59,761 INFO L168 Benchmark]: TraceAbstraction took 1952.99 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 135.7 MB in the beginning and 185.1 MB in the end (delta: -49.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:35:59,766 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.25 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.3 MB in the beginning and 160.5 MB in the end (delta: -59.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.01 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.37 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.15 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1952.99 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 135.7 MB in the beginning and 185.1 MB in the end (delta: -49.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 363 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 28 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 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: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 33 SDtfs, 25 SDslu, 22 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...