/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/safe028_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:46:31,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:46:31,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:46:31,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:46:31,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:46:31,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:46:31,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:46:31,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:46:31,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:46:31,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:46:31,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:46:31,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:46:31,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:46:31,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:46:31,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:46:31,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:46:31,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:46:31,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:46:31,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:46:31,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:46:31,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:46:31,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:46:31,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:46:31,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:46:31,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:46:31,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:46:31,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:46:31,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:46:31,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:46:31,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:46:31,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:46:31,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:46:31,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:46:31,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:46:31,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:46:31,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:46:31,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:46:31,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:46:31,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:46:31,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:46:31,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:46:31,358 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 13:46:31,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:46:31,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:46:31,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:46:31,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:46:31,416 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:46:31,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:46:31,416 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:46:31,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:46:31,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:46:31,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:46:31,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:46:31,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:46:31,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:46:31,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:46:31,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:46:31,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:46:31,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:46:31,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:46:31,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:46:31,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:46:31,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:46:31,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:46:31,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:46:31,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:46:31,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:46:31,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:46:31,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:46:31,425 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:46:31,426 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:46:31,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:46:31,426 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:46:31,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:46:31,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:46:31,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:46:31,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:46:31,786 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:46:31,788 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-10-16 13:46:31,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb21809c6/b65531b8b78e4e35b68258b13b370fbe/FLAGd517302ca [2020-10-16 13:46:32,432 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:46:32,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-10-16 13:46:32,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb21809c6/b65531b8b78e4e35b68258b13b370fbe/FLAGd517302ca [2020-10-16 13:46:32,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb21809c6/b65531b8b78e4e35b68258b13b370fbe [2020-10-16 13:46:32,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:46:32,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:46:32,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:46:32,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:46:32,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:46:32,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:32" (1/1) ... [2020-10-16 13:46:32,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4b4aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:32, skipping insertion in model container [2020-10-16 13:46:32,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:32" (1/1) ... [2020-10-16 13:46:32,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:46:32,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:46:33,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:46:33,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:46:33,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:46:33,410 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:46:33,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33 WrapperNode [2020-10-16 13:46:33,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:46:33,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:46:33,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:46:33,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:46:33,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:46:33,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:46:33,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:46:33,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:46:33,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (1/1) ... [2020-10-16 13:46:33,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:46:33,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:46:33,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:46:33,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:46:33,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (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 13:46:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:46:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:46:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:46:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:46:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:46:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:46:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:46:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:46:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:46:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:46:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:46:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:46:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:46:33,602 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 13:46:33,978 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:46:33,978 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:46:33,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:33 BoogieIcfgContainer [2020-10-16 13:46:33,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:46:33,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:46:33,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:46:33,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:46:33,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:46:32" (1/3) ... [2020-10-16 13:46:33,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f7f60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:33, skipping insertion in model container [2020-10-16 13:46:33,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:33" (2/3) ... [2020-10-16 13:46:33,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f7f60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:33, skipping insertion in model container [2020-10-16 13:46:33,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:33" (3/3) ... [2020-10-16 13:46:33,991 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2020-10-16 13:46:34,003 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:46:34,003 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:46:34,011 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:46:34,012 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:46:34,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,041 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,043 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,045 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,049 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,049 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,049 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,049 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,056 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,057 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,059 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,059 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,059 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:46:34,061 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:46:34,074 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:46:34,094 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:46:34,094 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:46:34,094 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:46:34,094 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:46:34,094 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:46:34,095 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:46:34,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:46:34,095 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:46:34,106 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:46:34,107 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:46:34,109 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:46:34,111 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 13:46:34,154 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 13:46:34,154 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:46:34,159 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 13:46:34,162 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-16 13:46:35,591 INFO L132 LiptonReduction]: Checked pairs total: 2123 [2020-10-16 13:46:35,591 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 13:46:35,598 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 13:46:35,620 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-16 13:46:35,622 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-16 13:46:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:46:35,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:46:35,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:46:35,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:46:35,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:46:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-10-16 13:46:35,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:46:35,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429130903] [2020-10-16 13:46:35,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:46:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:46:35,887 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 13:46:35,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429130903] [2020-10-16 13:46:35,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:46:35,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:46:35,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2130071141] [2020-10-16 13:46:35,891 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:46:35,895 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:46:35,915 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:46:35,916 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:46:35,921 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:46:35,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:46:35,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:46:35,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:46:35,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:46:35,944 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-16 13:46:35,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:46:35,982 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-16 13:46:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:46:35,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:46:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:46:36,000 INFO L225 Difference]: With dead ends: 214 [2020-10-16 13:46:36,001 INFO L226 Difference]: Without dead ends: 166 [2020-10-16 13:46:36,002 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 13:46:36,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-16 13:46:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-16 13:46:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-16 13:46:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-16 13:46:36,072 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-16 13:46:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:46:36,073 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-16 13:46:36,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:46:36,074 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-16 13:46:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:46:36,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:46:36,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:46:36,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:46:36,076 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:46:36,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:46:36,076 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-10-16 13:46:36,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:46:36,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070316335] [2020-10-16 13:46:36,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:46:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:46:36,191 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 13:46:36,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070316335] [2020-10-16 13:46:36,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:46:36,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:46:36,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1217750219] [2020-10-16 13:46:36,192 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:46:36,193 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:46:36,195 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-16 13:46:36,195 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:46:36,212 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:46:36,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:46:36,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:46:36,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:46:36,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:46:36,214 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-16 13:46:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:46:36,241 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-16 13:46:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:46:36,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:46:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:46:36,244 INFO L225 Difference]: With dead ends: 202 [2020-10-16 13:46:36,244 INFO L226 Difference]: Without dead ends: 130 [2020-10-16 13:46:36,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:46:36,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-16 13:46:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-16 13:46:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-16 13:46:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-16 13:46:36,260 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-16 13:46:36,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:46:36,260 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-16 13:46:36,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:46:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-16 13:46:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:46:36,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:46:36,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:46:36,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:46:36,263 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:46:36,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:46:36,263 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-10-16 13:46:36,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:46:36,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846045322] [2020-10-16 13:46:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:46:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:46:36,336 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 13:46:36,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846045322] [2020-10-16 13:46:36,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:46:36,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:46:36,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [669070959] [2020-10-16 13:46:36,338 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:46:36,338 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:46:36,340 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-16 13:46:36,341 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:46:36,376 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:46:36,399 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:46:36,417 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1553#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:46:36,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:46:36,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:46:36,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:46:36,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:46:36,418 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-10-16 13:46:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:46:36,477 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-10-16 13:46:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:46:36,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 13:46:36,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:46:36,479 INFO L225 Difference]: With dead ends: 121 [2020-10-16 13:46:36,479 INFO L226 Difference]: Without dead ends: 85 [2020-10-16 13:46:36,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:46:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-16 13:46:36,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-16 13:46:36,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-16 13:46:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-16 13:46:36,488 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-10-16 13:46:36,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:46:36,488 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-16 13:46:36,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:46:36,488 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-16 13:46:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:46:36,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:46:36,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:46:36,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:46:36,494 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:46:36,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:46:36,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-10-16 13:46:36,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:46:36,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269793872] [2020-10-16 13:46:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:46:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:46:36,564 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 13:46:36,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269793872] [2020-10-16 13:46:36,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:46:36,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:46:36,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1333816280] [2020-10-16 13:46:36,565 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:46:36,567 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:46:36,569 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-16 13:46:36,569 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:46:36,602 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1855#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:46:36,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:46:36,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:46:36,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:46:36,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:46:36,604 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 7 states. [2020-10-16 13:46:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:46:36,657 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-16 13:46:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:46:36,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-16 13:46:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:46:36,659 INFO L225 Difference]: With dead ends: 80 [2020-10-16 13:46:36,659 INFO L226 Difference]: Without dead ends: 72 [2020-10-16 13:46:36,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:46:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-16 13:46:36,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-16 13:46:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-16 13:46:36,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-16 13:46:36,664 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-16 13:46:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:46:36,665 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-16 13:46:36,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:46:36,665 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-16 13:46:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:46:36,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:46:36,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:46:36,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:46:36,667 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:46:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:46:36,667 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-10-16 13:46:36,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:46:36,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682006236] [2020-10-16 13:46:36,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:46:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:46:36,716 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 13:46:36,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682006236] [2020-10-16 13:46:36,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:46:36,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:46:36,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1928503464] [2020-10-16 13:46:36,717 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:46:36,719 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:46:36,745 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-10-16 13:46:36,745 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:46:36,771 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:46:36,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:46:36,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:46:36,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:46:36,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:46:36,773 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-16 13:46:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:46:36,789 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-10-16 13:46:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:46:36,790 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 13:46:36,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:46:36,791 INFO L225 Difference]: With dead ends: 97 [2020-10-16 13:46:36,791 INFO L226 Difference]: Without dead ends: 48 [2020-10-16 13:46:36,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 13:46:36,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-16 13:46:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-16 13:46:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-16 13:46:36,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-10-16 13:46:36,795 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-10-16 13:46:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:46:36,795 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-10-16 13:46:36,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:46:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-10-16 13:46:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:46:36,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:46:36,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:46:36,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:46:36,797 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:46:36,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:46:36,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-10-16 13:46:36,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:46:36,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904891639] [2020-10-16 13:46:36,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:46:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:46:36,832 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 13:46:36,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904891639] [2020-10-16 13:46:36,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:46:36,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:46:36,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1832425452] [2020-10-16 13:46:36,834 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:46:36,836 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:46:36,840 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 64 transitions. [2020-10-16 13:46:36,841 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:46:36,928 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:46:36,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:46:36,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:46:36,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:46:36,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:46:36,929 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-10-16 13:46:36,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:46:36,939 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-10-16 13:46:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:46:36,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 13:46:36,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:46:36,940 INFO L225 Difference]: With dead ends: 47 [2020-10-16 13:46:36,940 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:46:36,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 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 13:46:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:46:36,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:46:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:46:36,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:46:36,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 13:46:36,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:46:36,942 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:46:36,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:46:36,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:46:36,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:46:36,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:46:36,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:46:36 BasicIcfg [2020-10-16 13:46:36,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:46:36,949 INFO L168 Benchmark]: Toolchain (without parser) took 4235.72 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 101.8 MB in the beginning and 173.5 MB in the end (delta: -71.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:46:36,950 INFO L168 Benchmark]: CDTParser took 0.22 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:46:36,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.59 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 160.6 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:46:36,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.62 ms. Allocated memory is still 203.9 MB. Free memory was 160.6 MB in the beginning and 158.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:46:36,953 INFO L168 Benchmark]: Boogie Preprocessor took 30.65 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:46:36,953 INFO L168 Benchmark]: RCFGBuilder took 462.66 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 135.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:46:36,954 INFO L168 Benchmark]: TraceAbstraction took 2964.00 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 134.3 MB in the beginning and 173.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:46:36,959 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.59 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 160.6 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.62 ms. Allocated memory is still 203.9 MB. Free memory was 160.6 MB in the beginning and 158.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.65 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.66 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 135.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2964.00 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 134.3 MB in the beginning and 173.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 627 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 29 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 77 PlacesBefore, 30 PlacesAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2123 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 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 107 SDtfs, 117 SDslu, 151 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...