/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-c7e336b [2020-10-06 01:10:22,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:10:22,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:10:22,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:10:22,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:10:22,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:10:22,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:10:22,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:10:22,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:10:22,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:10:22,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:10:22,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:10:22,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:10:22,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:10:22,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:10:22,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:10:22,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:10:22,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:10:22,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:10:22,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:10:22,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:10:22,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:10:22,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:10:22,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:10:22,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:10:22,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:10:22,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:10:22,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:10:22,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:10:22,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:10:22,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:10:22,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:10:22,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:10:22,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:10:22,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:10:22,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:10:22,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:10:22,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:10:22,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:10:22,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:10:22,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:10:22,858 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:10:22,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:10:22,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:10:22,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:10:22,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:10:22,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:10:22,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:10:22,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:10:22,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:10:22,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:10:22,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:10:22,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:10:22,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:10:22,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:10:22,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:10:22,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:10:22,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:10:22,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:10:22,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:10:22,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:10:22,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:10:22,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:10:22,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:10:22,863 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:10:22,863 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:10:22,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:10:22,863 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:10:23,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:10:23,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:10:23,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:10:23,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:10:23,203 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:10:23,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-10-06 01:10:23,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90edadbb2/1bc665ef678d49f392bded60477955dd/FLAGcb9144d45 [2020-10-06 01:10:23,828 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:10:23,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2020-10-06 01:10:23,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90edadbb2/1bc665ef678d49f392bded60477955dd/FLAGcb9144d45 [2020-10-06 01:10:24,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90edadbb2/1bc665ef678d49f392bded60477955dd [2020-10-06 01:10:24,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:10:24,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:10:24,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:10:24,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:10:24,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:10:24,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f3ca86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24, skipping insertion in model container [2020-10-06 01:10:24,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:10:24,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:10:24,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:10:24,686 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:10:24,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:10:24,830 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:10:24,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24 WrapperNode [2020-10-06 01:10:24,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:10:24,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:10:24,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:10:24,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:10:24,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:10:24,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:10:24,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:10:24,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:10:24,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... [2020-10-06 01:10:24,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:10:24,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:10:24,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:10:24,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:10:24,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:10:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:10:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:10:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:10:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:10:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:10:24,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:10:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:10:24,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:10:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:10:24,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:10:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:10:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:10:24,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:10:24,994 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:10:25,353 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:10:25,353 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:10:25,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:10:25 BoogieIcfgContainer [2020-10-06 01:10:25,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:10:25,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:10:25,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:10:25,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:10:25,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:10:24" (1/3) ... [2020-10-06 01:10:25,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df5b96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:10:25, skipping insertion in model container [2020-10-06 01:10:25,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:24" (2/3) ... [2020-10-06 01:10:25,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df5b96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:10:25, skipping insertion in model container [2020-10-06 01:10:25,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:10:25" (3/3) ... [2020-10-06 01:10:25,365 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2020-10-06 01:10:25,375 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:10:25,376 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:10:25,385 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:10:25,387 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:10:25,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,434 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,435 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,436 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,436 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,437 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,437 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,438 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,439 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,439 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,452 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,453 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,456 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,457 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,457 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:25,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:10:25,508 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:10:25,508 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:10:25,508 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:10:25,509 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:10:25,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:10:25,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:10:25,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:10:25,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:10:25,534 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-06 01:10:25,537 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-06 01:10:25,587 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-06 01:10:25,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:10:25,594 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. [2020-10-06 01:10:25,597 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-06 01:10:25,619 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-06 01:10:25,619 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:10:25,620 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. [2020-10-06 01:10:25,622 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-10-06 01:10:25,624 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:10:27,048 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-10-06 01:10:27,048 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-10-06 01:10:27,053 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-06 01:10:27,074 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-06 01:10:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-06 01:10:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:10:27,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:10:27,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:10:27,086 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:10:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:10:27,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-10-06 01:10:27,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:10:27,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779218546] [2020-10-06 01:10:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:10:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:10:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:10:27,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779218546] [2020-10-06 01:10:27,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:10:27,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:10:27,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2036711674] [2020-10-06 01:10:27,322 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:10:27,327 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:10:27,342 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:10:27,342 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:10:27,346 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:10:27,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:10:27,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:10:27,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:10:27,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:10:27,364 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-06 01:10:27,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:10:27,395 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-06 01:10:27,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:10:27,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 01:10:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:10:27,411 INFO L225 Difference]: With dead ends: 214 [2020-10-06 01:10:27,412 INFO L226 Difference]: Without dead ends: 166 [2020-10-06 01:10:27,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:10:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-06 01:10:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-06 01:10:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-06 01:10:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-06 01:10:27,472 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-06 01:10:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:10:27,473 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-06 01:10:27,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:10:27,473 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-06 01:10:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:10:27,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:10:27,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:10:27,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:10:27,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:10:27,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:10:27,476 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-10-06 01:10:27,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:10:27,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551506919] [2020-10-06 01:10:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:10:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:10:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:10:27,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551506919] [2020-10-06 01:10:27,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:10:27,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:10:27,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [57055884] [2020-10-06 01:10:27,619 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:10:27,620 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:10:27,622 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-06 01:10:27,622 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:10:27,638 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:10:27,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:10:27,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:10:27,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:10:27,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:10:27,641 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-06 01:10:27,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:10:27,668 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-06 01:10:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:10:27,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:10:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:10:27,671 INFO L225 Difference]: With dead ends: 202 [2020-10-06 01:10:27,671 INFO L226 Difference]: Without dead ends: 130 [2020-10-06 01:10:27,672 INFO L675 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 [2020-10-06 01:10:27,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-06 01:10:27,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-06 01:10:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-06 01:10:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-06 01:10:27,687 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-06 01:10:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:10:27,687 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-06 01:10:27,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:10:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-06 01:10:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:10:27,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:10:27,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:10:27,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:10:27,689 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:10:27,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:10:27,690 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-10-06 01:10:27,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:10:27,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944385301] [2020-10-06 01:10:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:10:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:10:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:10:27,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944385301] [2020-10-06 01:10:27,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:10:27,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:10:27,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [394106172] [2020-10-06 01:10:27,821 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:10:27,822 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:10:27,824 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-06 01:10:27,825 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:10:27,864 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:10:27,888 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:10:27,900 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1553#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-06 01:10:27,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:10:27,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:10:27,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:10:27,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:10:27,901 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-10-06 01:10:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:10:27,968 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-10-06 01:10:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:10:27,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-06 01:10:27,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:10:27,970 INFO L225 Difference]: With dead ends: 121 [2020-10-06 01:10:27,970 INFO L226 Difference]: Without dead ends: 85 [2020-10-06 01:10:27,970 INFO L675 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 [2020-10-06 01:10:27,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-06 01:10:27,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-06 01:10:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-06 01:10:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-06 01:10:27,978 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-10-06 01:10:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:10:27,978 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-06 01:10:27,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:10:27,979 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-06 01:10:27,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:10:27,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:10:27,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:10:27,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:10:27,980 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:10:27,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:10:27,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-10-06 01:10:27,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:10:27,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440949407] [2020-10-06 01:10:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:10:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:10:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:10:28,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440949407] [2020-10-06 01:10:28,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:10:28,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:10:28,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [451984892] [2020-10-06 01:10:28,051 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:10:28,053 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:10:28,055 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-06 01:10:28,055 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:10:28,089 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1855#(<= ~__unbuffered_cnt~0 0)] [2020-10-06 01:10:28,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:10:28,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:10:28,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:10:28,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:10:28,091 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 7 states. [2020-10-06 01:10:28,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:10:28,147 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-06 01:10:28,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:10:28,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-06 01:10:28,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:10:28,149 INFO L225 Difference]: With dead ends: 80 [2020-10-06 01:10:28,149 INFO L226 Difference]: Without dead ends: 72 [2020-10-06 01:10:28,150 INFO L675 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 [2020-10-06 01:10:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-06 01:10:28,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-06 01:10:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-06 01:10:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-06 01:10:28,155 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-06 01:10:28,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:10:28,155 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-06 01:10:28,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:10:28,156 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-06 01:10:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:10:28,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:10:28,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:10:28,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:10:28,157 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:10:28,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:10:28,158 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-10-06 01:10:28,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:10:28,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31672772] [2020-10-06 01:10:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:10:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:10:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:10:28,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31672772] [2020-10-06 01:10:28,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:10:28,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:10:28,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1631468606] [2020-10-06 01:10:28,228 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:10:28,230 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:10:28,235 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-10-06 01:10:28,235 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:10:28,270 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:10:28,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:10:28,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:10:28,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:10:28,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:10:28,271 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-06 01:10:28,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:10:28,289 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-10-06 01:10:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:10:28,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-06 01:10:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:10:28,290 INFO L225 Difference]: With dead ends: 97 [2020-10-06 01:10:28,290 INFO L226 Difference]: Without dead ends: 48 [2020-10-06 01:10:28,290 INFO L675 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 [2020-10-06 01:10:28,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-06 01:10:28,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-06 01:10:28,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-06 01:10:28,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-10-06 01:10:28,294 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-10-06 01:10:28,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:10:28,294 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-10-06 01:10:28,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:10:28,295 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-10-06 01:10:28,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:10:28,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:10:28,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:10:28,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:10:28,296 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:10:28,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:10:28,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-10-06 01:10:28,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:10:28,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368185750] [2020-10-06 01:10:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:10:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:10:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:10:28,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368185750] [2020-10-06 01:10:28,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:10:28,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:10:28,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [400746858] [2020-10-06 01:10:28,342 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:10:28,344 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:10:28,350 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 64 transitions. [2020-10-06 01:10:28,351 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:10:28,473 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:10:28,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:10:28,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:10:28,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:10:28,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:10:28,475 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-10-06 01:10:28,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:10:28,484 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-10-06 01:10:28,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:10:28,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-06 01:10:28,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:10:28,485 INFO L225 Difference]: With dead ends: 47 [2020-10-06 01:10:28,485 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:10:28,486 INFO L675 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 [2020-10-06 01:10:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:10:28,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:10:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:10:28,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:10:28,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-06 01:10:28,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:10:28,487 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:10:28,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:10:28,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:10:28,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:10:28,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:10:28,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:10:28 BasicIcfg [2020-10-06 01:10:28,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:10:28,494 INFO L168 Benchmark]: Toolchain (without parser) took 4368.64 ms. Allocated memory was 146.8 MB in the beginning and 246.4 MB in the end (delta: 99.6 MB). Free memory was 101.7 MB in the beginning and 171.4 MB in the end (delta: -69.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:10:28,495 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:10:28,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.45 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 160.2 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:10:28,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.70 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:10:28,498 INFO L168 Benchmark]: Boogie Preprocessor took 34.94 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:10:28,498 INFO L168 Benchmark]: RCFGBuilder took 440.03 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 134.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:10:28,499 INFO L168 Benchmark]: TraceAbstraction took 3134.52 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 133.9 MB in the beginning and 171.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:10:28,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.45 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 160.2 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.70 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.94 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.03 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 134.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3134.52 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 133.9 MB in the beginning and 171.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 627 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, 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, 0.3s 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...