/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 16:59:32,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 16:59:32,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 16:59:32,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 16:59:32,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 16:59:32,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 16:59:32,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 16:59:32,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 16:59:32,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 16:59:32,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 16:59:32,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 16:59:32,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 16:59:32,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 16:59:32,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 16:59:32,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 16:59:32,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 16:59:32,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 16:59:32,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 16:59:32,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 16:59:32,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 16:59:32,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 16:59:32,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 16:59:32,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 16:59:32,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 16:59:32,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 16:59:32,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 16:59:32,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 16:59:32,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 16:59:32,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 16:59:32,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 16:59:32,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 16:59:32,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 16:59:32,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 16:59:32,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 16:59:32,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 16:59:32,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 16:59:32,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 16:59:33,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 16:59:33,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 16:59:33,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 16:59:33,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 16:59:33,011 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 16:59:33,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 16:59:33,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 16:59:33,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 16:59:33,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 16:59:33,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 16:59:33,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 16:59:33,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 16:59:33,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 16:59:33,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 16:59:33,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 16:59:33,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 16:59:33,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 16:59:33,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 16:59:33,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 16:59:33,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 16:59:33,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 16:59:33,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:59:33,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 16:59:33,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 16:59:33,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 16:59:33,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 16:59:33,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 16:59:33,016 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 16:59:33,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 16:59:33,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 16:59:33,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 16:59:33,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 16:59:33,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 16:59:33,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 16:59:33,319 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 16:59:33,320 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-11 16:59:33,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45644048d/a8c620f51909410888db20b8b77c2a59/FLAG8004c60fd [2020-10-11 16:59:33,885 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 16:59:33,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-11 16:59:33,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45644048d/a8c620f51909410888db20b8b77c2a59/FLAG8004c60fd [2020-10-11 16:59:34,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45644048d/a8c620f51909410888db20b8b77c2a59 [2020-10-11 16:59:34,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 16:59:34,218 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 16:59:34,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 16:59:34,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 16:59:34,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 16:59:34,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fc129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34, skipping insertion in model container [2020-10-11 16:59:34,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 16:59:34,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 16:59:34,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:59:34,776 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 16:59:34,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:59:34,915 INFO L208 MainTranslator]: Completed translation [2020-10-11 16:59:34,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34 WrapperNode [2020-10-11 16:59:34,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 16:59:34,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 16:59:34,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 16:59:34,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 16:59:34,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 16:59:34,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 16:59:34,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 16:59:34,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 16:59:34,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (1/1) ... [2020-10-11 16:59:34,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 16:59:34,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 16:59:34,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 16:59:34,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 16:59:34,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (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 [2020-10-11 16:59:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-10-11 16:59:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-10-11 16:59:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 16:59:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-10-11 16:59:35,064 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-10-11 16:59:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 16:59:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 16:59:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 16:59:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 16:59:35,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 16:59:35,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 16:59:35,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 16:59:35,067 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 16:59:35,423 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 16:59:35,423 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-11 16:59:35,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:59:35 BoogieIcfgContainer [2020-10-11 16:59:35,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 16:59:35,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 16:59:35,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 16:59:35,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 16:59:35,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:59:34" (1/3) ... [2020-10-11 16:59:35,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b53fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:59:35, skipping insertion in model container [2020-10-11 16:59:35,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:59:34" (2/3) ... [2020-10-11 16:59:35,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b53fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:59:35, skipping insertion in model container [2020-10-11 16:59:35,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:59:35" (3/3) ... [2020-10-11 16:59:35,434 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-10-11 16:59:35,446 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 16:59:35,453 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 16:59:35,454 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 16:59:35,484 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,485 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,485 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,485 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,486 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,486 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,486 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,487 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,488 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,488 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,489 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,490 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,490 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,490 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,491 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,491 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,491 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,492 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,502 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,503 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,503 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,503 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,504 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,504 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,510 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,510 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,510 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,510 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,511 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:59:35,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-11 16:59:35,558 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:59:35,558 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 16:59:35,559 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:59:35,559 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:59:35,559 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:59:35,559 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:59:35,559 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:59:35,559 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:59:35,574 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-10-11 16:59:35,622 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-10-11 16:59:35,622 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:59:35,628 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 6/84 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-10-11 16:59:35,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 84 transitions, 190 flow [2020-10-11 16:59:35,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 72 transitions, 156 flow [2020-10-11 16:59:35,653 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2020-10-11 16:59:35,653 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 16:59:35,654 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:59:35,655 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:59:35,655 INFO L429 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:59:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:59:35,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1013860672, now seen corresponding path program 1 times [2020-10-11 16:59:35,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:59:35,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742012016] [2020-10-11 16:59:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:59:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:59:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:59:36,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742012016] [2020-10-11 16:59:36,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:59:36,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:59:36,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931605486] [2020-10-11 16:59:36,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:59:36,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:59:36,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:59:36,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:59:36,071 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 84 [2020-10-11 16:59:36,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 156 flow. Second operand 3 states. [2020-10-11 16:59:36,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:59:36,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 84 [2020-10-11 16:59:36,075 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:59:36,109 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2020-10-11 16:59:36,110 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 16:59:36,110 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 70 events. 1/70 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 4/70 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2020-10-11 16:59:36,112 INFO L132 encePairwiseOnDemand]: 78/84 looper letters, 1 selfloop transitions, 2 changer transitions 1/68 dead transitions. [2020-10-11 16:59:36,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 68 transitions, 154 flow [2020-10-11 16:59:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:59:36,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:59:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions. [2020-10-11 16:59:36,128 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9484126984126984 [2020-10-11 16:59:36,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 239 transitions. [2020-10-11 16:59:36,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 239 transitions. [2020-10-11 16:59:36,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:59:36,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 239 transitions. [2020-10-11 16:59:36,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:59:36,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:59:36,145 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:59:36,148 INFO L185 Difference]: Start difference. First operand has 73 places, 72 transitions, 156 flow. Second operand 3 states and 239 transitions. [2020-10-11 16:59:36,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 68 transitions, 154 flow [2020-10-11 16:59:36,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 16:59:36,159 INFO L241 Difference]: Finished difference. Result has 71 places, 67 transitions, 142 flow [2020-10-11 16:59:36,162 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2020-10-11 16:59:36,163 INFO L341 CegarLoopForPetriNet]: 73 programPoint places, -2 predicate places. [2020-10-11 16:59:36,163 INFO L481 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 142 flow [2020-10-11 16:59:36,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:59:36,163 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:59:36,163 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:59:36,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 16:59:36,164 INFO L429 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:59:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:59:36,165 INFO L82 PathProgramCache]: Analyzing trace with hash 222356983, now seen corresponding path program 1 times [2020-10-11 16:59:36,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:59:36,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289602290] [2020-10-11 16:59:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:59:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:59:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:59:36,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289602290] [2020-10-11 16:59:36,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:59:36,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:59:36,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76039517] [2020-10-11 16:59:36,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:59:36,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:59:36,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:59:36,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:59:36,289 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 84 [2020-10-11 16:59:36,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 142 flow. Second operand 3 states. [2020-10-11 16:59:36,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:59:36,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 84 [2020-10-11 16:59:36,290 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:59:36,325 INFO L129 PetriNetUnfolder]: 4/100 cut-off events. [2020-10-11 16:59:36,326 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 16:59:36,326 INFO L80 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 198 event pairs, 1 based on Foata normal form. 2/98 useless extension candidates. Maximal degree in co-relation 77. Up to 9 conditions per place. [2020-10-11 16:59:36,327 INFO L132 encePairwiseOnDemand]: 78/84 looper letters, 4 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2020-10-11 16:59:36,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 162 flow [2020-10-11 16:59:36,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:59:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:59:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2020-10-11 16:59:36,331 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9325396825396826 [2020-10-11 16:59:36,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2020-10-11 16:59:36,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2020-10-11 16:59:36,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:59:36,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2020-10-11 16:59:36,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:59:36,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:59:36,335 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:59:36,335 INFO L185 Difference]: Start difference. First operand has 71 places, 67 transitions, 142 flow. Second operand 3 states and 235 transitions. [2020-10-11 16:59:36,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 162 flow [2020-10-11 16:59:36,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 69 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 16:59:36,339 INFO L241 Difference]: Finished difference. Result has 72 places, 69 transitions, 166 flow [2020-10-11 16:59:36,339 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2020-10-11 16:59:36,340 INFO L341 CegarLoopForPetriNet]: 73 programPoint places, -1 predicate places. [2020-10-11 16:59:36,340 INFO L481 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 166 flow [2020-10-11 16:59:36,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:59:36,340 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:59:36,341 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:59:36,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 16:59:36,341 INFO L429 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:59:36,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:59:36,342 INFO L82 PathProgramCache]: Analyzing trace with hash 802211903, now seen corresponding path program 1 times [2020-10-11 16:59:36,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:59:36,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147456460] [2020-10-11 16:59:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:59:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:59:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:59:36,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147456460] [2020-10-11 16:59:36,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:59:36,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:59:36,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147467798] [2020-10-11 16:59:36,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:59:36,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:59:36,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:59:36,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:59:36,458 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 84 [2020-10-11 16:59:36,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 166 flow. Second operand 3 states. [2020-10-11 16:59:36,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:59:36,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 84 [2020-10-11 16:59:36,459 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:59:36,486 INFO L129 PetriNetUnfolder]: 3/99 cut-off events. [2020-10-11 16:59:36,486 INFO L130 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2020-10-11 16:59:36,487 INFO L80 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 99 events. 3/99 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 196 event pairs, 2 based on Foata normal form. 4/101 useless extension candidates. Maximal degree in co-relation 81. Up to 11 conditions per place. [2020-10-11 16:59:36,488 INFO L132 encePairwiseOnDemand]: 80/84 looper letters, 5 selfloop transitions, 2 changer transitions 1/68 dead transitions. [2020-10-11 16:59:36,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 68 transitions, 174 flow [2020-10-11 16:59:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:59:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:59:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2020-10-11 16:59:36,491 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2020-10-11 16:59:36,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2020-10-11 16:59:36,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2020-10-11 16:59:36,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:59:36,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2020-10-11 16:59:36,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:59:36,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:59:36,494 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:59:36,494 INFO L185 Difference]: Start difference. First operand has 72 places, 69 transitions, 166 flow. Second operand 3 states and 234 transitions. [2020-10-11 16:59:36,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 68 transitions, 174 flow [2020-10-11 16:59:36,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 68 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 16:59:36,497 INFO L241 Difference]: Finished difference. Result has 73 places, 67 transitions, 160 flow [2020-10-11 16:59:36,498 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=73, PETRI_TRANSITIONS=67} [2020-10-11 16:59:36,498 INFO L341 CegarLoopForPetriNet]: 73 programPoint places, 0 predicate places. [2020-10-11 16:59:36,498 INFO L481 AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 160 flow [2020-10-11 16:59:36,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:59:36,498 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:59:36,498 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:59:36,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 16:59:36,499 INFO L429 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:59:36,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:59:36,499 INFO L82 PathProgramCache]: Analyzing trace with hash 224993065, now seen corresponding path program 1 times [2020-10-11 16:59:36,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:59:36,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278091793] [2020-10-11 16:59:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:59:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:59:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:59:36,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278091793] [2020-10-11 16:59:36,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:59:36,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:59:36,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452620054] [2020-10-11 16:59:36,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:59:36,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:59:36,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:59:36,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:59:36,601 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 84 [2020-10-11 16:59:36,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 160 flow. Second operand 3 states. [2020-10-11 16:59:36,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:59:36,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 84 [2020-10-11 16:59:36,602 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:59:36,624 INFO L129 PetriNetUnfolder]: 1/114 cut-off events. [2020-10-11 16:59:36,624 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2020-10-11 16:59:36,625 INFO L80 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 114 events. 1/114 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 272 event pairs, 1 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2020-10-11 16:59:36,625 INFO L132 encePairwiseOnDemand]: 82/84 looper letters, 2 selfloop transitions, 1 changer transitions 0/67 dead transitions. [2020-10-11 16:59:36,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 166 flow [2020-10-11 16:59:36,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:59:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:59:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2020-10-11 16:59:36,628 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2020-10-11 16:59:36,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2020-10-11 16:59:36,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2020-10-11 16:59:36,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:59:36,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2020-10-11 16:59:36,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:59:36,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:59:36,631 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:59:36,631 INFO L185 Difference]: Start difference. First operand has 73 places, 67 transitions, 160 flow. Second operand 3 states and 238 transitions. [2020-10-11 16:59:36,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 166 flow [2020-10-11 16:59:36,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:59:36,637 INFO L241 Difference]: Finished difference. Result has 75 places, 67 transitions, 163 flow [2020-10-11 16:59:36,638 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=75, PETRI_TRANSITIONS=67} [2020-10-11 16:59:36,638 INFO L341 CegarLoopForPetriNet]: 73 programPoint places, 2 predicate places. [2020-10-11 16:59:36,638 INFO L481 AbstractCegarLoop]: Abstraction has has 75 places, 67 transitions, 163 flow [2020-10-11 16:59:36,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:59:36,638 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:59:36,639 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:59:36,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 16:59:36,639 INFO L429 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:59:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:59:36,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1878729515, now seen corresponding path program 2 times [2020-10-11 16:59:36,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:59:36,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441031077] [2020-10-11 16:59:36,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:59:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:59:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:59:36,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441031077] [2020-10-11 16:59:36,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:59:36,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 16:59:36,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661874510] [2020-10-11 16:59:36,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 16:59:36,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:59:36,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 16:59:36,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-11 16:59:37,453 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2020-10-11 16:59:37,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 67 transitions, 163 flow. Second operand 7 states. [2020-10-11 16:59:37,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:59:37,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2020-10-11 16:59:37,454 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:59:37,562 INFO L129 PetriNetUnfolder]: 3/90 cut-off events. [2020-10-11 16:59:37,562 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2020-10-11 16:59:37,563 INFO L80 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 90 events. 3/90 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 0 based on Foata normal form. 4/94 useless extension candidates. Maximal degree in co-relation 78. Up to 7 conditions per place. [2020-10-11 16:59:37,563 INFO L132 encePairwiseOnDemand]: 76/84 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2020-10-11 16:59:37,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 66 transitions, 197 flow [2020-10-11 16:59:37,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 16:59:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 16:59:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 525 transitions. [2020-10-11 16:59:37,587 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.78125 [2020-10-11 16:59:37,587 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 525 transitions. [2020-10-11 16:59:37,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 525 transitions. [2020-10-11 16:59:37,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:59:37,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 525 transitions. [2020-10-11 16:59:37,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 16:59:37,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 16:59:37,591 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 16:59:37,591 INFO L185 Difference]: Start difference. First operand has 75 places, 67 transitions, 163 flow. Second operand 8 states and 525 transitions. [2020-10-11 16:59:37,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 66 transitions, 197 flow [2020-10-11 16:59:37,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 66 transitions, 180 flow, removed 4 selfloop flow, removed 4 redundant places. [2020-10-11 16:59:37,594 INFO L241 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2020-10-11 16:59:37,594 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2020-10-11 16:59:37,594 INFO L341 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2020-10-11 16:59:37,595 INFO L481 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2020-10-11 16:59:37,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 16:59:37,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 16:59:37,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 04:59:37 BasicIcfg [2020-10-11 16:59:37,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 16:59:37,604 INFO L168 Benchmark]: Toolchain (without parser) took 3384.96 ms. Allocated memory was 250.1 MB in the beginning and 369.6 MB in the end (delta: 119.5 MB). Free memory was 206.1 MB in the beginning and 339.5 MB in the end (delta: -133.4 MB). Peak memory consumption was 162.0 MB. Max. memory is 14.2 GB. [2020-10-11 16:59:37,604 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:59:37,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.46 ms. Allocated memory was 250.1 MB in the beginning and 309.9 MB in the end (delta: 59.8 MB). Free memory was 206.1 MB in the beginning and 263.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 14.2 GB. [2020-10-11 16:59:37,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 309.9 MB. Free memory was 263.2 MB in the beginning and 260.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:59:37,607 INFO L168 Benchmark]: Boogie Preprocessor took 26.66 ms. Allocated memory is still 309.9 MB. Free memory was 260.7 MB in the beginning and 258.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:59:37,607 INFO L168 Benchmark]: RCFGBuilder took 434.00 ms. Allocated memory is still 309.9 MB. Free memory was 258.2 MB in the beginning and 233.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.2 GB. [2020-10-11 16:59:37,608 INFO L168 Benchmark]: TraceAbstraction took 2174.55 ms. Allocated memory was 309.9 MB in the beginning and 369.6 MB in the end (delta: 59.8 MB). Free memory was 233.4 MB in the beginning and 339.5 MB in the end (delta: -106.0 MB). Peak memory consumption was 129.6 MB. Max. memory is 14.2 GB. [2020-10-11 16:59:37,612 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 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 696.46 ms. Allocated memory was 250.1 MB in the beginning and 309.9 MB in the end (delta: 59.8 MB). Free memory was 206.1 MB in the beginning and 263.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 309.9 MB. Free memory was 263.2 MB in the beginning and 260.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.66 ms. Allocated memory is still 309.9 MB. Free memory was 260.7 MB in the beginning and 258.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 434.00 ms. Allocated memory is still 309.9 MB. Free memory was 258.2 MB in the beginning and 233.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2174.55 ms. Allocated memory was 309.9 MB in the beginning and 369.6 MB in the end (delta: 59.8 MB). Free memory was 233.4 MB in the beginning and 339.5 MB in the end (delta: -106.0 MB). Peak memory consumption was 129.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 118 SDslu, 66 SDs, 0 SdLazy, 227 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 20443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...