/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-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 13:49:39,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 13:49:39,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 13:49:39,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 13:49:39,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 13:49:39,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 13:49:39,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 13:49:39,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 13:49:39,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 13:49:39,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 13:49:39,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 13:49:39,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 13:49:39,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 13:49:39,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 13:49:39,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 13:49:39,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 13:49:39,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 13:49:39,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 13:49:39,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 13:49:39,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 13:49:39,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 13:49:39,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 13:49:39,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 13:49:39,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 13:49:39,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 13:49:39,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 13:49:39,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 13:49:39,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 13:49:39,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 13:49:39,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 13:49:39,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 13:49:39,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 13:49:39,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 13:49:39,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 13:49:39,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 13:49:39,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 13:49:39,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 13:49:39,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 13:49:39,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 13:49:39,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 13:49:39,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 13:49:39,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 13:49:39,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 13:49:39,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 13:49:39,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 13:49:39,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 13:49:39,824 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 13:49:39,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 13:49:39,824 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 13:49:39,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 13:49:39,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 13:49:39,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 13:49:39,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 13:49:39,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 13:49:39,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 13:49:39,827 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 13:49:39,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 13:49:39,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 13:49:39,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 13:49:39,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 13:49:39,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 13:49:39,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 13:49:39,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 13:49:39,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 13:49:39,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 13:49:39,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 13:49:39,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 13:49:39,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 13:49:39,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 13:49:39,829 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 13:49:39,830 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 13:49:39,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 13:49:39,830 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 13:49:40,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 13:49:40,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 13:49:40,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 13:49:40,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 13:49:40,294 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 13:49:40,295 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-09-15 13:49:40,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/702518ab2/565d6b2bfab64e87b8d6976d02035847/FLAG092de2280 [2020-09-15 13:49:41,044 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 13:49:41,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-09-15 13:49:41,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/702518ab2/565d6b2bfab64e87b8d6976d02035847/FLAG092de2280 [2020-09-15 13:49:41,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/702518ab2/565d6b2bfab64e87b8d6976d02035847 [2020-09-15 13:49:41,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 13:49:41,259 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 13:49:41,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 13:49:41,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 13:49:41,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 13:49:41,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:49:41" (1/1) ... [2020-09-15 13:49:41,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433254ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:41, skipping insertion in model container [2020-09-15 13:49:41,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:49:41" (1/1) ... [2020-09-15 13:49:41,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 13:49:41,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 13:49:41,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:49:41,931 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 13:49:42,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:49:42,098 INFO L208 MainTranslator]: Completed translation [2020-09-15 13:49:42,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42 WrapperNode [2020-09-15 13:49:42,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 13:49:42,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 13:49:42,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 13:49:42,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 13:49:42,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 13:49:42,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 13:49:42,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 13:49:42,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 13:49:42,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... [2020-09-15 13:49:42,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 13:49:42,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 13:49:42,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 13:49:42,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 13:49:42,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 13:49:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-09-15 13:49:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-09-15 13:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-15 13:49:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-09-15 13:49:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-09-15 13:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 13:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-15 13:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 13:49:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 13:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-15 13:49:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 13:49:42,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 13:49:42,269 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 13:49:42,697 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 13:49:42,698 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-15 13:49:42,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:49:42 BoogieIcfgContainer [2020-09-15 13:49:42,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 13:49:42,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 13:49:42,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 13:49:42,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 13:49:42,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:49:41" (1/3) ... [2020-09-15 13:49:42,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2246204d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:49:42, skipping insertion in model container [2020-09-15 13:49:42,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:49:42" (2/3) ... [2020-09-15 13:49:42,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2246204d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:49:42, skipping insertion in model container [2020-09-15 13:49:42,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:49:42" (3/3) ... [2020-09-15 13:49:42,713 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-09-15 13:49:42,725 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 13:49:42,725 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 13:49:42,736 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-15 13:49:42,737 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 13:49:42,770 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,771 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,771 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,771 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,772 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,772 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,772 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,772 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,773 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,773 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,774 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,774 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,775 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,775 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,775 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,775 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,776 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,776 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,780 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,781 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,781 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,781 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,781 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,781 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,788 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,789 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,789 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,789 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,790 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:49:42,833 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-15 13:49:42,866 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 13:49:42,867 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 13:49:42,867 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 13:49:42,867 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 13:49:42,867 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 13:49:42,867 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 13:49:42,868 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 13:49:42,869 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 13:49:42,897 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 190 flow [2020-09-15 13:49:42,901 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-09-15 13:49:42,971 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-09-15 13:49:42,971 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-15 13:49:42,978 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. [2020-09-15 13:49:42,981 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-09-15 13:49:43,005 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-09-15 13:49:43,005 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-15 13:49:43,006 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. [2020-09-15 13:49:43,008 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 886 [2020-09-15 13:49:43,010 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 13:49:44,696 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-09-15 13:49:45,243 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-09-15 13:49:45,459 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-09-15 13:49:45,469 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2843 [2020-09-15 13:49:45,470 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-09-15 13:49:45,475 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 32 transitions, 86 flow [2020-09-15 13:49:45,499 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 218 states. [2020-09-15 13:49:45,501 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states. [2020-09-15 13:49:45,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-15 13:49:45,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:49:45,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-15 13:49:45,512 INFO L427 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:49:45,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:49:45,520 INFO L82 PathProgramCache]: Analyzing trace with hash 293912045, now seen corresponding path program 1 times [2020-09-15 13:49:45,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:49:45,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373076537] [2020-09-15 13:49:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:49:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:49:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:49:45,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373076537] [2020-09-15 13:49:45,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:49:45,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:49:45,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [16239034] [2020-09-15 13:49:45,788 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:49:45,793 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:49:45,810 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-15 13:49:45,810 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:49:45,813 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:49:45,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:49:45,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:49:45,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:49:45,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:45,836 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 3 states. [2020-09-15 13:49:45,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:49:45,891 INFO L93 Difference]: Finished difference Result 218 states and 483 transitions. [2020-09-15 13:49:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:49:45,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-09-15 13:49:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:49:45,929 INFO L225 Difference]: With dead ends: 218 [2020-09-15 13:49:45,929 INFO L226 Difference]: Without dead ends: 188 [2020-09-15 13:49:45,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:45,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-09-15 13:49:45,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-09-15 13:49:45,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-15 13:49:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 412 transitions. [2020-09-15 13:49:45,996 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 412 transitions. Word has length 5 [2020-09-15 13:49:45,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:49:45,997 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 412 transitions. [2020-09-15 13:49:45,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:49:45,997 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 412 transitions. [2020-09-15 13:49:45,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 13:49:45,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:49:45,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:49:45,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 13:49:45,999 INFO L427 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:49:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:49:46,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2033676981, now seen corresponding path program 1 times [2020-09-15 13:49:46,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:49:46,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919795352] [2020-09-15 13:49:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:49:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:49:46,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:49:46,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919795352] [2020-09-15 13:49:46,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:49:46,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:49:46,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [473947850] [2020-09-15 13:49:46,123 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:49:46,125 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:49:46,126 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 13:49:46,126 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:49:46,127 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:49:46,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:49:46,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:49:46,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:49:46,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:46,130 INFO L87 Difference]: Start difference. First operand 188 states and 412 transitions. Second operand 3 states. [2020-09-15 13:49:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:49:46,160 INFO L93 Difference]: Finished difference Result 207 states and 431 transitions. [2020-09-15 13:49:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:49:46,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 13:49:46,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:49:46,163 INFO L225 Difference]: With dead ends: 207 [2020-09-15 13:49:46,163 INFO L226 Difference]: Without dead ends: 175 [2020-09-15 13:49:46,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:46,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-15 13:49:46,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2020-09-15 13:49:46,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-15 13:49:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 339 transitions. [2020-09-15 13:49:46,185 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 339 transitions. Word has length 8 [2020-09-15 13:49:46,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:49:46,189 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 339 transitions. [2020-09-15 13:49:46,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:49:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 339 transitions. [2020-09-15 13:49:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 13:49:46,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:49:46,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:49:46,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 13:49:46,191 INFO L427 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:49:46,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:49:46,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1494763716, now seen corresponding path program 1 times [2020-09-15 13:49:46,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:49:46,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119474243] [2020-09-15 13:49:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:49:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:49:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:49:46,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119474243] [2020-09-15 13:49:46,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:49:46,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:49:46,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1423127509] [2020-09-15 13:49:46,275 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:49:46,276 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:49:46,277 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 13:49:46,277 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:49:46,277 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:49:46,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:49:46,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:49:46,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:49:46,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:46,279 INFO L87 Difference]: Start difference. First operand 157 states and 339 transitions. Second operand 3 states. [2020-09-15 13:49:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:49:46,296 INFO L93 Difference]: Finished difference Result 154 states and 316 transitions. [2020-09-15 13:49:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:49:46,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 13:49:46,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:49:46,298 INFO L225 Difference]: With dead ends: 154 [2020-09-15 13:49:46,298 INFO L226 Difference]: Without dead ends: 100 [2020-09-15 13:49:46,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-15 13:49:46,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-09-15 13:49:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-15 13:49:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 189 transitions. [2020-09-15 13:49:46,307 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 189 transitions. Word has length 8 [2020-09-15 13:49:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:49:46,307 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 189 transitions. [2020-09-15 13:49:46,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:49:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 189 transitions. [2020-09-15 13:49:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 13:49:46,309 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:49:46,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:49:46,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 13:49:46,309 INFO L427 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:49:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:49:46,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1061881055, now seen corresponding path program 1 times [2020-09-15 13:49:46,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:49:46,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911702970] [2020-09-15 13:49:46,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:49:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:49:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:49:46,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911702970] [2020-09-15 13:49:46,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:49:46,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 13:49:46,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [967880264] [2020-09-15 13:49:46,377 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:49:46,378 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:49:46,381 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 34 transitions. [2020-09-15 13:49:46,381 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:49:46,424 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2004#(not (= (select (select |#pthreadsMutex| |~#m_busy~0.base|) |~#m_busy~0.offset|) 0))] [2020-09-15 13:49:46,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 13:49:46,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:49:46,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 13:49:46,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-15 13:49:46,426 INFO L87 Difference]: Start difference. First operand 100 states and 189 transitions. Second operand 4 states. [2020-09-15 13:49:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:49:46,466 INFO L93 Difference]: Finished difference Result 88 states and 153 transitions. [2020-09-15 13:49:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:49:46,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-15 13:49:46,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:49:46,468 INFO L225 Difference]: With dead ends: 88 [2020-09-15 13:49:46,468 INFO L226 Difference]: Without dead ends: 76 [2020-09-15 13:49:46,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-15 13:49:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-15 13:49:46,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-09-15 13:49:46,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-15 13:49:46,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 129 transitions. [2020-09-15 13:49:46,474 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 129 transitions. Word has length 13 [2020-09-15 13:49:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:49:46,475 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 129 transitions. [2020-09-15 13:49:46,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 13:49:46,475 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 129 transitions. [2020-09-15 13:49:46,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 13:49:46,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:49:46,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:49:46,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 13:49:46,476 INFO L427 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:49:46,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:49:46,477 INFO L82 PathProgramCache]: Analyzing trace with hash 9063593, now seen corresponding path program 2 times [2020-09-15 13:49:46,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:49:46,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250062849] [2020-09-15 13:49:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:49:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:49:46,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:49:46,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250062849] [2020-09-15 13:49:46,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:49:46,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 13:49:46,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1498411600] [2020-09-15 13:49:46,557 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:49:46,559 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:49:46,563 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions. [2020-09-15 13:49:46,563 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:49:46,610 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:49:46,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:49:46,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:49:46,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:49:46,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:46,611 INFO L87 Difference]: Start difference. First operand 76 states and 129 transitions. Second operand 3 states. [2020-09-15 13:49:46,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:49:46,617 INFO L93 Difference]: Finished difference Result 30 states and 48 transitions. [2020-09-15 13:49:46,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:49:46,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-09-15 13:49:46,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:49:46,618 INFO L225 Difference]: With dead ends: 30 [2020-09-15 13:49:46,618 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 13:49:46,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:49:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 13:49:46,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 13:49:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 13:49:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 13:49:46,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-09-15 13:49:46,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:49:46,620 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 13:49:46,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:49:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 13:49:46,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 13:49:46,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 13:49:46,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:49:46 BasicIcfg [2020-09-15 13:49:46,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 13:49:46,627 INFO L168 Benchmark]: Toolchain (without parser) took 5372.22 ms. Allocated memory was 141.0 MB in the beginning and 245.4 MB in the end (delta: 104.3 MB). Free memory was 103.0 MB in the beginning and 126.3 MB in the end (delta: -23.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:49:46,628 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-15 13:49:46,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.97 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 165.1 MB in the end (delta: -62.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-15 13:49:46,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.04 ms. Allocated memory is still 205.5 MB. Free memory was 165.1 MB in the beginning and 163.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-15 13:49:46,631 INFO L168 Benchmark]: Boogie Preprocessor took 30.99 ms. Allocated memory is still 205.5 MB. Free memory was 163.0 MB in the beginning and 161.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:49:46,632 INFO L168 Benchmark]: RCFGBuilder took 513.26 ms. Allocated memory is still 205.5 MB. Free memory was 161.0 MB in the beginning and 136.8 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-15 13:49:46,633 INFO L168 Benchmark]: TraceAbstraction took 3920.51 ms. Allocated memory was 205.5 MB in the beginning and 245.4 MB in the end (delta: 39.8 MB). Free memory was 136.1 MB in the beginning and 126.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. [2020-09-15 13:49:46,637 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 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 839.97 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 165.1 MB in the end (delta: -62.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.04 ms. Allocated memory is still 205.5 MB. Free memory was 165.1 MB in the beginning and 163.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.99 ms. Allocated memory is still 205.5 MB. Free memory was 163.0 MB in the beginning and 161.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 513.26 ms. Allocated memory is still 205.5 MB. Free memory was 161.0 MB in the beginning and 136.8 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3920.51 ms. Allocated memory was 205.5 MB in the beginning and 245.4 MB in the end (delta: 39.8 MB). Free memory was 136.1 MB in the beginning and 126.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 84 ProgramPointsBefore, 35 ProgramPointsAfterwards, 84 TransitionsBefore, 32 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 390 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2843 CheckedPairsTotal, 55 TotalNumberOfCompositions - 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. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 128 SDtfs, 62 SDslu, 81 SDs, 0 SdLazy, 30 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 694 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...