/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:16:06,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:16:06,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:16:06,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:16:06,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:16:06,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:16:06,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:16:06,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:16:06,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:16:06,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:16:06,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:16:06,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:16:06,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:16:06,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:16:06,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:16:06,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:16:06,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:16:06,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:16:06,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:16:06,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:16:06,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:16:06,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:16:06,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:16:06,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:16:06,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:16:06,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:16:06,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:16:06,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:16:06,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:16:06,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:16:06,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:16:06,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:16:06,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:16:06,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:16:06,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:16:06,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:16:06,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:16:06,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:16:06,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:16:06,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:16:06,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:16:06,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 16:16:06,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:16:06,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:16:06,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:16:06,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:16:06,615 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:16:06,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:16:06,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:16:06,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:16:06,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:16:06,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:16:06,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:16:06,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:16:06,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:16:06,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:16:06,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:16:06,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:16:06,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:16:06,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:16:06,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:16:06,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:16:06,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:16:06,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:16:06,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:16:06,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:16:06,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:16:06,621 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:16:06,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:16:06,622 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:16:06,622 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:16:06,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:16:06,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:16:07,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:16:07,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:16:07,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:16:07,045 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:16:07,046 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:16:07,047 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-04-18 16:16:07,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffbb02211/7818184e483242ba99cf49e06991ee70/FLAG21473132a [2020-04-18 16:16:07,645 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:16:07,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-04-18 16:16:07,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffbb02211/7818184e483242ba99cf49e06991ee70/FLAG21473132a [2020-04-18 16:16:07,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffbb02211/7818184e483242ba99cf49e06991ee70 [2020-04-18 16:16:07,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:16:07,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:16:07,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:16:07,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:16:07,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:16:07,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:16:07" (1/1) ... [2020-04-18 16:16:07,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fead060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:07, skipping insertion in model container [2020-04-18 16:16:07,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:16:07" (1/1) ... [2020-04-18 16:16:07,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:16:08,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:16:08,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:16:08,603 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:16:08,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:16:08,761 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:16:08,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08 WrapperNode [2020-04-18 16:16:08,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:16:08,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:16:08,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:16:08,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:16:08,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:16:08,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:16:08,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:16:08,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:16:08,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (1/1) ... [2020-04-18 16:16:08,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:16:08,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:16:08,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:16:08,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:16:08,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (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 [2020-04-18 16:16:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:16:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 16:16:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 16:16:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:16:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:16:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:16:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:16:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:16:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:16:08,991 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:16:10,081 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:16:10,082 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 16:16:10,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:16:10 BoogieIcfgContainer [2020-04-18 16:16:10,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:16:10,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:16:10,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:16:10,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:16:10,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:16:07" (1/3) ... [2020-04-18 16:16:10,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c1e2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:16:10, skipping insertion in model container [2020-04-18 16:16:10,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:08" (2/3) ... [2020-04-18 16:16:10,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c1e2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:16:10, skipping insertion in model container [2020-04-18 16:16:10,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:16:10" (3/3) ... [2020-04-18 16:16:10,099 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-04-18 16:16:10,110 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:16:10,111 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:16:10,119 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 16:16:10,120 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:16:10,150 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,150 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,151 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,151 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,151 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,151 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,152 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,152 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,152 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,152 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,152 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,153 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,153 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,153 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,153 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,153 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,154 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,154 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,154 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,154 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,155 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,155 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,156 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,156 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,156 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,156 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,156 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,157 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,157 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,157 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,157 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,161 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,161 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,161 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,161 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,163 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,163 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,164 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,164 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,164 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:10,180 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 16:16:10,201 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:16:10,201 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:16:10,202 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:16:10,202 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:16:10,202 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:16:10,202 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:16:10,202 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:16:10,202 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:16:10,215 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 54 transitions, 113 flow [2020-04-18 16:16:10,241 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 330 states. [2020-04-18 16:16:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states. [2020-04-18 16:16:10,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 16:16:10,252 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:16:10,254 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:16:10,254 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:16:10,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:10,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1425769677, now seen corresponding path program 1 times [2020-04-18 16:16:10,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:16:10,269 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1030816079] [2020-04-18 16:16:10,285 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:10,300 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-04-18 16:16:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-04-18 16:16:10,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 16:16:10,303 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:16:10,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:10,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1425769677, now seen corresponding path program 2 times [2020-04-18 16:16:10,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:10,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220773320] [2020-04-18 16:16:10,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:10,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220773320] [2020-04-18 16:16:10,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:10,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:16:10,543 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:10,545 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:10,552 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-04-18 16:16:10,553 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:10,564 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:16:10,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:10,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:10,573 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2020-04-18 16:16:10,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:10,582 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-04-18 16:16:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-04-18 16:16:10,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:10,584 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1030816079] [2020-04-18 16:16:10,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:16:10,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:16:10,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1030816079] [2020-04-18 16:16:10,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:16:10,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:16:10,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:10,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:10,597 INFO L87 Difference]: Start difference. First operand 330 states. Second operand 3 states. [2020-04-18 16:16:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:10,637 INFO L93 Difference]: Finished difference Result 330 states and 624 transitions. [2020-04-18 16:16:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:16:10,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-04-18 16:16:10,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:16:10,675 INFO L225 Difference]: With dead ends: 330 [2020-04-18 16:16:10,675 INFO L226 Difference]: Without dead ends: 290 [2020-04-18 16:16:10,682 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-04-18 16:16:10,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2020-04-18 16:16:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-04-18 16:16:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 540 transitions. [2020-04-18 16:16:10,756 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 540 transitions. Word has length 21 [2020-04-18 16:16:10,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:16:10,757 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 540 transitions. [2020-04-18 16:16:10,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:16:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 540 transitions. [2020-04-18 16:16:10,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 16:16:10,759 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:16:10,759 INFO L425 BasicCegarLoop]: 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] [2020-04-18 16:16:10,759 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:16:10,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:10,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1956425183, now seen corresponding path program 1 times [2020-04-18 16:16:10,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:16:10,760 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [456634763] [2020-04-18 16:16:10,761 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:10,762 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions. [2020-04-18 16:16:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 16:16:10,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 16:16:10,764 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:16:10,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:10,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1956425183, now seen corresponding path program 2 times [2020-04-18 16:16:10,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:10,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544958832] [2020-04-18 16:16:10,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:10,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544958832] [2020-04-18 16:16:10,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:10,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:16:10,857 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:10,859 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:10,862 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions. [2020-04-18 16:16:10,862 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:10,874 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:16:10,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:10,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:10,875 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-04-18 16:16:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:10,882 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-04-18 16:16:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-04-18 16:16:10,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:10,886 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [456634763] [2020-04-18 16:16:10,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:16:10,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:16:10,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [456634763] [2020-04-18 16:16:10,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:16:10,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:16:10,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:10,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:10,892 INFO L87 Difference]: Start difference. First operand 290 states and 540 transitions. Second operand 3 states. [2020-04-18 16:16:10,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:10,920 INFO L93 Difference]: Finished difference Result 311 states and 563 transitions. [2020-04-18 16:16:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:16:10,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-04-18 16:16:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:16:10,925 INFO L225 Difference]: With dead ends: 311 [2020-04-18 16:16:10,926 INFO L226 Difference]: Without dead ends: 275 [2020-04-18 16:16:10,929 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-04-18 16:16:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 245. [2020-04-18 16:16:10,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-04-18 16:16:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 449 transitions. [2020-04-18 16:16:10,953 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 449 transitions. Word has length 25 [2020-04-18 16:16:10,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:16:10,954 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 449 transitions. [2020-04-18 16:16:10,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:16:10,954 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 449 transitions. [2020-04-18 16:16:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 16:16:10,955 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:16:10,955 INFO L425 BasicCegarLoop]: 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] [2020-04-18 16:16:10,956 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:16:10,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:10,956 INFO L82 PathProgramCache]: Analyzing trace with hash 285892168, now seen corresponding path program 1 times [2020-04-18 16:16:10,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:16:10,957 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1560537159] [2020-04-18 16:16:10,958 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:10,959 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions. [2020-04-18 16:16:10,959 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 16:16:10,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 16:16:10,960 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:16:10,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:10,961 INFO L82 PathProgramCache]: Analyzing trace with hash 285892168, now seen corresponding path program 2 times [2020-04-18 16:16:10,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:10,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585167345] [2020-04-18 16:16:10,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:11,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585167345] [2020-04-18 16:16:11,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:11,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:16:11,053 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:11,055 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:11,059 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 25 transitions. [2020-04-18 16:16:11,059 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:11,075 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:16:11,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:11,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:11,076 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-04-18 16:16:11,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:11,078 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-04-18 16:16:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-04-18 16:16:11,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:11,081 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1560537159] [2020-04-18 16:16:11,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:16:11,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:16:11,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1560537159] [2020-04-18 16:16:11,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:16:11,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:16:11,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:11,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:11,083 INFO L87 Difference]: Start difference. First operand 245 states and 449 transitions. Second operand 3 states. [2020-04-18 16:16:11,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:11,112 INFO L93 Difference]: Finished difference Result 233 states and 411 transitions. [2020-04-18 16:16:11,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:16:11,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-04-18 16:16:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:16:11,116 INFO L225 Difference]: With dead ends: 233 [2020-04-18 16:16:11,116 INFO L226 Difference]: Without dead ends: 143 [2020-04-18 16:16:11,117 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:11,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-04-18 16:16:11,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-04-18 16:16:11,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-04-18 16:16:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 233 transitions. [2020-04-18 16:16:11,128 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 233 transitions. Word has length 25 [2020-04-18 16:16:11,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:16:11,129 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 233 transitions. [2020-04-18 16:16:11,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:16:11,129 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 233 transitions. [2020-04-18 16:16:11,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 16:16:11,130 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:16:11,131 INFO L425 BasicCegarLoop]: 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] [2020-04-18 16:16:11,131 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:16:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:11,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1623503935, now seen corresponding path program 1 times [2020-04-18 16:16:11,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:16:11,132 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1702219725] [2020-04-18 16:16:11,134 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:11,137 INFO L259 McrAutomatonBuilder]: Finished intersection with 114 states and 193 transitions. [2020-04-18 16:16:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-04-18 16:16:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 16:16:11,141 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:16:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:11,141 INFO L82 PathProgramCache]: Analyzing trace with hash 38777023, now seen corresponding path program 2 times [2020-04-18 16:16:11,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:11,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201627780] [2020-04-18 16:16:11,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:11,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:11,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201627780] [2020-04-18 16:16:11,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:11,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:16:11,209 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:11,213 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:11,226 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 100 transitions. [2020-04-18 16:16:11,226 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:11,242 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:16:11,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:11,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:11,244 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 3 states. [2020-04-18 16:16:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:11,253 INFO L93 Difference]: Finished difference Result 117 states and 195 transitions. [2020-04-18 16:16:11,253 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 195 transitions. [2020-04-18 16:16:11,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 16:16:11,255 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:16:11,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:11,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1623503935, now seen corresponding path program 3 times [2020-04-18 16:16:11,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:11,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694368926] [2020-04-18 16:16:11,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:11,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:11,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694368926] [2020-04-18 16:16:11,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:11,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 16:16:11,467 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:11,501 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:11,508 INFO L259 McrAutomatonBuilder]: Finished intersection with 52 states and 68 transitions. [2020-04-18 16:16:11,509 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:11,579 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:16:11,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:16:11,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:16:11,580 INFO L87 Difference]: Start difference. First operand 117 states and 195 transitions. Second operand 9 states. [2020-04-18 16:16:11,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:11,807 INFO L93 Difference]: Finished difference Result 120 states and 200 transitions. [2020-04-18 16:16:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 200 transitions. [2020-04-18 16:16:11,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:11,810 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1702219725] [2020-04-18 16:16:11,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:16:11,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:16:11,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1702219725] [2020-04-18 16:16:11,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 16:16:11,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:16:11,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:16:11,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-04-18 16:16:11,812 INFO L87 Difference]: Start difference. First operand 143 states and 233 transitions. Second operand 9 states. [2020-04-18 16:16:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:11,901 INFO L93 Difference]: Finished difference Result 84 states and 134 transitions. [2020-04-18 16:16:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 16:16:11,902 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-04-18 16:16:11,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:16:11,903 INFO L225 Difference]: With dead ends: 84 [2020-04-18 16:16:11,903 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 16:16:11,903 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-04-18 16:16:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 16:16:11,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 16:16:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 16:16:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 16:16:11,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-04-18 16:16:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:16:11,905 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 16:16:11,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 16:16:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 16:16:11,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:11,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:16:11 BasicIcfg [2020-04-18 16:16:11,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:16:11,914 INFO L168 Benchmark]: Toolchain (without parser) took 3963.48 ms. Allocated memory was 137.9 MB in the beginning and 248.0 MB in the end (delta: 110.1 MB). Free memory was 101.6 MB in the beginning and 168.1 MB in the end (delta: -66.6 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:11,915 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 16:16:11,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.78 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 99.4 MB in the beginning and 157.7 MB in the end (delta: -58.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:11,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.06 ms. Allocated memory is still 199.8 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:11,917 INFO L168 Benchmark]: Boogie Preprocessor took 62.22 ms. Allocated memory is still 199.8 MB. Free memory was 155.7 MB in the beginning and 153.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:11,918 INFO L168 Benchmark]: RCFGBuilder took 1162.63 ms. Allocated memory was 199.8 MB in the beginning and 232.3 MB in the end (delta: 32.5 MB). Free memory was 153.7 MB in the beginning and 182.9 MB in the end (delta: -29.1 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:11,919 INFO L168 Benchmark]: TraceAbstraction took 1821.34 ms. Allocated memory was 232.3 MB in the beginning and 248.0 MB in the end (delta: 15.7 MB). Free memory was 182.9 MB in the beginning and 168.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:11,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.78 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 99.4 MB in the beginning and 157.7 MB in the end (delta: -58.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 99.06 ms. Allocated memory is still 199.8 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.22 ms. Allocated memory is still 199.8 MB. Free memory was 155.7 MB in the beginning and 153.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1162.63 ms. Allocated memory was 199.8 MB in the beginning and 232.3 MB in the end (delta: 32.5 MB). Free memory was 153.7 MB in the beginning and 182.9 MB in the end (delta: -29.1 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1821.34 ms. Allocated memory was 232.3 MB in the beginning and 248.0 MB in the end (delta: 15.7 MB). Free memory was 182.9 MB in the beginning and 168.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 711]: 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 2 procedures, 51 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 205 SDtfs, 184 SDslu, 181 SDs, 0 SdLazy, 55 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred 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, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...