/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 01:23:22,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 01:23:22,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 01:23:22,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 01:23:22,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 01:23:22,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 01:23:22,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 01:23:22,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 01:23:22,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 01:23:22,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 01:23:22,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 01:23:22,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 01:23:22,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 01:23:22,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 01:23:22,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 01:23:22,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 01:23:22,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 01:23:22,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 01:23:22,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 01:23:22,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 01:23:22,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 01:23:22,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 01:23:22,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 01:23:22,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 01:23:22,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 01:23:22,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 01:23:22,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 01:23:22,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 01:23:22,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 01:23:22,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 01:23:22,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 01:23:22,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 01:23:22,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 01:23:22,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 01:23:22,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 01:23:22,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 01:23:22,902 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 01:23:22,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 01:23:22,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 01:23:22,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 01:23:22,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 01:23:22,934 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 01:23:22,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 01:23:22,934 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 01:23:22,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 01:23:22,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 01:23:22,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 01:23:22,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 01:23:22,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 01:23:22,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 01:23:22,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 01:23:22,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 01:23:22,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 01:23:22,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 01:23:22,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 01:23:22,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 01:23:22,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 01:23:22,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 01:23:22,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:23:22,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 01:23:22,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 01:23:22,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 01:23:22,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 01:23:22,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 01:23:22,938 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 01:23:22,938 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 01:23:22,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 01:23:22,939 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 01:23:23,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 01:23:23,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 01:23:23,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 01:23:23,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 01:23:23,292 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 01:23:23,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-10-22 01:23:23,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfbdd93f/8352d321a4fa4a7c80d31a3f93d34c7b/FLAG903fd3c37 [2020-10-22 01:23:23,895 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 01:23:23,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-10-22 01:23:23,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfbdd93f/8352d321a4fa4a7c80d31a3f93d34c7b/FLAG903fd3c37 [2020-10-22 01:23:24,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfbdd93f/8352d321a4fa4a7c80d31a3f93d34c7b [2020-10-22 01:23:24,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 01:23:24,235 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 01:23:24,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 01:23:24,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 01:23:24,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 01:23:24,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:24,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6011d3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24, skipping insertion in model container [2020-10-22 01:23:24,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:24,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 01:23:24,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 01:23:24,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:23:24,814 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 01:23:24,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:23:24,971 INFO L208 MainTranslator]: Completed translation [2020-10-22 01:23:24,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24 WrapperNode [2020-10-22 01:23:24,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 01:23:24,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 01:23:24,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 01:23:24,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 01:23:24,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:24,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 01:23:25,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 01:23:25,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 01:23:25,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 01:23:25,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:25,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 01:23:25,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 01:23:25,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 01:23:25,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 01:23:25,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:23:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 01:23:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-22 01:23:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-22 01:23:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 01:23:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 01:23:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 01:23:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 01:23:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 01:23:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 01:23:25,142 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 01:23:26,046 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 01:23:26,046 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 01:23:26,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:23:26 BoogieIcfgContainer [2020-10-22 01:23:26,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 01:23:26,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 01:23:26,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 01:23:26,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 01:23:26,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:23:24" (1/3) ... [2020-10-22 01:23:26,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d873e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:23:26, skipping insertion in model container [2020-10-22 01:23:26,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:24" (2/3) ... [2020-10-22 01:23:26,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d873e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:23:26, skipping insertion in model container [2020-10-22 01:23:26,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:23:26" (3/3) ... [2020-10-22 01:23:26,064 INFO L111 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-10-22 01:23:26,074 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 01:23:26,075 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 01:23:26,082 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-22 01:23:26,083 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 01:23:26,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,112 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,112 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,126 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:23:26,140 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 01:23:26,158 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:23:26,158 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:23:26,158 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:23:26,158 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:23:26,158 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:23:26,159 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:23:26,159 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:23:26,159 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:23:26,172 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:23:26,172 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 68 transitions, 141 flow [2020-10-22 01:23:26,175 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 68 transitions, 141 flow [2020-10-22 01:23:26,177 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 68 transitions, 141 flow [2020-10-22 01:23:26,216 INFO L129 PetriNetUnfolder]: 6/67 cut-off events. [2020-10-22 01:23:26,216 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 01:23:26,222 INFO L80 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 6/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2020-10-22 01:23:26,224 INFO L116 LiptonReduction]: Number of co-enabled transitions 1134 [2020-10-22 01:23:27,898 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-22 01:23:28,373 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-22 01:23:28,513 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-22 01:23:28,523 INFO L131 LiptonReduction]: Checked pairs total: 3191 [2020-10-22 01:23:28,524 INFO L133 LiptonReduction]: Total number of compositions: 62 [2020-10-22 01:23:28,531 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 25 transitions, 55 flow [2020-10-22 01:23:28,544 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 82 states. [2020-10-22 01:23:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-10-22 01:23:28,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 01:23:28,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:28,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 01:23:28,554 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:28,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:28,561 INFO L82 PathProgramCache]: Analyzing trace with hash 461951413, now seen corresponding path program 1 times [2020-10-22 01:23:28,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:28,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624420971] [2020-10-22 01:23:28,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:28,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624420971] [2020-10-22 01:23:28,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:28,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:28,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1282625567] [2020-10-22 01:23:28,785 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:28,788 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:28,798 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 01:23:28,799 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:28,803 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:28,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:28,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:28,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:28,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:28,817 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 3 states. [2020-10-22 01:23:28,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:28,844 INFO L93 Difference]: Finished difference Result 82 states and 154 transitions. [2020-10-22 01:23:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:28,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-22 01:23:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:28,857 INFO L225 Difference]: With dead ends: 82 [2020-10-22 01:23:28,857 INFO L226 Difference]: Without dead ends: 73 [2020-10-22 01:23:28,859 INFO L677 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 [2020-10-22 01:23:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-22 01:23:28,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-22 01:23:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-22 01:23:28,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 133 transitions. [2020-10-22 01:23:28,899 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 133 transitions. Word has length 5 [2020-10-22 01:23:28,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:28,899 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 133 transitions. [2020-10-22 01:23:28,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:28,899 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 133 transitions. [2020-10-22 01:23:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 01:23:28,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:28,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 01:23:28,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 01:23:28,900 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:28,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:28,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1435959724, now seen corresponding path program 1 times [2020-10-22 01:23:28,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:28,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858364916] [2020-10-22 01:23:28,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:29,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858364916] [2020-10-22 01:23:29,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:29,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:29,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [194493410] [2020-10-22 01:23:29,012 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:29,013 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:29,014 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 01:23:29,014 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:29,015 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:29,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:29,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:29,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:29,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:29,019 INFO L87 Difference]: Start difference. First operand 73 states and 133 transitions. Second operand 3 states. [2020-10-22 01:23:29,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,069 INFO L93 Difference]: Finished difference Result 72 states and 122 transitions. [2020-10-22 01:23:29,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:29,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-22 01:23:29,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,071 INFO L225 Difference]: With dead ends: 72 [2020-10-22 01:23:29,071 INFO L226 Difference]: Without dead ends: 60 [2020-10-22 01:23:29,072 INFO L677 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 [2020-10-22 01:23:29,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-22 01:23:29,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-10-22 01:23:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-22 01:23:29,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 98 transitions. [2020-10-22 01:23:29,081 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 98 transitions. Word has length 6 [2020-10-22 01:23:29,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,081 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 98 transitions. [2020-10-22 01:23:29,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:29,082 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 98 transitions. [2020-10-22 01:23:29,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 01:23:29,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:29,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:29,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 01:23:29,083 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:29,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:29,083 INFO L82 PathProgramCache]: Analyzing trace with hash 907482687, now seen corresponding path program 1 times [2020-10-22 01:23:29,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:29,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194718943] [2020-10-22 01:23:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:29,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194718943] [2020-10-22 01:23:29,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:29,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:29,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1102311780] [2020-10-22 01:23:29,139 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:29,139 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:29,141 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 01:23:29,141 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:29,141 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:29,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:29,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:29,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:29,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:29,142 INFO L87 Difference]: Start difference. First operand 56 states and 98 transitions. Second operand 3 states. [2020-10-22 01:23:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,160 INFO L93 Difference]: Finished difference Result 50 states and 82 transitions. [2020-10-22 01:23:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:29,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 01:23:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,161 INFO L225 Difference]: With dead ends: 50 [2020-10-22 01:23:29,161 INFO L226 Difference]: Without dead ends: 37 [2020-10-22 01:23:29,162 INFO L677 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 [2020-10-22 01:23:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-22 01:23:29,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-22 01:23:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-22 01:23:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-10-22 01:23:29,167 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2020-10-22 01:23:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,167 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-10-22 01:23:29,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:29,167 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-10-22 01:23:29,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 01:23:29,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:29,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:29,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 01:23:29,169 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:29,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:29,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2002101761, now seen corresponding path program 1 times [2020-10-22 01:23:29,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:29,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233193001] [2020-10-22 01:23:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:29,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233193001] [2020-10-22 01:23:29,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:29,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:29,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [688258870] [2020-10-22 01:23:29,241 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:29,242 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:29,245 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-10-22 01:23:29,245 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:29,260 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:29,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:29,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:29,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:29,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:29,261 INFO L87 Difference]: Start difference. First operand 37 states and 54 transitions. Second operand 3 states. [2020-10-22 01:23:29,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,272 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2020-10-22 01:23:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:29,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-22 01:23:29,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,273 INFO L225 Difference]: With dead ends: 37 [2020-10-22 01:23:29,274 INFO L226 Difference]: Without dead ends: 31 [2020-10-22 01:23:29,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-22 01:23:29,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-22 01:23:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-22 01:23:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-22 01:23:29,278 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-10-22 01:23:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,279 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-22 01:23:29,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-22 01:23:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 01:23:29,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:29,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:29,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 01:23:29,280 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:29,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1339377771, now seen corresponding path program 2 times [2020-10-22 01:23:29,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:29,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205690811] [2020-10-22 01:23:29,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:29,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205690811] [2020-10-22 01:23:29,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:29,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:29,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1410688235] [2020-10-22 01:23:29,361 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:29,362 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:29,365 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-10-22 01:23:29,365 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:29,365 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:29,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:29,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:29,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:29,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:29,367 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 3 states. [2020-10-22 01:23:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,380 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-22 01:23:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:29,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-22 01:23:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,381 INFO L225 Difference]: With dead ends: 11 [2020-10-22 01:23:29,381 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 01:23:29,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:29,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 01:23:29,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 01:23:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 01:23:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 01:23:29,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-22 01:23:29,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,382 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 01:23:29,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:29,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 01:23:29,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 01:23:29,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 01:23:29,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:23:29 BasicIcfg [2020-10-22 01:23:29,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 01:23:29,389 INFO L168 Benchmark]: Toolchain (without parser) took 5160.22 ms. Allocated memory was 138.4 MB in the beginning and 295.2 MB in the end (delta: 156.8 MB). Free memory was 100.0 MB in the beginning and 253.6 MB in the end (delta: -153.6 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,390 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.64 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.1 MB in the beginning and 157.7 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.80 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 154.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,393 INFO L168 Benchmark]: Boogie Preprocessor took 32.26 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 153.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,393 INFO L168 Benchmark]: RCFGBuilder took 987.56 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 153.5 MB in the beginning and 198.9 MB in the end (delta: -45.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,394 INFO L168 Benchmark]: TraceAbstraction took 3334.96 ms. Allocated memory was 232.8 MB in the beginning and 295.2 MB in the end (delta: 62.4 MB). Free memory was 198.9 MB in the beginning and 253.6 MB in the end (delta: -54.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.64 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.1 MB in the beginning and 157.7 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.80 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 154.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.26 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 153.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 987.56 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 153.5 MB in the beginning and 198.9 MB in the end (delta: -45.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3334.96 ms. Allocated memory was 232.8 MB in the beginning and 295.2 MB in the end (delta: 62.4 MB). Free memory was 198.9 MB in the beginning and 253.6 MB in the end (delta: -54.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 680 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 84 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 66 PlacesBefore, 23 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 3191 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: 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, 63 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 82 SDtfs, 41 SDslu, 33 SDs, 0 SdLazy, 24 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 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...