/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 20:30:44,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 20:30:44,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 20:30:44,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 20:30:44,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 20:30:44,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 20:30:44,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 20:30:44,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 20:30:44,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 20:30:44,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 20:30:44,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 20:30:44,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 20:30:44,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 20:30:44,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 20:30:44,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 20:30:44,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 20:30:44,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 20:30:44,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 20:30:44,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 20:30:44,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 20:30:44,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 20:30:44,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 20:30:44,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 20:30:44,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 20:30:44,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-11 20:30:44,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 20:30:44,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 20:30:44,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 20:30:44,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 20:30:44,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 20:30:44,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 20:30:44,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 20:30:44,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 20:30:44,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 20:30:44,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 20:30:44,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 20:30:44,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-11 20:30:44,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 20:30:44,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 20:30:44,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 20:30:44,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 20:30:44,428 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 20:30:44,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 20:30:44,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 20:30:44,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 20:30:44,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 20:30:44,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 20:30:44,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 20:30:44,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 20:30:44,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 20:30:44,433 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 20:30:44,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 20:30:44,434 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 20:30:44,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 20:30:44,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 20:30:44,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 20:30:44,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 20:30:44,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 20:30:44,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 20:30:44,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 20:30:44,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 20:30:44,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 20:30:44,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 20:30:44,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 20:30:44,438 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 20:30:44,438 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 20:30:44,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 20:30:44,438 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 20:30:44,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 20:30:44,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 20:30:44,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 20:30:44,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 20:30:44,961 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 20:30:44,962 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-09-11 20:30:45,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84ae132d0/31ddb1a800cd41dca443dcbb7485f4b9/FLAG3334e95a0 [2020-09-11 20:30:45,666 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 20:30:45,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-09-11 20:30:45,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84ae132d0/31ddb1a800cd41dca443dcbb7485f4b9/FLAG3334e95a0 [2020-09-11 20:30:45,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84ae132d0/31ddb1a800cd41dca443dcbb7485f4b9 [2020-09-11 20:30:45,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 20:30:45,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 20:30:45,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 20:30:45,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 20:30:45,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 20:30:45,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:30:45" (1/1) ... [2020-09-11 20:30:45,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6fcb00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:45, skipping insertion in model container [2020-09-11 20:30:45,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:30:45" (1/1) ... [2020-09-11 20:30:45,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 20:30:46,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 20:30:46,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:30:46,624 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 20:30:46,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:30:46,779 INFO L208 MainTranslator]: Completed translation [2020-09-11 20:30:46,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46 WrapperNode [2020-09-11 20:30:46,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 20:30:46,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 20:30:46,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 20:30:46,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 20:30:46,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 20:30:46,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 20:30:46,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 20:30:46,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 20:30:46,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... [2020-09-11 20:30:46,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 20:30:46,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 20:30:46,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 20:30:46,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 20:30:46,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 20:30:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-11 20:30:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-11 20:30:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-11 20:30:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 20:30:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 20:30:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 20:30:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-11 20:30:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 20:30:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 20:30:46,972 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 20:30:47,981 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 20:30:47,981 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-11 20:30:47,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:30:47 BoogieIcfgContainer [2020-09-11 20:30:47,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 20:30:47,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 20:30:47,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 20:30:47,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 20:30:47,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 08:30:45" (1/3) ... [2020-09-11 20:30:47,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d257960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:30:47, skipping insertion in model container [2020-09-11 20:30:47,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:30:46" (2/3) ... [2020-09-11 20:30:47,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d257960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:30:47, skipping insertion in model container [2020-09-11 20:30:47,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:30:47" (3/3) ... [2020-09-11 20:30:47,997 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-09-11 20:30:48,009 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 20:30:48,010 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 20:30:48,020 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-11 20:30:48,021 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 20:30:48,048 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,049 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,050 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,050 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,050 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,050 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,050 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,051 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,051 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,052 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,052 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,052 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,053 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,053 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,053 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,054 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,054 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,054 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,054 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,055 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,055 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,055 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,055 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,055 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,056 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,060 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,060 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,061 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:30:48,090 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 20:30:48,116 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 20:30:48,116 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 20:30:48,117 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 20:30:48,117 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 20:30:48,117 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 20:30:48,117 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 20:30:48,117 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 20:30:48,117 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 20:30:48,135 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 54 transitions, 113 flow [2020-09-11 20:30:48,137 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 113 flow [2020-09-11 20:30:48,176 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2020-09-11 20:30:48,176 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 20:30:48,182 INFO L80 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 4/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 38. Up to 3 conditions per place. [2020-09-11 20:30:48,184 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 113 flow [2020-09-11 20:30:48,198 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2020-09-11 20:30:48,198 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 20:30:48,199 INFO L80 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 4/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 38. Up to 3 conditions per place. [2020-09-11 20:30:48,200 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 704 [2020-09-11 20:30:48,202 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 20:30:49,558 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-09-11 20:30:49,638 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2154 [2020-09-11 20:30:49,639 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2020-09-11 20:30:49,643 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 22 transitions, 49 flow [2020-09-11 20:30:49,655 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 82 states. [2020-09-11 20:30:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-09-11 20:30:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-11 20:30:49,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:49,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-11 20:30:49,666 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:49,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:49,674 INFO L82 PathProgramCache]: Analyzing trace with hash 429266084, now seen corresponding path program 1 times [2020-09-11 20:30:49,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:49,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469986091] [2020-09-11 20:30:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:49,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469986091] [2020-09-11 20:30:49,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:49,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:30:49,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1042189474] [2020-09-11 20:30:49,909 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:49,913 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:49,927 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-11 20:30:49,927 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:49,929 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:49,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:49,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:49,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:49,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:49,947 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 3 states. [2020-09-11 20:30:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:49,969 INFO L93 Difference]: Finished difference Result 82 states and 154 transitions. [2020-09-11 20:30:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:49,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-09-11 20:30:49,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:49,983 INFO L225 Difference]: With dead ends: 82 [2020-09-11 20:30:49,983 INFO L226 Difference]: Without dead ends: 73 [2020-09-11 20:30:49,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-11 20:30:50,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-11 20:30:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-11 20:30:50,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 133 transitions. [2020-09-11 20:30:50,031 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 133 transitions. Word has length 5 [2020-09-11 20:30:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:50,031 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 133 transitions. [2020-09-11 20:30:50,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:50,031 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 133 transitions. [2020-09-11 20:30:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-11 20:30:50,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:50,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-11 20:30:50,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 20:30:50,033 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:50,033 INFO L82 PathProgramCache]: Analyzing trace with hash 422942901, now seen corresponding path program 1 times [2020-09-11 20:30:50,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:50,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102650521] [2020-09-11 20:30:50,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:50,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:50,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102650521] [2020-09-11 20:30:50,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:50,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:30:50,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1428606739] [2020-09-11 20:30:50,108 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:50,109 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:50,110 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-11 20:30:50,111 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:50,111 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:50,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:50,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:50,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:50,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:50,113 INFO L87 Difference]: Start difference. First operand 73 states and 133 transitions. Second operand 3 states. [2020-09-11 20:30:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:50,145 INFO L93 Difference]: Finished difference Result 79 states and 135 transitions. [2020-09-11 20:30:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:50,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-11 20:30:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:50,147 INFO L225 Difference]: With dead ends: 79 [2020-09-11 20:30:50,147 INFO L226 Difference]: Without dead ends: 67 [2020-09-11 20:30:50,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-11 20:30:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-09-11 20:30:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-11 20:30:50,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 108 transitions. [2020-09-11 20:30:50,159 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 108 transitions. Word has length 6 [2020-09-11 20:30:50,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:50,160 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 108 transitions. [2020-09-11 20:30:50,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:50,160 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 108 transitions. [2020-09-11 20:30:50,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 20:30:50,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:50,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:50,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 20:30:50,162 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:50,162 INFO L82 PathProgramCache]: Analyzing trace with hash -2140784243, now seen corresponding path program 1 times [2020-09-11 20:30:50,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:50,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223604259] [2020-09-11 20:30:50,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:50,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223604259] [2020-09-11 20:30:50,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:50,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:30:50,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1113884191] [2020-09-11 20:30:50,260 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:50,261 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:50,263 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-11 20:30:50,263 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:50,263 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:50,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:50,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:50,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:50,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:50,264 INFO L87 Difference]: Start difference. First operand 61 states and 108 transitions. Second operand 3 states. [2020-09-11 20:30:50,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:50,283 INFO L93 Difference]: Finished difference Result 57 states and 95 transitions. [2020-09-11 20:30:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:50,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 20:30:50,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:50,284 INFO L225 Difference]: With dead ends: 57 [2020-09-11 20:30:50,284 INFO L226 Difference]: Without dead ends: 39 [2020-09-11 20:30:50,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-11 20:30:50,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-11 20:30:50,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-11 20:30:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. [2020-09-11 20:30:50,290 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 8 [2020-09-11 20:30:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:50,291 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. [2020-09-11 20:30:50,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2020-09-11 20:30:50,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 20:30:50,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:50,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:50,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 20:30:50,293 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:50,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:50,293 INFO L82 PathProgramCache]: Analyzing trace with hash 253860032, now seen corresponding path program 1 times [2020-09-11 20:30:50,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:50,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228244863] [2020-09-11 20:30:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:50,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228244863] [2020-09-11 20:30:50,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:50,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 20:30:50,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [46381886] [2020-09-11 20:30:50,414 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:50,415 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:50,417 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-09-11 20:30:50,418 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:50,450 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:50,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 20:30:50,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:50,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 20:30:50,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-11 20:30:50,452 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand 6 states. [2020-09-11 20:30:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:50,558 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2020-09-11 20:30:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 20:30:50,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-09-11 20:30:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:50,559 INFO L225 Difference]: With dead ends: 33 [2020-09-11 20:30:50,559 INFO L226 Difference]: Without dead ends: 27 [2020-09-11 20:30:50,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 20:30:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-11 20:30:50,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-09-11 20:30:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-11 20:30:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2020-09-11 20:30:50,564 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 11 [2020-09-11 20:30:50,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:50,564 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-09-11 20:30:50,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 20:30:50,564 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-09-11 20:30:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 20:30:50,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:30:50,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:30:50,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 20:30:50,565 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:30:50,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:30:50,566 INFO L82 PathProgramCache]: Analyzing trace with hash -133203992, now seen corresponding path program 1 times [2020-09-11 20:30:50,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:30:50,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002094413] [2020-09-11 20:30:50,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:30:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:30:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:30:50,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002094413] [2020-09-11 20:30:50,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:30:50,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 20:30:50,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1877796458] [2020-09-11 20:30:50,630 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:30:50,631 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:30:50,633 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-09-11 20:30:50,633 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:30:50,647 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:30:50,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:30:50,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:30:50,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:30:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:50,648 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 3 states. [2020-09-11 20:30:50,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:30:50,652 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-09-11 20:30:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:30:50,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 20:30:50,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:30:50,653 INFO L225 Difference]: With dead ends: 10 [2020-09-11 20:30:50,653 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 20:30:50,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:30:50,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 20:30:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 20:30:50,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 20:30:50,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 20:30:50,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-09-11 20:30:50,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:30:50,655 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 20:30:50,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:30:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 20:30:50,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 20:30:50,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 20:30:50,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 08:30:50 BasicIcfg [2020-09-11 20:30:50,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 20:30:50,663 INFO L168 Benchmark]: Toolchain (without parser) took 4738.26 ms. Allocated memory was 140.0 MB in the beginning and 248.5 MB in the end (delta: 108.5 MB). Free memory was 101.6 MB in the beginning and 173.6 MB in the end (delta: -72.0 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:50,664 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 20:30:50,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 851.21 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 101.0 MB in the beginning and 160.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:50,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.59 ms. Allocated memory is still 201.9 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:50,666 INFO L168 Benchmark]: Boogie Preprocessor took 32.28 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:50,667 INFO L168 Benchmark]: RCFGBuilder took 1108.42 ms. Allocated memory was 201.9 MB in the beginning and 236.5 MB in the end (delta: 34.6 MB). Free memory was 156.9 MB in the beginning and 186.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:50,668 INFO L168 Benchmark]: TraceAbstraction took 2671.98 ms. Allocated memory was 236.5 MB in the beginning and 248.5 MB in the end (delta: 12.1 MB). Free memory was 186.0 MB in the beginning and 173.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-09-11 20:30:50,673 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 851.21 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 101.0 MB in the beginning and 160.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.59 ms. Allocated memory is still 201.9 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.28 ms. Allocated memory is still 201.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1108.42 ms. Allocated memory was 201.9 MB in the beginning and 236.5 MB in the end (delta: 34.6 MB). Free memory was 156.9 MB in the beginning and 186.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2671.98 ms. Allocated memory was 236.5 MB in the beginning and 248.5 MB in the end (delta: 12.1 MB). Free memory was 186.0 MB in the beginning and 173.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 54 ProgramPointsBefore, 23 ProgramPointsAfterwards, 54 TransitionsBefore, 22 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 367 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2154 CheckedPairsTotal, 36 TotalNumberOfCompositions - 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: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 77 SDtfs, 65 SDslu, 38 SDs, 0 SdLazy, 43 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s 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, 6 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, 888 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...