/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/20_lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 01:23:22,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 01:23:22,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 01:23:23,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 01:23:23,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 01:23:23,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 01:23:23,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 01:23:23,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 01:23:23,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 01:23:23,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 01:23:23,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 01:23:23,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 01:23:23,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 01:23:23,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 01:23:23,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 01:23:23,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 01:23:23,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 01:23:23,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 01:23:23,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 01:23:23,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 01:23:23,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 01:23:23,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 01:23:23,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 01:23:23,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 01:23:23,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 01:23:23,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 01:23:23,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 01:23:23,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 01:23:23,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 01:23:23,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 01:23:23,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 01:23:23,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 01:23:23,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 01:23:23,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 01:23:23,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 01:23:23,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 01:23:23,101 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 01:23:23,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 01:23:23,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 01:23:23,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 01:23:23,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 01:23:23,140 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 01:23:23,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 01:23:23,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 01:23:23,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 01:23:23,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 01:23:23,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 01:23:23,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 01:23:23,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 01:23:23,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 01:23:23,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 01:23:23,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 01:23:23,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 01:23:23,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 01:23:23,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 01:23:23,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 01:23:23,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 01:23:23,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 01:23:23,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:23:23,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 01:23:23,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 01:23:23,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 01:23:23,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 01:23:23,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 01:23:23,146 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 01:23:23,146 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 01:23:23,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 01:23:23,146 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 01:23:23,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 01:23:23,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 01:23:23,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 01:23:23,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 01:23:23,531 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 01:23:23,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/20_lamport.i [2020-10-22 01:23:23,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4449bc634/531254fbda76471f9e42bc80690d1d55/FLAG53740de38 [2020-10-22 01:23:24,201 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 01:23:24,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/20_lamport.i [2020-10-22 01:23:24,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4449bc634/531254fbda76471f9e42bc80690d1d55/FLAG53740de38 [2020-10-22 01:23:24,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4449bc634/531254fbda76471f9e42bc80690d1d55 [2020-10-22 01:23:24,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 01:23:24,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 01:23:24,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 01:23:24,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 01:23:24,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 01:23:24,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:24,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f51c5a 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 01:23:24,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:23:24" (1/1) ... [2020-10-22 01:23:24,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 01:23:24,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 01:23:24,932 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 01:23:25,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:23:25,102 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 01:23:25,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 01:23:25,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:23:25,269 INFO L208 MainTranslator]: Completed translation [2020-10-22 01:23:25,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25 WrapperNode [2020-10-22 01:23:25,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 01:23:25,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 01:23:25,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 01:23:25,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 01:23:25,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 01:23:25,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 01:23:25,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 01:23:25,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 01:23:25,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (1/1) ... [2020-10-22 01:23:25,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 01:23:25,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 01:23:25,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 01:23:25,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 01:23:25,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (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 01:23:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-22 01:23:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-22 01:23:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 01:23:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 01:23:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 01:23:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 01:23:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 01:23:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 01:23:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 01:23:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 01:23:25,484 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 01:23:25,937 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 01:23:25,937 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-22 01:23:25,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:23:25 BoogieIcfgContainer [2020-10-22 01:23:25,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 01:23:25,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 01:23:25,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 01:23:25,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 01:23:25,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:23:24" (1/3) ... [2020-10-22 01:23:25,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512b1e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:23:25, skipping insertion in model container [2020-10-22 01:23:25,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:25" (2/3) ... [2020-10-22 01:23:25,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512b1e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:23:25, skipping insertion in model container [2020-10-22 01:23:25,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:23:25" (3/3) ... [2020-10-22 01:23:25,950 INFO L111 eAbstractionObserver]: Analyzing ICFG 20_lamport.i [2020-10-22 01:23:25,963 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 01:23:25,963 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 01:23:25,971 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-22 01:23:25,972 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 01:23:26,001 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,002 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:26,023 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:23:26,035 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 01:23:26,053 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:23:26,053 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:23:26,053 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:23:26,053 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:23:26,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:23:26,054 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:23:26,054 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:23:26,054 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:23:26,070 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:23:26,071 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 118 transitions, 241 flow [2020-10-22 01:23:26,073 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 118 transitions, 241 flow [2020-10-22 01:23:26,075 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 118 transitions, 241 flow [2020-10-22 01:23:26,129 INFO L129 PetriNetUnfolder]: 26/117 cut-off events. [2020-10-22 01:23:26,129 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 01:23:26,139 INFO L80 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 117 events. 26/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 256 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 100. Up to 5 conditions per place. [2020-10-22 01:23:26,146 INFO L116 LiptonReduction]: Number of co-enabled transitions 4950 [2020-10-22 01:23:27,304 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-22 01:23:27,584 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-22 01:23:27,703 INFO L131 LiptonReduction]: Checked pairs total: 14705 [2020-10-22 01:23:27,704 INFO L133 LiptonReduction]: Total number of compositions: 81 [2020-10-22 01:23:27,711 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 62 transitions, 129 flow [2020-10-22 01:23:27,741 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 442 states. [2020-10-22 01:23:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states. [2020-10-22 01:23:27,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 01:23:27,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:27,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 01:23:27,752 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:27,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:27,758 INFO L82 PathProgramCache]: Analyzing trace with hash 15375525, now seen corresponding path program 1 times [2020-10-22 01:23:27,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:27,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360044053] [2020-10-22 01:23:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:27,936 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 01:23:27,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360044053] [2020-10-22 01:23:27,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:27,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:27,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2051986027] [2020-10-22 01:23:27,940 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:27,942 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:27,956 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 01:23:27,956 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:27,961 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:27,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 01:23:27,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:27,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 01:23:27,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 01:23:27,977 INFO L87 Difference]: Start difference. First operand 442 states. Second operand 2 states. [2020-10-22 01:23:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:28,006 INFO L93 Difference]: Finished difference Result 442 states and 1092 transitions. [2020-10-22 01:23:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 01:23:28,008 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-22 01:23:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:28,027 INFO L225 Difference]: With dead ends: 442 [2020-10-22 01:23:28,027 INFO L226 Difference]: Without dead ends: 427 [2020-10-22 01:23:28,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 01:23:28,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-22 01:23:28,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2020-10-22 01:23:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-22 01:23:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1062 transitions. [2020-10-22 01:23:28,145 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1062 transitions. Word has length 4 [2020-10-22 01:23:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:28,146 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1062 transitions. [2020-10-22 01:23:28,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 01:23:28,146 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1062 transitions. [2020-10-22 01:23:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:23:28,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:28,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:28,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 01:23:28,149 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:28,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:28,149 INFO L82 PathProgramCache]: Analyzing trace with hash -781816989, now seen corresponding path program 1 times [2020-10-22 01:23:28,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:28,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91572796] [2020-10-22 01:23:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:28,235 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 01:23:28,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91572796] [2020-10-22 01:23:28,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:28,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:28,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1980850373] [2020-10-22 01:23:28,236 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:28,237 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:28,238 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 01:23:28,239 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:28,239 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:28,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:28,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:28,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:28,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:28,242 INFO L87 Difference]: Start difference. First operand 427 states and 1062 transitions. Second operand 3 states. [2020-10-22 01:23:28,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:28,283 INFO L93 Difference]: Finished difference Result 410 states and 1005 transitions. [2020-10-22 01:23:28,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:28,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 01:23:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:28,288 INFO L225 Difference]: With dead ends: 410 [2020-10-22 01:23:28,289 INFO L226 Difference]: Without dead ends: 362 [2020-10-22 01:23:28,290 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 01:23:28,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-10-22 01:23:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 354. [2020-10-22 01:23:28,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-10-22 01:23:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 885 transitions. [2020-10-22 01:23:28,330 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 885 transitions. Word has length 10 [2020-10-22 01:23:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:28,333 INFO L481 AbstractCegarLoop]: Abstraction has 354 states and 885 transitions. [2020-10-22 01:23:28,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 885 transitions. [2020-10-22 01:23:28,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:23:28,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:28,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:28,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 01:23:28,335 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:28,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:28,335 INFO L82 PathProgramCache]: Analyzing trace with hash 383477778, now seen corresponding path program 1 times [2020-10-22 01:23:28,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:28,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986935527] [2020-10-22 01:23:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:28,429 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 01:23:28,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986935527] [2020-10-22 01:23:28,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:28,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:28,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [420291176] [2020-10-22 01:23:28,431 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:28,432 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:28,432 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 01:23:28,432 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:28,433 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:28,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:28,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:28,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:28,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:28,434 INFO L87 Difference]: Start difference. First operand 354 states and 885 transitions. Second operand 3 states. [2020-10-22 01:23:28,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:28,461 INFO L93 Difference]: Finished difference Result 340 states and 845 transitions. [2020-10-22 01:23:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:28,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 01:23:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:28,464 INFO L225 Difference]: With dead ends: 340 [2020-10-22 01:23:28,465 INFO L226 Difference]: Without dead ends: 275 [2020-10-22 01:23:28,465 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 01:23:28,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-22 01:23:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-10-22 01:23:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-22 01:23:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 697 transitions. [2020-10-22 01:23:28,477 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 697 transitions. Word has length 10 [2020-10-22 01:23:28,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:28,477 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 697 transitions. [2020-10-22 01:23:28,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:28,478 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 697 transitions. [2020-10-22 01:23:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 01:23:28,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:28,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:28,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 01:23:28,481 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:28,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:28,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1048668290, now seen corresponding path program 1 times [2020-10-22 01:23:28,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:28,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869475052] [2020-10-22 01:23:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:28,548 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 01:23:28,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869475052] [2020-10-22 01:23:28,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:28,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:28,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1356545004] [2020-10-22 01:23:28,549 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:28,550 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:28,553 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 59 transitions. [2020-10-22 01:23:28,553 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:28,638 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:28,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:28,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:28,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:28,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:28,640 INFO L87 Difference]: Start difference. First operand 275 states and 697 transitions. Second operand 3 states. [2020-10-22 01:23:28,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:28,702 INFO L93 Difference]: Finished difference Result 498 states and 1244 transitions. [2020-10-22 01:23:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:28,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-22 01:23:28,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:28,706 INFO L225 Difference]: With dead ends: 498 [2020-10-22 01:23:28,706 INFO L226 Difference]: Without dead ends: 337 [2020-10-22 01:23:28,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 01:23:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-22 01:23:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 324. [2020-10-22 01:23:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-22 01:23:28,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 807 transitions. [2020-10-22 01:23:28,720 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 807 transitions. Word has length 17 [2020-10-22 01:23:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:28,720 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 807 transitions. [2020-10-22 01:23:28,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:28,720 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 807 transitions. [2020-10-22 01:23:28,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 01:23:28,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:28,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:28,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 01:23:28,723 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:28,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1585776456, now seen corresponding path program 2 times [2020-10-22 01:23:28,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:28,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050172304] [2020-10-22 01:23:28,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:28,764 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 01:23:28,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050172304] [2020-10-22 01:23:28,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:28,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:28,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [992323332] [2020-10-22 01:23:28,766 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:28,767 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:28,770 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 64 transitions. [2020-10-22 01:23:28,770 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:28,829 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5447#(not (= ~x~0 1))] [2020-10-22 01:23:28,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:23:28,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:28,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:23:28,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:28,830 INFO L87 Difference]: Start difference. First operand 324 states and 807 transitions. Second operand 4 states. [2020-10-22 01:23:28,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:28,855 INFO L93 Difference]: Finished difference Result 468 states and 1071 transitions. [2020-10-22 01:23:28,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:23:28,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 01:23:28,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:28,859 INFO L225 Difference]: With dead ends: 468 [2020-10-22 01:23:28,874 INFO L226 Difference]: Without dead ends: 468 [2020-10-22 01:23:28,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-10-22 01:23:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 372. [2020-10-22 01:23:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-10-22 01:23:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 886 transitions. [2020-10-22 01:23:28,886 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 886 transitions. Word has length 17 [2020-10-22 01:23:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:28,887 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 886 transitions. [2020-10-22 01:23:28,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:23:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 886 transitions. [2020-10-22 01:23:28,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 01:23:28,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:28,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:28,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 01:23:28,896 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:28,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:28,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1393839672, now seen corresponding path program 3 times [2020-10-22 01:23:28,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:28,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419866465] [2020-10-22 01:23:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:28,930 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 01:23:28,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419866465] [2020-10-22 01:23:28,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:28,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:28,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [499484435] [2020-10-22 01:23:28,931 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:28,932 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:28,934 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 59 transitions. [2020-10-22 01:23:28,935 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:28,980 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:28,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:28,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:28,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:28,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:28,982 INFO L87 Difference]: Start difference. First operand 372 states and 886 transitions. Second operand 3 states. [2020-10-22 01:23:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,023 INFO L93 Difference]: Finished difference Result 322 states and 719 transitions. [2020-10-22 01:23:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:29,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-22 01:23:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,025 INFO L225 Difference]: With dead ends: 322 [2020-10-22 01:23:29,025 INFO L226 Difference]: Without dead ends: 236 [2020-10-22 01:23:29,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 01:23:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-22 01:23:29,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 164. [2020-10-22 01:23:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-22 01:23:29,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 340 transitions. [2020-10-22 01:23:29,032 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 340 transitions. Word has length 17 [2020-10-22 01:23:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,033 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 340 transitions. [2020-10-22 01:23:29,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 340 transitions. [2020-10-22 01:23:29,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 01:23:29,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:29,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:29,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 01:23:29,035 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:29,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:29,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1019969534, now seen corresponding path program 1 times [2020-10-22 01:23:29,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:29,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016961930] [2020-10-22 01:23:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:29,080 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 01:23:29,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016961930] [2020-10-22 01:23:29,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:29,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 01:23:29,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [372253374] [2020-10-22 01:23:29,081 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:29,083 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:29,086 INFO L252 McrAutomatonBuilder]: Finished intersection with 55 states and 81 transitions. [2020-10-22 01:23:29,087 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:29,270 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [7317#(<= 1 ULTIMATE.start_thr2_~b12~0), 7318#(<= 1 ~b1~0)] [2020-10-22 01:23:29,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 01:23:29,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:29,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 01:23:29,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-22 01:23:29,272 INFO L87 Difference]: Start difference. First operand 164 states and 340 transitions. Second operand 6 states. [2020-10-22 01:23:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,323 INFO L93 Difference]: Finished difference Result 166 states and 338 transitions. [2020-10-22 01:23:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 01:23:29,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-22 01:23:29,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,325 INFO L225 Difference]: With dead ends: 166 [2020-10-22 01:23:29,325 INFO L226 Difference]: Without dead ends: 128 [2020-10-22 01:23:29,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 01:23:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-22 01:23:29,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-22 01:23:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-22 01:23:29,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 256 transitions. [2020-10-22 01:23:29,334 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 256 transitions. Word has length 20 [2020-10-22 01:23:29,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,335 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 256 transitions. [2020-10-22 01:23:29,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 01:23:29,339 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 256 transitions. [2020-10-22 01:23:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 01:23:29,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:29,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:29,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 01:23:29,344 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:29,344 INFO L82 PathProgramCache]: Analyzing trace with hash -666849249, now seen corresponding path program 1 times [2020-10-22 01:23:29,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:29,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991211174] [2020-10-22 01:23:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:29,435 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 01:23:29,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991211174] [2020-10-22 01:23:29,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:29,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 01:23:29,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1066560762] [2020-10-22 01:23:29,437 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:29,438 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:29,442 INFO L252 McrAutomatonBuilder]: Finished intersection with 53 states and 78 transitions. [2020-10-22 01:23:29,442 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:29,554 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:29,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:23:29,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:29,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:23:29,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:29,556 INFO L87 Difference]: Start difference. First operand 128 states and 256 transitions. Second operand 4 states. [2020-10-22 01:23:29,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,592 INFO L93 Difference]: Finished difference Result 126 states and 247 transitions. [2020-10-22 01:23:29,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:23:29,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-22 01:23:29,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,593 INFO L225 Difference]: With dead ends: 126 [2020-10-22 01:23:29,594 INFO L226 Difference]: Without dead ends: 109 [2020-10-22 01:23:29,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-22 01:23:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-22 01:23:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-22 01:23:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 211 transitions. [2020-10-22 01:23:29,598 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 211 transitions. Word has length 20 [2020-10-22 01:23:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,599 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 211 transitions. [2020-10-22 01:23:29,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:23:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 211 transitions. [2020-10-22 01:23:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-22 01:23:29,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:29,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:29,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 01:23:29,601 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:29,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:29,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1837339203, now seen corresponding path program 1 times [2020-10-22 01:23:29,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:29,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159179677] [2020-10-22 01:23:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:29,629 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 01:23:29,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159179677] [2020-10-22 01:23:29,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:29,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:29,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2118222196] [2020-10-22 01:23:29,631 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:29,632 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:29,637 INFO L252 McrAutomatonBuilder]: Finished intersection with 58 states and 85 transitions. [2020-10-22 01:23:29,637 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:29,727 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [8096#(= ~x~0 1), 8097#(or (= ~x~0 1) (= 2 ~x~0))] [2020-10-22 01:23:29,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:23:29,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:23:29,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:29,729 INFO L87 Difference]: Start difference. First operand 109 states and 211 transitions. Second operand 5 states. [2020-10-22 01:23:29,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:29,743 INFO L93 Difference]: Finished difference Result 117 states and 255 transitions. [2020-10-22 01:23:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:23:29,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-22 01:23:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:29,745 INFO L225 Difference]: With dead ends: 117 [2020-10-22 01:23:29,745 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 01:23:29,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 01:23:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 01:23:29,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 01:23:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 01:23:29,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-10-22 01:23:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:29,747 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 01:23:29,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:23:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 01:23:29,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 01:23:29,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 01:23:29,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:23:29 BasicIcfg [2020-10-22 01:23:29,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 01:23:29,754 INFO L168 Benchmark]: Toolchain (without parser) took 5193.37 ms. Allocated memory was 138.9 MB in the beginning and 250.6 MB in the end (delta: 111.7 MB). Free memory was 100.0 MB in the beginning and 107.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 103.9 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,755 INFO L168 Benchmark]: CDTParser took 3.04 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.19 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 155.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.04 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,757 INFO L168 Benchmark]: Boogie Preprocessor took 30.95 ms. Allocated memory is still 201.3 MB. Free memory was 153.8 MB in the beginning and 151.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,758 INFO L168 Benchmark]: RCFGBuilder took 540.09 ms. Allocated memory is still 201.3 MB. Free memory was 151.8 MB in the beginning and 125.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,759 INFO L168 Benchmark]: TraceAbstraction took 3809.77 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 125.0 MB in the beginning and 107.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:29,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.04 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.19 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 155.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 91.04 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.95 ms. Allocated memory is still 201.3 MB. Free memory was 153.8 MB in the beginning and 151.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 540.09 ms. Allocated memory is still 201.3 MB. Free memory was 151.8 MB in the beginning and 125.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3809.77 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 125.0 MB in the beginning and 107.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2618 VarBasedMoverChecksPositive, 66 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 441 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 96 PlacesBefore, 47 PlacesAfterwards, 118 TransitionsBefore, 62 TransitionsAfterwards, 4950 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 7 ChoiceCompositions, 81 TotalNumberOfCompositions, 14705 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: 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, 93 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 578 SDtfs, 312 SDslu, 525 SDs, 0 SdLazy, 132 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 120 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 189 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 3767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...