/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-wmm/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:40:35,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:40:35,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:40:35,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:40:35,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:40:35,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:40:35,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:40:35,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:40:35,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:40:35,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:40:35,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:40:35,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:40:35,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:40:35,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:40:35,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:40:35,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:40:35,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:40:35,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:40:35,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:40:35,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:40:35,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:40:35,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:40:35,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:40:35,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:40:35,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:40:35,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:40:35,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:40:35,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:40:35,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:40:35,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:40:35,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:40:35,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:40:35,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:40:35,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:40:35,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:40:35,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:40:35,506 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-WP.epf [2020-11-09 15:40:35,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:40:35,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:40:35,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:40:35,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:40:35,537 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:40:35,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:40:35,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:40:35,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:40:35,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:40:35,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:40:35,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:40:35,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:40:35,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:40:35,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:40:35,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:40:35,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:40:35,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:40:35,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:40:35,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:40:35,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:40:35,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:40:35,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:40:35,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:40:35,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:40:35,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:40:35,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:40:35,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:40:35,542 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:40:35,542 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:40:35,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:40:35,542 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:40:35,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:40:35,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:40:35,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:40:35,977 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:40:35,977 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:40:35,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2020-11-09 15:40:36,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ea0611a/9ae62ef189a24269af05b11c7b8bb9ee/FLAG8e015b811 [2020-11-09 15:40:36,894 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:40:36,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2020-11-09 15:40:36,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ea0611a/9ae62ef189a24269af05b11c7b8bb9ee/FLAG8e015b811 [2020-11-09 15:40:37,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ea0611a/9ae62ef189a24269af05b11c7b8bb9ee [2020-11-09 15:40:37,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:40:37,152 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:40:37,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:40:37,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:40:37,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:40:37,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4180ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37, skipping insertion in model container [2020-11-09 15:40:37,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:40:37,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:40:37,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:40:37,706 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:40:37,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:40:37,911 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:40:37,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37 WrapperNode [2020-11-09 15:40:37,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:40:37,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:40:37,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:40:37,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:40:37,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:40:37,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:40:37,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:40:37,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:40:37,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (1/1) ... [2020-11-09 15:40:37,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:40:37,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:40:37,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:40:37,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:40:37,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (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 [2020-11-09 15:40:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:40:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:40:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:40:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:40:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:40:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:40:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:40:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:40:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:40:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:40:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:40:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:40:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:40:38,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:40:38,092 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:40:38,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:40:38,718 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:40:38,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:40:38 BoogieIcfgContainer [2020-11-09 15:40:38,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:40:38,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:40:38,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:40:38,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:40:38,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:40:37" (1/3) ... [2020-11-09 15:40:38,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3b0653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:40:38, skipping insertion in model container [2020-11-09 15:40:38,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:40:37" (2/3) ... [2020-11-09 15:40:38,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3b0653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:40:38, skipping insertion in model container [2020-11-09 15:40:38,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:40:38" (3/3) ... [2020-11-09 15:40:38,730 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2020-11-09 15:40:38,749 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:40:38,750 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:40:38,755 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:40:38,756 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:40:38,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,813 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,813 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,819 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,819 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,827 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,827 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:40:38,840 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:40:38,854 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:40:38,879 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:40:38,879 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:40:38,879 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:40:38,879 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:40:38,880 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:40:38,880 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:40:38,880 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:40:38,880 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:40:38,895 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:40:38,896 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:40:38,899 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:40:38,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 15:40:38,957 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 15:40:38,957 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:40:38,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 15:40:38,966 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 15:40:42,269 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 15:40:42,395 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:40:42,521 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 15:40:42,642 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:40:42,749 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-11-09 15:40:43,159 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-11-09 15:40:43,513 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-11-09 15:40:43,628 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:40:43,655 INFO L131 LiptonReduction]: Checked pairs total: 3181 [2020-11-09 15:40:43,655 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-11-09 15:40:43,665 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 15:40:43,694 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 15:40:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 15:40:43,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:40:43,707 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:40:43,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:40:43,710 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:40:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:40:43,724 INFO L82 PathProgramCache]: Analyzing trace with hash 2101373786, now seen corresponding path program 1 times [2020-11-09 15:40:43,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:40:43,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926435459] [2020-11-09 15:40:43,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:40:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:40:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:40:44,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926435459] [2020-11-09 15:40:44,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:40:44,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:40:44,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1122758146] [2020-11-09 15:40:44,019 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:40:44,022 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:40:44,034 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:40:44,034 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:40:44,038 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:40:44,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:40:44,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:40:44,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:40:44,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:40:44,056 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 15:40:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:40:44,114 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 15:40:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:40:44,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 15:40:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:40:44,132 INFO L225 Difference]: With dead ends: 282 [2020-11-09 15:40:44,132 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 15:40:44,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:40:44,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 15:40:44,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 15:40:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 15:40:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 15:40:44,207 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 15:40:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:40:44,208 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 15:40:44,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:40:44,209 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 15:40:44,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:40:44,210 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:40:44,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:40:44,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:40:44,211 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:40:44,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:40:44,212 INFO L82 PathProgramCache]: Analyzing trace with hash 718076695, now seen corresponding path program 1 times [2020-11-09 15:40:44,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:40:44,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313366436] [2020-11-09 15:40:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:40:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:40:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:40:44,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313366436] [2020-11-09 15:40:44,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:40:44,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:40:44,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1313445708] [2020-11-09 15:40:44,353 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:40:44,354 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:40:44,359 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-11-09 15:40:44,359 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:40:44,370 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:40:44,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:40:44,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:40:44,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:40:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:40:44,373 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 15:40:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:40:44,405 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 15:40:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:40:44,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 15:40:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:40:44,408 INFO L225 Difference]: With dead ends: 242 [2020-11-09 15:40:44,408 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 15:40:44,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:40:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 15:40:44,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 15:40:44,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 15:40:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-09 15:40:44,428 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-09 15:40:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:40:44,428 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-09 15:40:44,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:40:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-09 15:40:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:40:44,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:40:44,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:40:44,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:40:44,430 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:40:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:40:44,431 INFO L82 PathProgramCache]: Analyzing trace with hash -676988276, now seen corresponding path program 1 times [2020-11-09 15:40:44,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:40:44,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629259612] [2020-11-09 15:40:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:40:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:40:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:40:44,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629259612] [2020-11-09 15:40:44,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:40:44,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:40:44,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [935316075] [2020-11-09 15:40:44,555 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:40:44,557 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:40:44,561 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:40:44,562 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:40:44,685 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:40:44,735 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:40:44,760 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:40:44,771 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1950#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 15:40:44,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:40:44,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:40:44,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:40:44,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:40:44,773 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 5 states. [2020-11-09 15:40:44,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:40:44,850 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-11-09 15:40:44,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:40:44,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 15:40:44,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:40:44,852 INFO L225 Difference]: With dead ends: 137 [2020-11-09 15:40:44,852 INFO L226 Difference]: Without dead ends: 97 [2020-11-09 15:40:44,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:40:44,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-09 15:40:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-09 15:40:44,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-09 15:40:44,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-11-09 15:40:44,862 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 11 [2020-11-09 15:40:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:40:44,862 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-11-09 15:40:44,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:40:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-09 15:40:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:40:44,864 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:40:44,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:40:44,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:40:44,864 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:40:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:40:44,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1603145941, now seen corresponding path program 1 times [2020-11-09 15:40:44,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:40:44,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420594979] [2020-11-09 15:40:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:40:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:40:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:40:44,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420594979] [2020-11-09 15:40:44,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:40:44,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:40:44,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [855343833] [2020-11-09 15:40:44,943 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:40:44,944 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:40:44,947 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-11-09 15:40:44,948 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:40:45,047 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2292#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:40:45,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:40:45,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:40:45,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:40:45,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:40:45,053 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 7 states. [2020-11-09 15:40:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:40:45,152 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-11-09 15:40:45,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:40:45,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 15:40:45,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:40:45,154 INFO L225 Difference]: With dead ends: 92 [2020-11-09 15:40:45,154 INFO L226 Difference]: Without dead ends: 84 [2020-11-09 15:40:45,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:40:45,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-09 15:40:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-09 15:40:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-09 15:40:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-11-09 15:40:45,170 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-11-09 15:40:45,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:40:45,171 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-11-09 15:40:45,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:40:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-11-09 15:40:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:40:45,172 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:40:45,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:40:45,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:40:45,173 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:40:45,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:40:45,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1724594669, now seen corresponding path program 1 times [2020-11-09 15:40:45,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:40:45,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446867612] [2020-11-09 15:40:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:40:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:40:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:40:45,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446867612] [2020-11-09 15:40:45,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:40:45,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:40:45,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [960814594] [2020-11-09 15:40:45,234 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:40:45,252 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:40:45,261 INFO L252 McrAutomatonBuilder]: Finished intersection with 61 states and 107 transitions. [2020-11-09 15:40:45,261 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:40:45,472 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:40:45,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:40:45,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:40:45,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:40:45,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:40:45,480 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-11-09 15:40:45,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:40:45,507 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions. [2020-11-09 15:40:45,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:40:45,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:40:45,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:40:45,508 INFO L225 Difference]: With dead ends: 97 [2020-11-09 15:40:45,509 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 15:40:45,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:40:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 15:40:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 15:40:45,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 15:40:45,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 15:40:45,513 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2020-11-09 15:40:45,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:40:45,513 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 15:40:45,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:40:45,514 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 15:40:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:40:45,519 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:40:45,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:40:45,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:40:45,522 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:40:45,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:40:45,522 INFO L82 PathProgramCache]: Analyzing trace with hash -737350579, now seen corresponding path program 2 times [2020-11-09 15:40:45,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:40:45,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609641394] [2020-11-09 15:40:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:40:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:40:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:40:45,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609641394] [2020-11-09 15:40:45,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:40:45,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:40:45,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [493109995] [2020-11-09 15:40:45,590 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:40:45,593 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:40:45,599 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-11-09 15:40:45,599 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:40:45,610 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:40:45,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:40:45,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:40:45,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:40:45,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:40:45,612 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-11-09 15:40:45,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:40:45,622 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 15:40:45,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:40:45,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-09 15:40:45,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:40:45,624 INFO L225 Difference]: With dead ends: 35 [2020-11-09 15:40:45,624 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:40:45,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:40:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:40:45,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:40:45,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:40:45,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:40:45,626 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 15:40:45,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:40:45,626 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:40:45,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:40:45,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:40:45,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:40:45,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:40:45,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:40:45 BasicIcfg [2020-11-09 15:40:45,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:40:45,636 INFO L168 Benchmark]: Toolchain (without parser) took 8486.76 ms. Allocated memory was 166.7 MB in the beginning and 241.2 MB in the end (delta: 74.4 MB). Free memory was 141.4 MB in the beginning and 181.9 MB in the end (delta: -40.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:40:45,637 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory was 96.1 MB in the beginning and 95.9 MB in the end (delta: 162.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:40:45,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.28 ms. Allocated memory is still 166.7 MB. Free memory was 140.7 MB in the beginning and 143.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 8.0 GB. [2020-11-09 15:40:45,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 166.7 MB. Free memory was 143.6 MB in the beginning and 141.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:40:45,644 INFO L168 Benchmark]: Boogie Preprocessor took 30.42 ms. Allocated memory is still 166.7 MB. Free memory was 141.6 MB in the beginning and 140.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:40:45,646 INFO L168 Benchmark]: RCFGBuilder took 724.46 ms. Allocated memory is still 166.7 MB. Free memory was 140.6 MB in the beginning and 118.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:40:45,647 INFO L168 Benchmark]: TraceAbstraction took 6909.87 ms. Allocated memory was 166.7 MB in the beginning and 241.2 MB in the end (delta: 74.4 MB). Free memory was 117.5 MB in the beginning and 181.9 MB in the end (delta: -64.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:40:45,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory was 96.1 MB in the beginning and 95.9 MB in the end (delta: 162.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 757.28 ms. Allocated memory is still 166.7 MB. Free memory was 140.7 MB in the beginning and 143.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 166.7 MB. Free memory was 143.6 MB in the beginning and 141.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.42 ms. Allocated memory is still 166.7 MB. Free memory was 141.6 MB in the beginning and 140.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 724.46 ms. Allocated memory is still 166.7 MB. Free memory was 140.6 MB in the beginning and 118.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6909.87 ms. Allocated memory was 166.7 MB in the beginning and 241.2 MB in the end (delta: 74.4 MB). Free memory was 117.5 MB in the beginning and 181.9 MB in the end (delta: -64.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 821 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 3181 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 116 SDtfs, 111 SDslu, 161 SDs, 0 SdLazy, 79 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...