/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:04:53,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:04:53,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:04:53,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:04:53,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:04:53,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:04:53,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:04:53,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:04:53,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:04:53,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:04:53,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:04:53,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:04:53,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:04:53,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:04:53,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:04:53,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:04:53,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:04:53,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:04:53,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:04:53,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:04:53,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:04:53,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:04:53,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:04:53,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:04:53,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:04:53,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:04:53,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:04:53,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:04:53,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:04:53,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:04:53,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:04:53,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:04:53,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:04:53,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:04:53,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:04:53,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:04:53,523 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 [2020-11-09 17:04:53,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:04:53,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:04:53,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:04:53,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:04:53,574 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:04:53,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:04:53,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:04:53,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:04:53,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:04:53,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:04:53,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:04:53,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:04:53,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:04:53,577 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:04:53,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:04:53,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:04:53,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:04:53,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:04:53,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:04:53,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:04:53,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:04:53,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:04:53,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:04:53,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:04:53,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:04:53,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:04:53,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:04:53,579 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:04:53,580 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:04:53,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:04:53,580 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:04:53,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:04:53,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:04:53,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:04:53,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:04:53,985 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:04:53,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2020-11-09 17:04:54,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98050e51b/0731de650c7f4ebe8e5dbf761d3e4a48/FLAG8801c4b8d [2020-11-09 17:04:54,727 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:04:54,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2020-11-09 17:04:54,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98050e51b/0731de650c7f4ebe8e5dbf761d3e4a48/FLAG8801c4b8d [2020-11-09 17:04:54,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98050e51b/0731de650c7f4ebe8e5dbf761d3e4a48 [2020-11-09 17:04:54,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:04:55,005 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:04:55,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:04:55,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:04:55,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:04:55,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:04:54" (1/1) ... [2020-11-09 17:04:55,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1635be52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55, skipping insertion in model container [2020-11-09 17:04:55,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:04:54" (1/1) ... [2020-11-09 17:04:55,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:04:55,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:04:55,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:04:55,530 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:04:55,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:04:55,746 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:04:55,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55 WrapperNode [2020-11-09 17:04:55,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:04:55,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:04:55,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:04:55,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:04:55,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:04:55,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:04:55,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:04:55,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:04:55,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (1/1) ... [2020-11-09 17:04:55,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:04:55,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:04:55,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:04:55,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:04:55,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (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 17:04:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:04:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:04:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:04:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:04:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:04:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:04:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:04:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:04:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:04:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:04:55,985 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 17:04:56,432 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:04:56,432 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:04:56,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:04:56 BoogieIcfgContainer [2020-11-09 17:04:56,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:04:56,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:04:56,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:04:56,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:04:56,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:04:54" (1/3) ... [2020-11-09 17:04:56,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78312aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:04:56, skipping insertion in model container [2020-11-09 17:04:56,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:04:55" (2/3) ... [2020-11-09 17:04:56,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78312aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:04:56, skipping insertion in model container [2020-11-09 17:04:56,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:04:56" (3/3) ... [2020-11-09 17:04:56,444 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2020-11-09 17:04:56,460 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:04:56,461 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:04:56,465 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:04:56,466 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:04:56,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,506 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,506 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,507 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,507 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,508 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,508 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,509 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,509 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,510 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,510 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,511 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,511 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,513 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,513 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,513 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,514 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,514 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,515 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,515 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,515 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,515 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,518 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,518 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,519 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,519 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,527 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,527 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,527 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:04:56,534 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:04:56,547 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:04:56,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:04:56,571 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:04:56,571 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:04:56,571 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:04:56,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:04:56,571 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:04:56,572 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:04:56,572 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:04:56,584 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:04:56,585 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:04:56,588 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:04:56,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 17:04:56,653 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 17:04:56,654 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:04:56,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:04:56,661 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:04:57,167 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-09 17:05:00,134 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-09 17:05:00,328 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-09 17:05:01,395 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-09 17:05:01,696 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-11-09 17:05:01,991 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2020-11-09 17:05:02,444 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-11-09 17:05:03,144 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:05:03,311 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:05:03,711 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:05:03,886 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:05:04,171 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-11-09 17:05:04,172 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-09 17:05:04,178 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:05:04,204 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 17:05:04,206 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 17:05:04,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:05:04,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:04,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:04,213 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:04,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:04,218 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-11-09 17:05:04,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:04,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540117553] [2020-11-09 17:05:04,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:04,507 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 17:05:04,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540117553] [2020-11-09 17:05:04,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:04,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:05:04,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1012530055] [2020-11-09 17:05:04,512 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:04,517 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:04,533 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:05:04,533 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:04,542 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:04,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:05:04,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:04,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:05:04,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:04,560 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 17:05:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:04,603 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 17:05:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:05:04,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 17:05:04,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:04,630 INFO L225 Difference]: With dead ends: 282 [2020-11-09 17:05:04,631 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 17:05:04,634 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 17:05:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 17:05:04,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 17:05:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 17:05:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 17:05:04,736 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 17:05:04,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:04,737 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 17:05:04,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:05:04,737 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 17:05:04,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:05:04,740 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:04,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:04,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:05:04,740 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:04,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:04,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1991399085, now seen corresponding path program 1 times [2020-11-09 17:05:04,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:04,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894147756] [2020-11-09 17:05:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:04,924 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 17:05:04,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894147756] [2020-11-09 17:05:04,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:04,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:05:04,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [209381969] [2020-11-09 17:05:04,926 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:04,927 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:04,932 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-11-09 17:05:04,933 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:05,081 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:05,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:05:05,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:05,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:05:05,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:05:05,084 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 17:05:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:05,134 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 17:05:05,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:05:05,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:05:05,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:05,138 INFO L225 Difference]: With dead ends: 242 [2020-11-09 17:05:05,138 INFO L226 Difference]: Without dead ends: 116 [2020-11-09 17:05:05,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 17:05:05,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-09 17:05:05,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-11-09 17:05:05,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-09 17:05:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 284 transitions. [2020-11-09 17:05:05,155 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 284 transitions. Word has length 9 [2020-11-09 17:05:05,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:05,155 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 284 transitions. [2020-11-09 17:05:05,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:05:05,155 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-11-09 17:05:05,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:05:05,159 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:05,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:05,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:05:05,159 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:05,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:05,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1270638185, now seen corresponding path program 1 times [2020-11-09 17:05:05,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:05,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781377166] [2020-11-09 17:05:05,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:05,281 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 17:05:05,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781377166] [2020-11-09 17:05:05,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:05,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:05:05,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [211121706] [2020-11-09 17:05:05,283 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:05,284 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:05,286 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-11-09 17:05:05,287 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:05,304 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:05,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:05:05,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:05,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:05:05,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:05:05,307 INFO L87 Difference]: Start difference. First operand 116 states and 284 transitions. Second operand 4 states. [2020-11-09 17:05:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:05,341 INFO L93 Difference]: Finished difference Result 140 states and 326 transitions. [2020-11-09 17:05:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:05:05,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:05:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:05,343 INFO L225 Difference]: With dead ends: 140 [2020-11-09 17:05:05,343 INFO L226 Difference]: Without dead ends: 68 [2020-11-09 17:05:05,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:05:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-09 17:05:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-09 17:05:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-09 17:05:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-11-09 17:05:05,353 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 11 [2020-11-09 17:05:05,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:05,353 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-11-09 17:05:05,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:05:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-11-09 17:05:05,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:05:05,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:05,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:05,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:05:05,355 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:05,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-11-09 17:05:05,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:05,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005907517] [2020-11-09 17:05:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:05,497 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 17:05:05,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005907517] [2020-11-09 17:05:05,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:05,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:05:05,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1142534605] [2020-11-09 17:05:05,499 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:05,501 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:05,504 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-11-09 17:05:05,505 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:05,526 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:05,555 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:05,617 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:05,641 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:05,647 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2173#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 17:05:05,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:05:05,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:05,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:05:05,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:05:05,648 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2020-11-09 17:05:05,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:05,733 INFO L93 Difference]: Finished difference Result 67 states and 126 transitions. [2020-11-09 17:05:05,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:05:05,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:05:05,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:05,735 INFO L225 Difference]: With dead ends: 67 [2020-11-09 17:05:05,735 INFO L226 Difference]: Without dead ends: 45 [2020-11-09 17:05:05,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:05:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-09 17:05:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-09 17:05:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-09 17:05:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-11-09 17:05:05,738 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 13 [2020-11-09 17:05:05,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:05,739 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-11-09 17:05:05,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:05:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-11-09 17:05:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:05:05,740 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:05,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:05,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:05:05,740 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:05,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:05,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1799830367, now seen corresponding path program 1 times [2020-11-09 17:05:05,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:05,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864254361] [2020-11-09 17:05:05,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:05,842 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 17:05:05,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864254361] [2020-11-09 17:05:05,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:05,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:05:05,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1164005300] [2020-11-09 17:05:05,843 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:05,846 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:05,850 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 29 transitions. [2020-11-09 17:05:05,850 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:05,860 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:05,919 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [2341#(not (= 3 ~__unbuffered_cnt~0)), 2342#(not (= ~__unbuffered_cnt~0 2)), 2343#(not (= ~__unbuffered_cnt~0 1))] [2020-11-09 17:05:05,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 17:05:05,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:05,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 17:05:05,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-09 17:05:05,920 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 9 states. [2020-11-09 17:05:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:06,026 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-11-09 17:05:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:05:06,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-09 17:05:06,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:06,027 INFO L225 Difference]: With dead ends: 42 [2020-11-09 17:05:06,027 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 17:05:06,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-09 17:05:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 17:05:06,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 17:05:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 17:05:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 17:05:06,031 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-11-09 17:05:06,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:06,032 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 17:05:06,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 17:05:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 17:05:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:05:06,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:06,034 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 17:05:06,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:05:06,034 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:06,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1269131745, now seen corresponding path program 1 times [2020-11-09 17:05:06,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:06,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313034485] [2020-11-09 17:05:06,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:06,076 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 17:05:06,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313034485] [2020-11-09 17:05:06,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:06,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:05:06,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1223981193] [2020-11-09 17:05:06,078 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:06,080 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:06,085 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 33 transitions. [2020-11-09 17:05:06,085 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:06,102 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:06,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:05:06,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:06,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:05:06,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:05:06,104 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-11-09 17:05:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:06,123 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 17:05:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:05:06,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:05:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:06,124 INFO L225 Difference]: With dead ends: 35 [2020-11-09 17:05:06,124 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:05:06,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 17:05:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:05:06,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:05:06,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:05:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:05:06,125 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:05:06,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:06,126 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:05:06,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:05:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:05:06,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:05:06,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:05:06,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:05:06 BasicIcfg [2020-11-09 17:05:06,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:05:06,131 INFO L168 Benchmark]: Toolchain (without parser) took 11130.15 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 124.9 MB in the beginning and 142.7 MB in the end (delta: -17.8 MB). Peak memory consumption was 52.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:06,132 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:05:06,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.89 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 93.1 MB in the end (delta: 31.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:06,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.73 ms. Allocated memory is still 151.0 MB. Free memory was 93.1 MB in the beginning and 91.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:06,134 INFO L168 Benchmark]: Boogie Preprocessor took 54.67 ms. Allocated memory is still 151.0 MB. Free memory was 91.1 MB in the beginning and 89.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:06,135 INFO L168 Benchmark]: RCFGBuilder took 535.83 ms. Allocated memory is still 151.0 MB. Free memory was 89.7 MB in the beginning and 67.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:06,136 INFO L168 Benchmark]: TraceAbstraction took 9693.58 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 66.9 MB in the beginning and 142.7 MB in the end (delta: -75.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:05:06,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 741.89 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 93.1 MB in the end (delta: 31.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.73 ms. Allocated memory is still 151.0 MB. Free memory was 93.1 MB in the beginning and 91.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.67 ms. Allocated memory is still 151.0 MB. Free memory was 91.1 MB in the beginning and 89.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 535.83 ms. Allocated memory is still 151.0 MB. Free memory was 89.7 MB in the beginning and 67.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9693.58 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 66.9 MB in the beginning and 142.7 MB in the end (delta: -75.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 797 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.5s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 102 SDtfs, 106 SDslu, 139 SDs, 0 SdLazy, 97 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s 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, 0.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 2411 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...