/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/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:07:49,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:07:49,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:07:49,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:07:49,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:07:49,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:07:49,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:07:49,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:07:49,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:07:49,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:07:49,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:07:49,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:07:49,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:07:49,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:07:49,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:07:49,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:07:49,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:07:49,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:07:49,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:07:49,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:07:49,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:07:49,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:07:49,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:07:49,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:07:49,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:07:49,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:07:49,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:07:49,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:07:49,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:07:49,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:07:49,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:07:49,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:07:49,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:07:49,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:07:49,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:07:49,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:07:49,984 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 17:07:50,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:07:50,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:07:50,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:07:50,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:07:50,015 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:07:50,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:07:50,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:07:50,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:07:50,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:07:50,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:07:50,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:07:50,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:07:50,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:07:50,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:07:50,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:07:50,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:07:50,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:07:50,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:07:50,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:07:50,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:07:50,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:07:50,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:07:50,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:07:50,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:07:50,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:07:50,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:07:50,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:07:50,020 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:07:50,020 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:07:50,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:07:50,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:07:50,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:07:50,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:07:50,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:07:50,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:07:50,525 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:07:50,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-11-09 17:07:50,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94bf49488/663134364b144804a42fde143cc0db12/FLAG4ff347516 [2020-11-09 17:07:51,474 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:07:51,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-11-09 17:07:51,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94bf49488/663134364b144804a42fde143cc0db12/FLAG4ff347516 [2020-11-09 17:07:51,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94bf49488/663134364b144804a42fde143cc0db12 [2020-11-09 17:07:51,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:07:51,738 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:07:51,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:51,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:07:51,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:07:51,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:51" (1/1) ... [2020-11-09 17:07:51,750 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 05:07:51, skipping insertion in model container [2020-11-09 17:07:51,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:51" (1/1) ... [2020-11-09 17:07:51,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:07:51,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:07:52,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:52,312 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:07:52,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:07:52,496 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:07:52,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52 WrapperNode [2020-11-09 17:07:52,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:07:52,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:52,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:07:52,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:07:52,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:07:52,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:07:52,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:07:52,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:07:52,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (1/1) ... [2020-11-09 17:07:52,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:07:52,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:07:52,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:07:52,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:07:52,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (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 17:07:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:07:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:07:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:07:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:07:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:07:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:07:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:07:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:07:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:07:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:07:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 17:07:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 17:07:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:07:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:07:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:07:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:07:52,703 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 17:07:53,203 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:07:53,204 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:07:53,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:53 BoogieIcfgContainer [2020-11-09 17:07:53,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:07:53,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:07:53,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:07:53,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:07:53,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:07:51" (1/3) ... [2020-11-09 17:07:53,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f61f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:53, skipping insertion in model container [2020-11-09 17:07:53,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:52" (2/3) ... [2020-11-09 17:07:53,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f61f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:53, skipping insertion in model container [2020-11-09 17:07:53,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:53" (3/3) ... [2020-11-09 17:07:53,217 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-11-09 17:07:53,233 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:07:53,234 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:07:53,238 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:07:53,239 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:07:53,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,288 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,288 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,290 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,290 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,291 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,291 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,291 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,296 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,303 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,303 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,304 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,304 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,307 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,308 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,311 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,311 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:07:53,314 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:07:53,329 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 17:07:53,355 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:07:53,355 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:07:53,355 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:07:53,355 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:07:53,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:07:53,356 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:07:53,356 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:07:53,356 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:07:53,371 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:07:53,372 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 17:07:53,375 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 17:07:53,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-11-09 17:07:53,432 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-11-09 17:07:53,432 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:07:53,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 17:07:53,442 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 17:07:56,648 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 17:07:56,834 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 17:07:57,296 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-09 17:07:57,537 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-09 17:07:58,053 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:07:58,167 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:58,397 WARN L194 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:07:58,508 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:07:58,762 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 17:07:58,961 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-11-09 17:07:59,029 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-11-09 17:07:59,030 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-11-09 17:07:59,036 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 17:07:59,106 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 17:07:59,109 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 17:07:59,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:07:59,127 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:59,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:59,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:59,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:59,141 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-11-09 17:07:59,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:59,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377749346] [2020-11-09 17:07:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:59,452 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 17:07:59,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377749346] [2020-11-09 17:07:59,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:59,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:07:59,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [889185427] [2020-11-09 17:07:59,456 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:59,459 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:59,475 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 17:07:59,475 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:07:59,480 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:07:59,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:07:59,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:07:59,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:07:59,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:07:59,499 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 17:07:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:07:59,552 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 17:07:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:07:59,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 17:07:59,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:07:59,577 INFO L225 Difference]: With dead ends: 670 [2020-11-09 17:07:59,578 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 17:07:59,579 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 17:07:59,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 17:07:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 17:07:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 17:07:59,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 17:07:59,714 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 17:07:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:07:59,716 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 17:07:59,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:07:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 17:07:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:07:59,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:07:59,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:07:59,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:07:59,721 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:07:59,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:07:59,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-11-09 17:07:59,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:07:59,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639614691] [2020-11-09 17:07:59,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:07:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:07:59,875 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 17:07:59,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639614691] [2020-11-09 17:07:59,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:07:59,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:07:59,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1908389470] [2020-11-09 17:07:59,877 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:07:59,879 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:07:59,883 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:07:59,883 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:08:00,019 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:08:00,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:08:00,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:08:00,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:08:00,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:08:00,023 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 17:08:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:08:00,064 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-11-09 17:08:00,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:08:00,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:08:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:08:00,077 INFO L225 Difference]: With dead ends: 724 [2020-11-09 17:08:00,077 INFO L226 Difference]: Without dead ends: 412 [2020-11-09 17:08:00,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 17:08:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-09 17:08:00,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-09 17:08:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-11-09 17:08:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-11-09 17:08:00,117 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-11-09 17:08:00,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:08:00,117 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-11-09 17:08:00,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:08:00,117 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-11-09 17:08:00,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:08:00,126 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:08:00,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:08:00,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:08:00,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:08:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:08:00,127 INFO L82 PathProgramCache]: Analyzing trace with hash -295858392, now seen corresponding path program 1 times [2020-11-09 17:08:00,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:08:00,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372330391] [2020-11-09 17:08:00,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:08:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:08:00,219 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 17:08:00,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372330391] [2020-11-09 17:08:00,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:08:00,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:08:00,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1177173198] [2020-11-09 17:08:00,220 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:08:00,222 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:08:00,224 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 17:08:00,224 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:08:00,231 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:08:00,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:08:00,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:08:00,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:08:00,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:08:00,233 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-11-09 17:08:00,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:08:00,243 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-11-09 17:08:00,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:08:00,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 17:08:00,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:08:00,248 INFO L225 Difference]: With dead ends: 394 [2020-11-09 17:08:00,248 INFO L226 Difference]: Without dead ends: 394 [2020-11-09 17:08:00,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:08:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-09 17:08:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-09 17:08:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-09 17:08:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-11-09 17:08:00,266 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-11-09 17:08:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:08:00,267 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-11-09 17:08:00,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:08:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-11-09 17:08:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:08:00,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:08:00,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:08:00,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:08:00,269 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:08:00,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:08:00,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-11-09 17:08:00,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:08:00,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159703918] [2020-11-09 17:08:00,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:08:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:08:00,335 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 17:08:00,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159703918] [2020-11-09 17:08:00,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:08:00,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:08:00,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [885879537] [2020-11-09 17:08:00,340 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:08:00,341 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:08:00,345 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-11-09 17:08:00,345 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:08:00,419 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:08:00,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:08:00,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:08:00,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:08:00,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:08:00,420 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-11-09 17:08:00,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:08:00,453 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-11-09 17:08:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:08:00,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 17:08:00,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:08:00,457 INFO L225 Difference]: With dead ends: 538 [2020-11-09 17:08:00,457 INFO L226 Difference]: Without dead ends: 286 [2020-11-09 17:08:00,457 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 17:08:00,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-09 17:08:00,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-11-09 17:08:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-09 17:08:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-11-09 17:08:00,469 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-11-09 17:08:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:08:00,469 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-11-09 17:08:00,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:08:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-11-09 17:08:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:08:00,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:08:00,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:08:00,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:08:00,471 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:08:00,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:08:00,472 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-11-09 17:08:00,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:08:00,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640673614] [2020-11-09 17:08:00,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:08:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:08:00,606 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 17:08:00,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640673614] [2020-11-09 17:08:00,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:08:00,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:08:00,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1348611875] [2020-11-09 17:08:00,608 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:08:00,609 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:08:00,615 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 17:08:00,616 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:08:00,638 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,663 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,679 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,693 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,712 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,731 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,750 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,769 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:00,806 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7099#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 17:08:00,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:08:00,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:08:00,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:08:00,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:08:00,808 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 5 states. [2020-11-09 17:08:00,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:08:00,903 INFO L93 Difference]: Finished difference Result 301 states and 817 transitions. [2020-11-09 17:08:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:08:00,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 17:08:00,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:08:00,909 INFO L225 Difference]: With dead ends: 301 [2020-11-09 17:08:00,910 INFO L226 Difference]: Without dead ends: 208 [2020-11-09 17:08:00,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:08:00,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-09 17:08:00,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-11-09 17:08:00,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-09 17:08:00,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-11-09 17:08:00,919 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 14 [2020-11-09 17:08:00,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:08:00,919 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-11-09 17:08:00,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:08:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-11-09 17:08:00,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 17:08:00,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:08:00,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:08:00,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:08:00,922 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:08:00,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:08:00,923 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-11-09 17:08:00,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:08:00,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549720882] [2020-11-09 17:08:00,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:08:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:08:01,034 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 17:08:01,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549720882] [2020-11-09 17:08:01,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:08:01,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:08:01,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1976358567] [2020-11-09 17:08:01,035 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:08:01,037 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:08:01,045 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 76 transitions. [2020-11-09 17:08:01,045 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:08:01,050 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:01,105 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:01,120 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:08:01,215 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [7827#(not (= 4 ~__unbuffered_cnt~0)), 7828#(not (= ~__unbuffered_cnt~0 3)), 7829#(not (= ~__unbuffered_cnt~0 2))] [2020-11-09 17:08:01,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 17:08:01,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:08:01,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 17:08:01,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-09 17:08:01,217 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 9 states. [2020-11-09 17:08:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:08:01,334 INFO L93 Difference]: Finished difference Result 185 states and 463 transitions. [2020-11-09 17:08:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 17:08:01,335 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-09 17:08:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:08:01,336 INFO L225 Difference]: With dead ends: 185 [2020-11-09 17:08:01,336 INFO L226 Difference]: Without dead ends: 147 [2020-11-09 17:08:01,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-11-09 17:08:01,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-09 17:08:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-11-09 17:08:01,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-09 17:08:01,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 362 transitions. [2020-11-09 17:08:01,342 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 362 transitions. Word has length 16 [2020-11-09 17:08:01,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:08:01,343 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 362 transitions. [2020-11-09 17:08:01,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 17:08:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 362 transitions. [2020-11-09 17:08:01,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 17:08:01,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:08:01,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:08:01,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:08:01,344 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:08:01,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:08:01,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1961572935, now seen corresponding path program 1 times [2020-11-09 17:08:01,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:08:01,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898241652] [2020-11-09 17:08:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:08:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:08:01,419 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 17:08:01,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898241652] [2020-11-09 17:08:01,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:08:01,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:08:01,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [135139490] [2020-11-09 17:08:01,422 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:08:01,428 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:08:01,442 INFO L252 McrAutomatonBuilder]: Finished intersection with 65 states and 114 transitions. [2020-11-09 17:08:01,442 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:08:01,470 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:08:01,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:08:01,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:08:01,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:08:01,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:08:01,471 INFO L87 Difference]: Start difference. First operand 147 states and 362 transitions. Second operand 4 states. [2020-11-09 17:08:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:08:01,502 INFO L93 Difference]: Finished difference Result 230 states and 541 transitions. [2020-11-09 17:08:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:08:01,502 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 17:08:01,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:08:01,503 INFO L225 Difference]: With dead ends: 230 [2020-11-09 17:08:01,503 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 17:08:01,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 17:08:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 17:08:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 17:08:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 17:08:01,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 17:08:01,507 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 17:08:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:08:01,508 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 17:08:01,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:08:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 17:08:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 17:08:01,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:08:01,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:08:01,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:08:01,509 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:08:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:08:01,510 INFO L82 PathProgramCache]: Analyzing trace with hash 2013284665, now seen corresponding path program 2 times [2020-11-09 17:08:01,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:08:01,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938990055] [2020-11-09 17:08:01,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:08:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:08:01,550 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 17:08:01,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938990055] [2020-11-09 17:08:01,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:08:01,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:08:01,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [673528296] [2020-11-09 17:08:01,551 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:08:01,554 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:08:01,569 INFO L252 McrAutomatonBuilder]: Finished intersection with 66 states and 115 transitions. [2020-11-09 17:08:01,570 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:08:01,673 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:08:01,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:08:01,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:08:01,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:08:01,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:08:01,674 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 17:08:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:08:01,691 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 17:08:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:08:01,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 17:08:01,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:08:01,691 INFO L225 Difference]: With dead ends: 70 [2020-11-09 17:08:01,691 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:08:01,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 17:08:01,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:08:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:08:01,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:08:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:08:01,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 17:08:01,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:08:01,693 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:08:01,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:08:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:08:01,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:08:01,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:08:01,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:08:01 BasicIcfg [2020-11-09 17:08:01,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:08:01,703 INFO L168 Benchmark]: Toolchain (without parser) took 9966.27 ms. Allocated memory was 154.1 MB in the beginning and 224.4 MB in the end (delta: 70.3 MB). Free memory was 128.1 MB in the beginning and 149.7 MB in the end (delta: -21.5 MB). Peak memory consumption was 49.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:08:01,704 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 154.1 MB. Free memory was 126.9 MB in the beginning and 126.8 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:08:01,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.50 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 127.8 MB in the end (delta: -313.1 kB). Peak memory consumption was 25.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:08:01,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.78 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 125.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:08:01,707 INFO L168 Benchmark]: Boogie Preprocessor took 29.85 ms. Allocated memory is still 154.1 MB. Free memory was 125.7 MB in the beginning and 124.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:08:01,711 INFO L168 Benchmark]: RCFGBuilder took 593.68 ms. Allocated memory is still 154.1 MB. Free memory was 124.1 MB in the beginning and 100.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:08:01,715 INFO L168 Benchmark]: TraceAbstraction took 8490.34 ms. Allocated memory was 154.1 MB in the beginning and 224.4 MB in the end (delta: 70.3 MB). Free memory was 100.0 MB in the beginning and 149.7 MB in the end (delta: -49.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:08:01,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 154.1 MB. Free memory was 126.9 MB in the beginning and 126.8 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 758.50 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 127.8 MB in the end (delta: -313.1 kB). Peak memory consumption was 25.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 78.78 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 125.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.85 ms. Allocated memory is still 154.1 MB. Free memory was 125.7 MB in the beginning and 124.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 593.68 ms. Allocated memory is still 154.1 MB. Free memory was 124.1 MB in the beginning and 100.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8490.34 ms. Allocated memory was 154.1 MB in the beginning and 224.4 MB in the end (delta: 70.3 MB). Free memory was 100.0 MB in the beginning and 149.7 MB in the end (delta: -49.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.6s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 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 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 176 SDtfs, 160 SDslu, 275 SDs, 0 SdLazy, 133 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...