/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:28:52,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:28:52,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:28:52,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:28:52,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:28:52,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:28:52,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:28:52,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:28:52,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:28:52,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:28:52,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:28:52,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:28:52,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:28:52,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:28:52,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:28:52,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:28:52,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:28:52,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:28:52,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:28:52,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:28:52,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:28:52,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:28:52,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:28:52,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:28:52,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 12:28:52,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 12:28:52,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 12:28:52,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 12:28:52,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 12:28:52,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 12:28:52,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:28:52,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:28:52,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:28:52,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:28:52,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:28:52,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:28:52,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:28:52,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:28:52,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:28:52,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:28:52,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:28:52,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 12:28:52,753 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:28:52,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:28:52,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:28:52,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:28:52,755 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:28:52,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:28:52,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:28:52,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:28:52,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:28:52,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:28:52,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:28:52,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:28:52,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:28:52,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:28:52,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:28:52,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:28:52,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:28:52,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:28:52,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:28:52,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:28:52,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:28:52,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:28:52,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:28:52,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:28:52,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:28:52,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:28:52,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:28:52,764 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:28:52,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:28:52,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:28:52,765 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:28:53,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:28:53,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:28:53,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:28:53,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:28:53,249 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:28:53,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-11-12 12:28:53,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fcb401c1/01afa1f7f6bc4f1486ce65a697dbc1f9/FLAG9ddfff201 [2020-11-12 12:28:54,109 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:28:54,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2020-11-12 12:28:54,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fcb401c1/01afa1f7f6bc4f1486ce65a697dbc1f9/FLAG9ddfff201 [2020-11-12 12:28:54,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fcb401c1/01afa1f7f6bc4f1486ce65a697dbc1f9 [2020-11-12 12:28:54,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:28:54,388 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:28:54,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:28:54,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:28:54,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:28:54,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:28:54" (1/1) ... [2020-11-12 12:28:54,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fa78fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:54, skipping insertion in model container [2020-11-12 12:28:54,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:28:54" (1/1) ... [2020-11-12 12:28:54,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:28:54,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:28:54,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:28:54,854 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:28:54,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:28:55,009 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:28:55,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55 WrapperNode [2020-11-12 12:28:55,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:28:55,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:28:55,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:28:55,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:28:55,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:28:55,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:28:55,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:28:55,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:28:55,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (1/1) ... [2020-11-12 12:28:55,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:28:55,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:28:55,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:28:55,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:28:55,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (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 [2020-11-12 12:28:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:28:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:28:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:28:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:28:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:28:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:28:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:28:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:28:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:28:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:28:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:28:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:28:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:28:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:28:55,207 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:28:55,788 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:28:55,788 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:28:55,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:28:55 BoogieIcfgContainer [2020-11-12 12:28:55,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:28:55,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:28:55,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:28:55,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:28:55,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:28:54" (1/3) ... [2020-11-12 12:28:55,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584e217f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:28:55, skipping insertion in model container [2020-11-12 12:28:55,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:55" (2/3) ... [2020-11-12 12:28:55,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584e217f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:28:55, skipping insertion in model container [2020-11-12 12:28:55,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:28:55" (3/3) ... [2020-11-12 12:28:55,800 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2020-11-12 12:28:55,816 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:28:55,816 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:28:55,820 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:28:55,821 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:28:55,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,853 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,853 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,853 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,854 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,854 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,854 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,855 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,855 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,856 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,856 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,856 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,856 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,856 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,857 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,857 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,857 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,858 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,858 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,867 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,867 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:55,875 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:28:55,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:28:55,912 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:28:55,912 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:28:55,912 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:28:55,912 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:28:55,912 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:28:55,912 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:28:55,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:28:55,913 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:28:55,926 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 12:28:56,805 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:57,883 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 1074ms [2020-11-12 12:28:57,984 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:58,084 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 33527 states, 30624 states have (on average 1.1925287356321839) internal successors, (36520), 33526 states have internal predecessors, (36520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 33527 states, 30624 states have (on average 1.1925287356321839) internal successors, (36520), 33526 states have internal predecessors, (36520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:28:58,159 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:28:58,160 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:28:58,161 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:28:58,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:28:58,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1266406659, now seen corresponding path program 1 times [2020-11-12 12:28:58,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:28:58,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533425495] [2020-11-12 12:28:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:28:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:28:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:28:58,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533425495] [2020-11-12 12:28:58,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:28:58,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:28:58,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034899383] [2020-11-12 12:28:58,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:28:58,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:28:58,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:28:58,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:28:58,782 INFO L87 Difference]: Start difference. First operand has 33527 states, 30624 states have (on average 1.1925287356321839) internal successors, (36520), 33526 states have internal predecessors, (36520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:59,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:28:59,101 INFO L93 Difference]: Finished difference Result 12663 states and 14447 transitions. [2020-11-12 12:28:59,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:28:59,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-11-12 12:28:59,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:28:59,149 INFO L225 Difference]: With dead ends: 12663 [2020-11-12 12:28:59,149 INFO L226 Difference]: Without dead ends: 3710 [2020-11-12 12:28:59,152 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:28:59,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2020-11-12 12:28:59,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 3710. [2020-11-12 12:28:59,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3710 states, 3514 states have (on average 1.3042117245304496) internal successors, (4583), 3709 states have internal predecessors, (4583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:59,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3710 states to 3710 states and 4583 transitions. [2020-11-12 12:28:59,491 INFO L78 Accepts]: Start accepts. Automaton has 3710 states and 4583 transitions. Word has length 42 [2020-11-12 12:28:59,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:28:59,492 INFO L481 AbstractCegarLoop]: Abstraction has 3710 states and 4583 transitions. [2020-11-12 12:28:59,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3710 states and 4583 transitions. [2020-11-12 12:28:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:28:59,569 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:28:59,569 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:28:59,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:28:59,570 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:28:59,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:28:59,571 INFO L82 PathProgramCache]: Analyzing trace with hash -805653918, now seen corresponding path program 1 times [2020-11-12 12:28:59,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:28:59,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954901422] [2020-11-12 12:28:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:28:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:28:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:28:59,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954901422] [2020-11-12 12:28:59,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:28:59,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:28:59,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080681417] [2020-11-12 12:28:59,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:28:59,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:28:59,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:28:59,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:28:59,741 INFO L87 Difference]: Start difference. First operand 3710 states and 4583 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:28:59,967 INFO L93 Difference]: Finished difference Result 5894 states and 7333 transitions. [2020-11-12 12:28:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:28:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 12:28:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:28:59,984 INFO L225 Difference]: With dead ends: 5894 [2020-11-12 12:28:59,985 INFO L226 Difference]: Without dead ends: 2493 [2020-11-12 12:28:59,986 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:00,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-11-12 12:29:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2493. [2020-11-12 12:29:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 2353 states have (on average 1.336166595835104) internal successors, (3144), 2492 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3144 transitions. [2020-11-12 12:29:00,087 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3144 transitions. Word has length 45 [2020-11-12 12:29:00,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:00,088 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 3144 transitions. [2020-11-12 12:29:00,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3144 transitions. [2020-11-12 12:29:00,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:29:00,100 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:00,100 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:00,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:29:00,101 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:00,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:00,102 INFO L82 PathProgramCache]: Analyzing trace with hash 821880729, now seen corresponding path program 1 times [2020-11-12 12:29:00,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:00,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280080779] [2020-11-12 12:29:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:00,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280080779] [2020-11-12 12:29:00,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:00,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:29:00,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209300500] [2020-11-12 12:29:00,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:29:00,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:00,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:29:00,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:29:00,339 INFO L87 Difference]: Start difference. First operand 2493 states and 3144 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:00,503 INFO L93 Difference]: Finished difference Result 2763 states and 3326 transitions. [2020-11-12 12:29:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:29:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 12:29:00,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:00,518 INFO L225 Difference]: With dead ends: 2763 [2020-11-12 12:29:00,518 INFO L226 Difference]: Without dead ends: 2335 [2020-11-12 12:29:00,519 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2020-11-12 12:29:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 2335. [2020-11-12 12:29:00,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2203 states have (on average 1.3104857013163866) internal successors, (2887), 2334 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 2887 transitions. [2020-11-12 12:29:00,596 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 2887 transitions. Word has length 47 [2020-11-12 12:29:00,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:00,597 INFO L481 AbstractCegarLoop]: Abstraction has 2335 states and 2887 transitions. [2020-11-12 12:29:00,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 2887 transitions. [2020-11-12 12:29:00,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:29:00,601 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:00,602 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:00,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:29:00,602 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:00,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:00,603 INFO L82 PathProgramCache]: Analyzing trace with hash 296373738, now seen corresponding path program 1 times [2020-11-12 12:29:00,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:00,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162135998] [2020-11-12 12:29:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:00,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162135998] [2020-11-12 12:29:00,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:00,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:00,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264723178] [2020-11-12 12:29:00,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:00,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:00,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:00,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:00,740 INFO L87 Difference]: Start difference. First operand 2335 states and 2887 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:00,909 INFO L93 Difference]: Finished difference Result 2138 states and 2527 transitions. [2020-11-12 12:29:00,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:29:00,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-11-12 12:29:00,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:00,918 INFO L225 Difference]: With dead ends: 2138 [2020-11-12 12:29:00,918 INFO L226 Difference]: Without dead ends: 1587 [2020-11-12 12:29:00,919 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:29:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2020-11-12 12:29:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2020-11-12 12:29:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1497 states have (on average 1.2271209084836339) internal successors, (1837), 1586 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 1837 transitions. [2020-11-12 12:29:00,976 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 1837 transitions. Word has length 48 [2020-11-12 12:29:00,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:00,976 INFO L481 AbstractCegarLoop]: Abstraction has 1587 states and 1837 transitions. [2020-11-12 12:29:00,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 1837 transitions. [2020-11-12 12:29:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:29:00,980 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:00,981 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:00,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:29:00,981 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:00,982 INFO L82 PathProgramCache]: Analyzing trace with hash 115705963, now seen corresponding path program 1 times [2020-11-12 12:29:00,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:00,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211214194] [2020-11-12 12:29:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:01,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211214194] [2020-11-12 12:29:01,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:01,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:29:01,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138274988] [2020-11-12 12:29:01,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:29:01,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:01,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:29:01,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:29:01,122 INFO L87 Difference]: Start difference. First operand 1587 states and 1837 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:01,300 INFO L93 Difference]: Finished difference Result 1039 states and 1190 transitions. [2020-11-12 12:29:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:29:01,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-12 12:29:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:01,304 INFO L225 Difference]: With dead ends: 1039 [2020-11-12 12:29:01,304 INFO L226 Difference]: Without dead ends: 538 [2020-11-12 12:29:01,305 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:29:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-11-12 12:29:01,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-11-12 12:29:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 511 states have (on average 1.1272015655577299) internal successors, (576), 537 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 576 transitions. [2020-11-12 12:29:01,320 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 576 transitions. Word has length 50 [2020-11-12 12:29:01,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:01,321 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 576 transitions. [2020-11-12 12:29:01,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,321 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 576 transitions. [2020-11-12 12:29:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:29:01,323 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:01,323 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:01,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:29:01,323 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1879306967, now seen corresponding path program 1 times [2020-11-12 12:29:01,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:01,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811260019] [2020-11-12 12:29:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:01,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811260019] [2020-11-12 12:29:01,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:01,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:01,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769317496] [2020-11-12 12:29:01,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:01,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:01,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:01,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:01,478 INFO L87 Difference]: Start difference. First operand 538 states and 576 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:01,589 INFO L93 Difference]: Finished difference Result 840 states and 881 transitions. [2020-11-12 12:29:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-12 12:29:01,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:01,593 INFO L225 Difference]: With dead ends: 840 [2020-11-12 12:29:01,593 INFO L226 Difference]: Without dead ends: 459 [2020-11-12 12:29:01,594 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:01,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-11-12 12:29:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2020-11-12 12:29:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 432 states have (on average 1.0810185185185186) internal successors, (467), 458 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 467 transitions. [2020-11-12 12:29:01,607 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 467 transitions. Word has length 54 [2020-11-12 12:29:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:01,607 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 467 transitions. [2020-11-12 12:29:01,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 467 transitions. [2020-11-12 12:29:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:29:01,609 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:01,609 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:29:01,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:29:01,610 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:01,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:01,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1783984121, now seen corresponding path program 2 times [2020-11-12 12:29:01,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:01,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365728266] [2020-11-12 12:29:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:01,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365728266] [2020-11-12 12:29:01,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:01,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:01,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270952915] [2020-11-12 12:29:01,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:01,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:01,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:01,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:01,763 INFO L87 Difference]: Start difference. First operand 459 states and 467 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:01,864 INFO L93 Difference]: Finished difference Result 351 states and 359 transitions. [2020-11-12 12:29:01,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:01,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-12 12:29:01,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:01,865 INFO L225 Difference]: With dead ends: 351 [2020-11-12 12:29:01,865 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:29:01,866 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:01,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:29:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:29:01,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:29:01,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-12 12:29:01,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:01,867 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:29:01,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:29:01,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:29:01,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:29:01,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:29:01 BasicIcfg [2020-11-12 12:29:01,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:29:01,876 INFO L168 Benchmark]: Toolchain (without parser) took 7492.01 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 271.6 MB in the beginning and 1.3 GB in the end (delta: -993.3 MB). Peak memory consumption was 89.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:01,877 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.4 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:29:01,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.61 ms. Allocated memory is still 302.0 MB. Free memory was 271.0 MB in the beginning and 263.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:01,878 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.02 ms. Allocated memory is still 302.0 MB. Free memory was 263.7 MB in the beginning and 261.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:01,879 INFO L168 Benchmark]: Boogie Preprocessor took 28.55 ms. Allocated memory is still 302.0 MB. Free memory was 261.6 MB in the beginning and 260.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:29:01,880 INFO L168 Benchmark]: RCFGBuilder took 669.82 ms. Allocated memory is still 302.0 MB. Free memory was 260.2 MB in the beginning and 275.7 MB in the end (delta: -15.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:01,881 INFO L168 Benchmark]: TraceAbstraction took 6081.07 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 275.7 MB in the beginning and 1.3 GB in the end (delta: -989.1 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:01,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.4 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 621.61 ms. Allocated memory is still 302.0 MB. Free memory was 271.0 MB in the beginning and 263.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 78.02 ms. Allocated memory is still 302.0 MB. Free memory was 263.7 MB in the beginning and 261.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.55 ms. Allocated memory is still 302.0 MB. Free memory was 261.6 MB in the beginning and 260.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 669.82 ms. Allocated memory is still 302.0 MB. Free memory was 260.2 MB in the beginning and 275.7 MB in the end (delta: -15.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6081.07 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 275.7 MB in the beginning and 1.3 GB in the end (delta: -989.1 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 460 SDtfs, 567 SDslu, 1703 SDs, 0 SdLazy, 223 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33527occurred 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: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 40081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...