/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:09:44,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:09:44,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:09:44,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:09:44,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:09:44,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:09:44,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:09:44,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:09:44,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:09:44,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:09:44,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:09:44,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:09:44,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:09:44,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:09:44,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:09:44,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:09:44,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:09:44,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:09:44,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:09:44,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:09:44,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:09:44,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:09:44,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:09:44,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:09:44,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:09:44,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:09:44,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:09:44,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:09:44,126 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.epf [2022-02-10 22:09:44,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:09:44,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:09:44,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:09:44,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:09:44,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:09:44,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:09:44,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:09:44,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:09:44,146 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:09:44,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:09:44,146 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:09:44,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:09:44,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:09:44,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:09:44,148 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:09:44,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:09:44,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:09:44,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:09:44,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:09:44,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:09:44,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:09:44,363 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:09:44,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-02-10 22:09:44,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ee9a389/4ca59291296745469a48b6cffcc19df2/FLAGe3d1a7487 [2022-02-10 22:09:44,782 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:09:44,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-02-10 22:09:44,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ee9a389/4ca59291296745469a48b6cffcc19df2/FLAGe3d1a7487 [2022-02-10 22:09:45,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ee9a389/4ca59291296745469a48b6cffcc19df2 [2022-02-10 22:09:45,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:09:45,181 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:09:45,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:09:45,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:09:45,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:09:45,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fa21f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45, skipping insertion in model container [2022-02-10 22:09:45,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:09:45,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:09:45,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c[2826,2839] [2022-02-10 22:09:45,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:09:45,414 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:09:45,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c[2826,2839] [2022-02-10 22:09:45,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:09:45,443 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:09:45,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45 WrapperNode [2022-02-10 22:09:45,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:09:45,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:09:45,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:09:45,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:09:45,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,471 INFO L137 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-02-10 22:09:45,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:09:45,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:09:45,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:09:45,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:09:45,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:09:45,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:09:45,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:09:45,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:09:45,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (1/1) ... [2022-02-10 22:09:45,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:09:45,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:09:45,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:09:45,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:09:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:09:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:09:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:09:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:09:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:09:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 22:09:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 22:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-02-10 22:09:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-02-10 22:09:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-02-10 22:09:45,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-02-10 22:09:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:09:45,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:09:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:09:45,566 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:09:45,630 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:09:45,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:09:45,808 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:09:45,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:09:45,814 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-10 22:09:45,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:09:45 BoogieIcfgContainer [2022-02-10 22:09:45,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:09:45,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:09:45,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:09:45,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:09:45,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:09:45" (1/3) ... [2022-02-10 22:09:45,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d549035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:09:45, skipping insertion in model container [2022-02-10 22:09:45,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:09:45" (2/3) ... [2022-02-10 22:09:45,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d549035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:09:45, skipping insertion in model container [2022-02-10 22:09:45,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:09:45" (3/3) ... [2022-02-10 22:09:45,821 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2022-02-10 22:09:45,825 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:09:45,825 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:09:45,825 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:09:45,825 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:09:45,865 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,866 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,866 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,866 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,867 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,867 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,867 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,868 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,869 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,869 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,869 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,869 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,870 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,870 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,871 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,871 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,872 WARN L322 ript$VariableManager]: TermVariable |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,872 WARN L322 ript$VariableManager]: TermVariable |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,872 WARN L322 ript$VariableManager]: TermVariable |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,872 WARN L322 ript$VariableManager]: TermVariable |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,873 WARN L322 ript$VariableManager]: TermVariable |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,874 WARN L322 ript$VariableManager]: TermVariable |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,874 WARN L322 ript$VariableManager]: TermVariable |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,874 WARN L322 ript$VariableManager]: TermVariable |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,876 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,877 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,879 WARN L322 ript$VariableManager]: TermVariable |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,880 WARN L322 ript$VariableManager]: TermVariable |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,881 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,881 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,881 WARN L322 ript$VariableManager]: TermVariable |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,882 WARN L322 ript$VariableManager]: TermVariable |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,882 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,883 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,885 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,885 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:09:45,893 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-02-10 22:09:45,923 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:09:45,927 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:09:45,928 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-02-10 22:09:45,938 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 174 places, 169 transitions, 386 flow [2022-02-10 22:09:50,380 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 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) [2022-02-10 22:09:50,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 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) [2022-02-10 22:09:51,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-10 22:09:51,909 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:09:51,910 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:09:51,910 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:09:51,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:09:51,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1952224635, now seen corresponding path program 1 times [2022-02-10 22:09:51,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:09:51,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233258702] [2022-02-10 22:09:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:09:51,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:09:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:09:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:09:52,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:09:52,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233258702] [2022-02-10 22:09:52,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233258702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:09:52,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:09:52,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:09:52,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613539305] [2022-02-10 22:09:52,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:09:52,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:09:52,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:09:52,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:09:52,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:09:52,374 INFO L87 Difference]: Start difference. First operand has 97705 states, 97704 states have (on average 7.496888561369033) internal successors, (732476), 97704 states have internal predecessors, (732476), 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 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2022-02-10 22:09:54,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:09:54,431 INFO L93 Difference]: Finished difference Result 97705 states and 624075 transitions. [2022-02-10 22:09:54,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:09:54,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2022-02-10 22:09:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:09:55,990 INFO L225 Difference]: With dead ends: 97705 [2022-02-10 22:09:55,990 INFO L226 Difference]: Without dead ends: 97703 [2022-02-10 22:09:55,991 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:09:55,994 INFO L934 BasicCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:09:55,995 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:09:56,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97703 states. [2022-02-10 22:10:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97703 to 97703. [2022-02-10 22:10:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97703 states, 97702 states have (on average 6.387515096927391) internal successors, (624073), 97702 states have internal predecessors, (624073), 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) [2022-02-10 22:10:02,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97703 states to 97703 states and 624073 transitions. [2022-02-10 22:10:02,315 INFO L78 Accepts]: Start accepts. Automaton has 97703 states and 624073 transitions. Word has length 124 [2022-02-10 22:10:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:10:02,316 INFO L470 AbstractCegarLoop]: Abstraction has 97703 states and 624073 transitions. [2022-02-10 22:10:02,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2022-02-10 22:10:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 97703 states and 624073 transitions. [2022-02-10 22:10:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-10 22:10:02,785 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:10:02,786 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:10:02,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:10:02,786 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:10:02,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:10:02,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1097050563, now seen corresponding path program 1 times [2022-02-10 22:10:02,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:10:02,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013146685] [2022-02-10 22:10:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:10:02,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:10:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:10:03,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:10:03,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:10:03,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013146685] [2022-02-10 22:10:03,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013146685] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:10:03,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:10:03,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:10:03,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137227376] [2022-02-10 22:10:03,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:10:03,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:10:03,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:10:03,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:10:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:10:03,746 INFO L87 Difference]: Start difference. First operand 97703 states and 624073 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2022-02-10 22:10:07,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:10:07,722 INFO L93 Difference]: Finished difference Result 195320 states and 1247947 transitions. [2022-02-10 22:10:07,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:10:07,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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 124 [2022-02-10 22:10:07,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:10:10,576 INFO L225 Difference]: With dead ends: 195320 [2022-02-10 22:10:10,577 INFO L226 Difference]: Without dead ends: 191309 [2022-02-10 22:10:10,577 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:10:10,578 INFO L934 BasicCegarLoop]: 102 mSDtfsCounter, 161 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:10:10,578 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 504 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:10:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191309 states. [2022-02-10 22:10:18,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191309 to 122358. [2022-02-10 22:10:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122358 states, 122357 states have (on average 6.363297563686589) internal successors, (778594), 122357 states have internal predecessors, (778594), 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) [2022-02-10 22:10:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122358 states to 122358 states and 778594 transitions. [2022-02-10 22:10:20,304 INFO L78 Accepts]: Start accepts. Automaton has 122358 states and 778594 transitions. Word has length 124 [2022-02-10 22:10:20,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:10:20,308 INFO L470 AbstractCegarLoop]: Abstraction has 122358 states and 778594 transitions. [2022-02-10 22:10:20,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2022-02-10 22:10:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 122358 states and 778594 transitions. [2022-02-10 22:10:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-10 22:10:21,368 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:10:21,369 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:10:21,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:10:21,369 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:10:21,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:10:21,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1674154437, now seen corresponding path program 1 times [2022-02-10 22:10:21,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:10:21,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182071320] [2022-02-10 22:10:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:10:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:10:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:10:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:10:21,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:10:21,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182071320] [2022-02-10 22:10:21,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182071320] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:10:21,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:10:21,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:10:21,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811593749] [2022-02-10 22:10:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:10:21,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:10:21,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:10:21,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:10:21,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:10:21,670 INFO L87 Difference]: Start difference. First operand 122358 states and 778594 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2022-02-10 22:10:25,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:10:25,444 INFO L93 Difference]: Finished difference Result 191343 states and 1204582 transitions. [2022-02-10 22:10:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:10:25,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 126 [2022-02-10 22:10:25,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:10:29,274 INFO L225 Difference]: With dead ends: 191343 [2022-02-10 22:10:29,274 INFO L226 Difference]: Without dead ends: 187218 [2022-02-10 22:10:29,274 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:10:29,284 INFO L934 BasicCegarLoop]: 128 mSDtfsCounter, 162 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:10:29,286 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 428 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:10:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187218 states. [2022-02-10 22:10:38,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187218 to 141552. [2022-02-10 22:10:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141552 states, 141551 states have (on average 6.3017004471886455) internal successors, (892012), 141551 states have internal predecessors, (892012), 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) [2022-02-10 22:10:40,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141552 states to 141552 states and 892012 transitions. [2022-02-10 22:10:40,765 INFO L78 Accepts]: Start accepts. Automaton has 141552 states and 892012 transitions. Word has length 126 [2022-02-10 22:10:40,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:10:40,765 INFO L470 AbstractCegarLoop]: Abstraction has 141552 states and 892012 transitions. [2022-02-10 22:10:40,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2022-02-10 22:10:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 141552 states and 892012 transitions. [2022-02-10 22:10:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-10 22:10:41,639 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:10:41,639 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:10:41,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:10:41,640 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:10:41,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:10:41,641 INFO L85 PathProgramCache]: Analyzing trace with hash -21737079, now seen corresponding path program 1 times [2022-02-10 22:10:41,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:10:41,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145253321] [2022-02-10 22:10:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:10:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:10:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:10:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:10:41,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:10:41,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145253321] [2022-02-10 22:10:41,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145253321] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:10:41,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872569134] [2022-02-10 22:10:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:10:41,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:10:41,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:10:41,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:10:41,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:10:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:10:41,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-10 22:10:41,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:10:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:10:42,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:10:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:10:42,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872569134] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:10:42,804 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:10:42,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-02-10 22:10:42,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096457008] [2022-02-10 22:10:42,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:10:42,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:10:42,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:10:42,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:10:42,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:10:42,806 INFO L87 Difference]: Start difference. First operand 141552 states and 892012 transitions. Second operand has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 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) [2022-02-10 22:10:48,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:10:48,860 INFO L93 Difference]: Finished difference Result 302814 states and 1920155 transitions. [2022-02-10 22:10:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:10:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 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 126 [2022-02-10 22:10:48,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:10:54,460 INFO L225 Difference]: With dead ends: 302814 [2022-02-10 22:10:54,460 INFO L226 Difference]: Without dead ends: 302814 [2022-02-10 22:10:54,460 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:10:54,461 INFO L934 BasicCegarLoop]: 164 mSDtfsCounter, 565 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:10:54,461 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 674 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:10:55,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302814 states. [2022-02-10 22:11:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302814 to 177331. [2022-02-10 22:11:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177331 states, 177330 states have (on average 6.343748942649298) internal successors, (1124937), 177330 states have internal predecessors, (1124937), 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) [2022-02-10 22:11:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177331 states to 177331 states and 1124937 transitions. [2022-02-10 22:11:09,409 INFO L78 Accepts]: Start accepts. Automaton has 177331 states and 1124937 transitions. Word has length 126 [2022-02-10 22:11:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:11:09,410 INFO L470 AbstractCegarLoop]: Abstraction has 177331 states and 1124937 transitions. [2022-02-10 22:11:09,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 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) [2022-02-10 22:11:09,410 INFO L276 IsEmpty]: Start isEmpty. Operand 177331 states and 1124937 transitions. [2022-02-10 22:11:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-10 22:11:10,665 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:11:10,665 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:11:10,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 22:11:10,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:11:10,884 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:11:10,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:11:10,885 INFO L85 PathProgramCache]: Analyzing trace with hash -264954989, now seen corresponding path program 2 times [2022-02-10 22:11:10,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:11:10,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27155315] [2022-02-10 22:11:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:11:10,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:11:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:11:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:11:11,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:11:11,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27155315] [2022-02-10 22:11:11,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27155315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:11:11,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:11:11,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:11:11,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482793980] [2022-02-10 22:11:11,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:11:11,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:11:11,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:11:11,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:11:11,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:11:11,215 INFO L87 Difference]: Start difference. First operand 177331 states and 1124937 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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) [2022-02-10 22:11:16,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:11:16,053 INFO L93 Difference]: Finished difference Result 222994 states and 1414296 transitions. [2022-02-10 22:11:16,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:11:16,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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 126 [2022-02-10 22:11:16,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:11:18,967 INFO L225 Difference]: With dead ends: 222994 [2022-02-10 22:11:18,967 INFO L226 Difference]: Without dead ends: 222994 [2022-02-10 22:11:18,968 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:11:18,968 INFO L934 BasicCegarLoop]: 130 mSDtfsCounter, 262 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:11:18,968 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 499 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:11:19,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222994 states. [2022-02-10 22:11:29,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222994 to 192171. [2022-02-10 22:11:29,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192171 states, 192170 states have (on average 6.363022323983973) internal successors, (1222782), 192170 states have internal predecessors, (1222782), 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) [2022-02-10 22:11:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192171 states to 192171 states and 1222782 transitions. [2022-02-10 22:11:32,170 INFO L78 Accepts]: Start accepts. Automaton has 192171 states and 1222782 transitions. Word has length 126 [2022-02-10 22:11:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:11:32,170 INFO L470 AbstractCegarLoop]: Abstraction has 192171 states and 1222782 transitions. [2022-02-10 22:11:32,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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) [2022-02-10 22:11:32,171 INFO L276 IsEmpty]: Start isEmpty. Operand 192171 states and 1222782 transitions. [2022-02-10 22:11:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-10 22:11:33,990 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:11:33,991 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:11:33,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:11:33,991 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:11:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:11:33,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1467098239, now seen corresponding path program 1 times [2022-02-10 22:11:33,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:11:33,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669839358] [2022-02-10 22:11:33,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:11:33,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:11:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:11:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:11:34,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:11:34,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669839358] [2022-02-10 22:11:34,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669839358] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:11:34,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:11:34,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:11:34,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002150905] [2022-02-10 22:11:34,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:11:34,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:11:34,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:11:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:11:34,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:11:34,258 INFO L87 Difference]: Start difference. First operand 192171 states and 1222782 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2022-02-10 22:11:39,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:11:39,085 INFO L93 Difference]: Finished difference Result 220026 states and 1375818 transitions. [2022-02-10 22:11:39,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:11:39,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 126 [2022-02-10 22:11:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:11:42,596 INFO L225 Difference]: With dead ends: 220026 [2022-02-10 22:11:42,596 INFO L226 Difference]: Without dead ends: 214689 [2022-02-10 22:11:42,597 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:11:42,599 INFO L934 BasicCegarLoop]: 134 mSDtfsCounter, 238 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:11:42,600 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 344 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:11:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214689 states. [2022-02-10 22:11:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214689 to 192828. [2022-02-10 22:11:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192828 states, 192827 states have (on average 6.32444626530517) internal successors, (1219524), 192827 states have internal predecessors, (1219524), 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) [2022-02-10 22:11:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192828 states to 192828 states and 1219524 transitions. [2022-02-10 22:11:59,386 INFO L78 Accepts]: Start accepts. Automaton has 192828 states and 1219524 transitions. Word has length 126 [2022-02-10 22:11:59,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:11:59,386 INFO L470 AbstractCegarLoop]: Abstraction has 192828 states and 1219524 transitions. [2022-02-10 22:11:59,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2022-02-10 22:11:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand 192828 states and 1219524 transitions. [2022-02-10 22:12:01,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-10 22:12:01,080 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:12:01,080 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:12:01,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:12:01,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:12:01,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:12:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1948360897, now seen corresponding path program 1 times [2022-02-10 22:12:01,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:12:01,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069347654] [2022-02-10 22:12:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:12:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:12:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:12:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:12:01,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:12:01,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069347654] [2022-02-10 22:12:01,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069347654] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:12:01,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163134886] [2022-02-10 22:12:01,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:12:01,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:12:01,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:12:01,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:12:01,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:12:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:12:01,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-10 22:12:01,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:12:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:12:01,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:12:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:12:01,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163134886] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:12:01,784 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:12:01,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-02-10 22:12:01,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100496889] [2022-02-10 22:12:01,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:12:01,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:12:01,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:12:01,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:12:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:12:01,785 INFO L87 Difference]: Start difference. First operand 192828 states and 1219524 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 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) [2022-02-10 22:12:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:12:12,326 INFO L93 Difference]: Finished difference Result 467055 states and 2943217 transitions. [2022-02-10 22:12:12,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:12:12,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 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 126 [2022-02-10 22:12:12,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:12:18,700 INFO L225 Difference]: With dead ends: 467055 [2022-02-10 22:12:18,701 INFO L226 Difference]: Without dead ends: 467055 [2022-02-10 22:12:18,701 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:12:18,707 INFO L934 BasicCegarLoop]: 174 mSDtfsCounter, 687 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:12:18,708 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 687 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:12:20,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467055 states. [2022-02-10 22:12:42,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467055 to 225124. [2022-02-10 22:12:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225124 states, 225123 states have (on average 6.399985785548345) internal successors, (1440784), 225123 states have internal predecessors, (1440784), 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) [2022-02-10 22:12:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225124 states to 225124 states and 1440784 transitions. [2022-02-10 22:12:47,330 INFO L78 Accepts]: Start accepts. Automaton has 225124 states and 1440784 transitions. Word has length 126 [2022-02-10 22:12:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:12:47,331 INFO L470 AbstractCegarLoop]: Abstraction has 225124 states and 1440784 transitions. [2022-02-10 22:12:47,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 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) [2022-02-10 22:12:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 225124 states and 1440784 transitions. [2022-02-10 22:12:49,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-10 22:12:49,305 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:12:49,313 INFO L515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:12:49,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 22:12:49,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-10 22:12:49,536 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-10 22:12:49,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:12:49,536 INFO L85 PathProgramCache]: Analyzing trace with hash -130625145, now seen corresponding path program 2 times [2022-02-10 22:12:49,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:12:49,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729180734] [2022-02-10 22:12:49,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:12:49,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:12:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:12:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:12:49,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:12:49,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729180734] [2022-02-10 22:12:49,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729180734] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:12:49,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556536503] [2022-02-10 22:12:49,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:12:49,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:12:49,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:12:49,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:12:49,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:12:49,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 22:12:49,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:12:49,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 22:12:49,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:12:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:12:50,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:12:50,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556536503] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:12:50,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:12:50,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-02-10 22:12:50,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034537384] [2022-02-10 22:12:50,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:12:50,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:12:50,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:12:50,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:12:50,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:12:50,590 INFO L87 Difference]: Start difference. First operand 225124 states and 1440784 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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)