/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/popl20-bad-counter-queue2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:04:53,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:04:53,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:04:53,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 14:04:53,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 14:04:53,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 14:04:53,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 14:04:53,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 14:04:53,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 14:04:53,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 14:04:53,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 14:04:53,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 14:04:53,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 14:04:53,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 14:04:53,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 14:04:53,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 14:04:53,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 14:04:53,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 14:04:53,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 14:04:53,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 14:04:53,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 14:04:53,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 14:04:53,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 14:04:53,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 14:04:53,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 14:04:53,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:04:53,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:04:53,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:04:53,589 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 [2022-03-15 14:04:53,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:04:53,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:04:53,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:04:53,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:04:53,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:04:53,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:04:53,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:04:53,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:04:53,614 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:04:53,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:04:53,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:04:53,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:04:53,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:04:53,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:04:53,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:04:53,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:04:53,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:04:53,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:04:53,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:04:53,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:04:53,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:04:53,789 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:04:53,790 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:04:53,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c [2022-03-15 14:04:53,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd95f41af/ef3b77efebe444e8a173bd5b55b0cdda/FLAG63eb4cb61 [2022-03-15 14:04:54,140 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:04:54,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c [2022-03-15 14:04:54,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd95f41af/ef3b77efebe444e8a173bd5b55b0cdda/FLAG63eb4cb61 [2022-03-15 14:04:54,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd95f41af/ef3b77efebe444e8a173bd5b55b0cdda [2022-03-15 14:04:54,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:04:54,560 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:04:54,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:04:54,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:04:54,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:04:54,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1bd920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54, skipping insertion in model container [2022-03-15 14:04:54,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:04:54,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:04:54,704 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/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-03-15 14:04:54,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:04:54,716 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:04:54,727 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/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-03-15 14:04:54,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:04:54,738 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:04:54,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54 WrapperNode [2022-03-15 14:04:54,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:04:54,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:04:54,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:04:54,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:04:54,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,763 INFO L137 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 138 [2022-03-15 14:04:54,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:04:54,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:04:54,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:04:54,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:04:54,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:04:54,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:04:54,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:04:54,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:04:54,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (1/1) ... [2022-03-15 14:04:54,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:04:54,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:04:54,812 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) [2022-03-15 14:04:54,820 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 [2022-03-15 14:04:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:04:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:04:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:04:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:04:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:04:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:04:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:04:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:04:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:04:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:04:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:04:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 14:04:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:04:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:04:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:04:54,845 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 14:04:54,903 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:04:54,904 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:04:55,129 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:04:55,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:04:55,208 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-15 14:04:55,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:04:55 BoogieIcfgContainer [2022-03-15 14:04:55,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:04:55,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:04:55,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:04:55,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:04:55,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:04:54" (1/3) ... [2022-03-15 14:04:55,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6780ecd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:04:55, skipping insertion in model container [2022-03-15 14:04:55,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:04:54" (2/3) ... [2022-03-15 14:04:55,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6780ecd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:04:55, skipping insertion in model container [2022-03-15 14:04:55,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:04:55" (3/3) ... [2022-03-15 14:04:55,214 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue2.wvr.c [2022-03-15 14:04:55,217 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:04:55,217 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:04:55,217 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:04:55,217 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:04:55,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:04:55,276 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 14:04:55,303 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:04:55,308 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 14:04:55,308 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 14:04:55,315 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 117 transitions, 250 flow [2022-03-15 14:04:55,355 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 474 states, 473 states have (on average 2.553911205073996) internal successors, (1208), 473 states have internal predecessors, (1208), 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) [2022-03-15 14:04:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 474 states, 473 states have (on average 2.553911205073996) internal successors, (1208), 473 states have internal predecessors, (1208), 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) [2022-03-15 14:04:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-15 14:04:55,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:04:55,370 INFO L514 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] [2022-03-15 14:04:55,371 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:04:55,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:04:55,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1042227018, now seen corresponding path program 1 times [2022-03-15 14:04:55,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:04:55,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078600069] [2022-03-15 14:04:55,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:55,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:04:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:04:55,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:04:55,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078600069] [2022-03-15 14:04:55,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078600069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:04:55,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:04:55,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 14:04:55,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231024086] [2022-03-15 14:04:55,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:04:55,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 14:04:55,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:04:55,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 14:04:55,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:04:55,588 INFO L87 Difference]: Start difference. First operand has 474 states, 473 states have (on average 2.553911205073996) internal successors, (1208), 473 states have internal predecessors, (1208), 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 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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) [2022-03-15 14:04:55,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:04:55,622 INFO L93 Difference]: Finished difference Result 474 states and 1123 transitions. [2022-03-15 14:04:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 14:04:55,624 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2022-03-15 14:04:55,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:04:55,633 INFO L225 Difference]: With dead ends: 474 [2022-03-15 14:04:55,633 INFO L226 Difference]: Without dead ends: 471 [2022-03-15 14:04:55,634 INFO L932 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 [2022-03-15 14:04:55,636 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:04:55,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:04:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-03-15 14:04:55,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2022-03-15 14:04:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 2.382978723404255) internal successors, (1120), 470 states have internal predecessors, (1120), 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) [2022-03-15 14:04:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 1120 transitions. [2022-03-15 14:04:55,695 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 1120 transitions. Word has length 80 [2022-03-15 14:04:55,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:04:55,696 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 1120 transitions. [2022-03-15 14:04:55,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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) [2022-03-15 14:04:55,696 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 1120 transitions. [2022-03-15 14:04:55,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-15 14:04:55,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:04:55,700 INFO L514 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] [2022-03-15 14:04:55,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:04:55,700 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:04:55,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:04:55,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1132265463, now seen corresponding path program 1 times [2022-03-15 14:04:55,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:04:55,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122337964] [2022-03-15 14:04:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:55,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:04:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:55,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:04:55,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:04:55,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122337964] [2022-03-15 14:04:55,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122337964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:04:55,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:04:55,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:04:55,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004457952] [2022-03-15 14:04:55,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:04:55,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:04:55,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:04:55,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:04:55,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:04:55,880 INFO L87 Difference]: Start difference. First operand 471 states and 1120 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-03-15 14:04:55,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:04:55,963 INFO L93 Difference]: Finished difference Result 665 states and 1607 transitions. [2022-03-15 14:04:55,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:04:55,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2022-03-15 14:04:55,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:04:55,967 INFO L225 Difference]: With dead ends: 665 [2022-03-15 14:04:55,968 INFO L226 Difference]: Without dead ends: 614 [2022-03-15 14:04:55,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:04:55,969 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 13 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:04:55,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 297 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:04:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-03-15 14:04:55,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 561. [2022-03-15 14:04:55,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 560 states have (on average 2.4017857142857144) internal successors, (1345), 560 states have internal predecessors, (1345), 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) [2022-03-15 14:04:55,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 1345 transitions. [2022-03-15 14:04:55,996 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 1345 transitions. Word has length 80 [2022-03-15 14:04:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:04:55,996 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 1345 transitions. [2022-03-15 14:04:55,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-03-15 14:04:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 1345 transitions. [2022-03-15 14:04:55,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-15 14:04:55,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:04:55,999 INFO L514 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] [2022-03-15 14:04:55,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:04:55,999 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:04:55,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:04:56,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1589233609, now seen corresponding path program 1 times [2022-03-15 14:04:56,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:04:56,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553417805] [2022-03-15 14:04:56,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:56,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:04:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:04:56,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:04:56,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553417805] [2022-03-15 14:04:56,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553417805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:04:56,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:04:56,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 14:04:56,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838115427] [2022-03-15 14:04:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:04:56,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:04:56,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:04:56,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:04:56,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:04:56,139 INFO L87 Difference]: Start difference. First operand 561 states and 1345 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-03-15 14:04:56,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:04:56,255 INFO L93 Difference]: Finished difference Result 908 states and 2126 transitions. [2022-03-15 14:04:56,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 14:04:56,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2022-03-15 14:04:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:04:56,269 INFO L225 Difference]: With dead ends: 908 [2022-03-15 14:04:56,269 INFO L226 Difference]: Without dead ends: 860 [2022-03-15 14:04:56,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:04:56,276 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 288 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:04:56,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 302 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:04:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-03-15 14:04:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 717. [2022-03-15 14:04:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 2.3854748603351954) internal successors, (1708), 716 states have internal predecessors, (1708), 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) [2022-03-15 14:04:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1708 transitions. [2022-03-15 14:04:56,298 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1708 transitions. Word has length 85 [2022-03-15 14:04:56,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:04:56,299 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 1708 transitions. [2022-03-15 14:04:56,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-03-15 14:04:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1708 transitions. [2022-03-15 14:04:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-15 14:04:56,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:04:56,301 INFO L514 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] [2022-03-15 14:04:56,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:04:56,302 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:04:56,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:04:56,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1182158007, now seen corresponding path program 1 times [2022-03-15 14:04:56,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:04:56,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691281307] [2022-03-15 14:04:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:56,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:04:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:04:56,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:04:56,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691281307] [2022-03-15 14:04:56,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691281307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:04:56,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:04:56,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 14:04:56,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110758131] [2022-03-15 14:04:56,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:04:56,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:04:56,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:04:56,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:04:56,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:04:56,406 INFO L87 Difference]: Start difference. First operand 717 states and 1708 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-03-15 14:04:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:04:56,483 INFO L93 Difference]: Finished difference Result 628 states and 1461 transitions. [2022-03-15 14:04:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 14:04:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2022-03-15 14:04:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:04:56,486 INFO L225 Difference]: With dead ends: 628 [2022-03-15 14:04:56,486 INFO L226 Difference]: Without dead ends: 567 [2022-03-15 14:04:56,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:04:56,494 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 224 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:04:56,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 297 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:04:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-15 14:04:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 562. [2022-03-15 14:04:56,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.3992869875222818) internal successors, (1346), 561 states have internal predecessors, (1346), 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) [2022-03-15 14:04:56,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1346 transitions. [2022-03-15 14:04:56,507 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1346 transitions. Word has length 85 [2022-03-15 14:04:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:04:56,507 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1346 transitions. [2022-03-15 14:04:56,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-03-15 14:04:56,508 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1346 transitions. [2022-03-15 14:04:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 14:04:56,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:04:56,510 INFO L514 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] [2022-03-15 14:04:56,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 14:04:56,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:04:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:04:56,511 INFO L85 PathProgramCache]: Analyzing trace with hash -568628832, now seen corresponding path program 1 times [2022-03-15 14:04:56,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:04:56,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627725948] [2022-03-15 14:04:56,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:56,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:04:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:04:56,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:04:56,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627725948] [2022-03-15 14:04:56,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627725948] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:04:56,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101447385] [2022-03-15 14:04:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:56,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:04:56,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:04:56,604 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) [2022-03-15 14:04:56,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 14:04:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:56,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-15 14:04:56,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:04:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:04:56,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:04:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:04:57,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101447385] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 14:04:57,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 14:04:57,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-15 14:04:57,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338853843] [2022-03-15 14:04:57,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:04:57,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:04:57,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:04:57,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:04:57,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:04:57,096 INFO L87 Difference]: Start difference. First operand 562 states and 1346 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-03-15 14:04:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:04:57,158 INFO L93 Difference]: Finished difference Result 546 states and 1320 transitions. [2022-03-15 14:04:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:04:57,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2022-03-15 14:04:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:04:57,161 INFO L225 Difference]: With dead ends: 546 [2022-03-15 14:04:57,161 INFO L226 Difference]: Without dead ends: 546 [2022-03-15 14:04:57,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-15 14:04:57,162 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 130 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:04:57,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 278 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:04:57,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-03-15 14:04:57,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 514. [2022-03-15 14:04:57,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 513 states have (on average 2.401559454191033) internal successors, (1232), 513 states have internal predecessors, (1232), 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) [2022-03-15 14:04:57,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1232 transitions. [2022-03-15 14:04:57,173 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1232 transitions. Word has length 92 [2022-03-15 14:04:57,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:04:57,174 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 1232 transitions. [2022-03-15 14:04:57,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-03-15 14:04:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1232 transitions. [2022-03-15 14:04:57,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 14:04:57,180 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:04:57,180 INFO L514 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] [2022-03-15 14:04:57,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 14:04:57,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:04:57,399 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:04:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:04:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash -161553230, now seen corresponding path program 1 times [2022-03-15 14:04:57,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:04:57,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802263585] [2022-03-15 14:04:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:04:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:04:57,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:04:57,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802263585] [2022-03-15 14:04:57,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802263585] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:04:57,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128355378] [2022-03-15 14:04:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:57,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:04:57,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:04:57,492 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) [2022-03-15 14:04:57,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 14:04:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:57,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-15 14:04:57,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:04:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:04:57,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:04:57,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:04:57,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128355378] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 14:04:57,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 14:04:57,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-15 14:04:57,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291800108] [2022-03-15 14:04:57,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:04:57,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:04:57,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:04:57,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:04:57,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:04:57,870 INFO L87 Difference]: Start difference. First operand 514 states and 1232 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-03-15 14:04:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:04:57,920 INFO L93 Difference]: Finished difference Result 557 states and 1348 transitions. [2022-03-15 14:04:57,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:04:57,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2022-03-15 14:04:57,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:04:57,922 INFO L225 Difference]: With dead ends: 557 [2022-03-15 14:04:57,922 INFO L226 Difference]: Without dead ends: 557 [2022-03-15 14:04:57,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-15 14:04:57,924 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 178 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:04:57,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 256 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:04:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-03-15 14:04:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2022-03-15 14:04:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 2.4244604316546763) internal successors, (1348), 556 states have internal predecessors, (1348), 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) [2022-03-15 14:04:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1348 transitions. [2022-03-15 14:04:57,934 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1348 transitions. Word has length 92 [2022-03-15 14:04:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:04:57,934 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 1348 transitions. [2022-03-15 14:04:57,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-03-15 14:04:57,934 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1348 transitions. [2022-03-15 14:04:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-15 14:04:57,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:04:57,936 INFO L514 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] [2022-03-15 14:04:57,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 14:04:58,147 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,SelfDestructingSolverStorable5 [2022-03-15 14:04:58,148 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:04:58,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:04:58,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1927231748, now seen corresponding path program 1 times [2022-03-15 14:04:58,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:04:58,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76157406] [2022-03-15 14:04:58,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:58,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:04:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:04:58,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:04:58,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76157406] [2022-03-15 14:04:58,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76157406] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:04:58,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412984921] [2022-03-15 14:04:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:04:58,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:04:58,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:04:58,442 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) [2022-03-15 14:04:58,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 14:04:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:04:58,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 59 conjunts are in the unsatisfiable core [2022-03-15 14:04:58,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:04:58,558 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:04:58,632 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:04:58,632 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:04:58,811 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-03-15 14:04:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:04:58,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:04:58,947 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_114 (Array Int Int))) (= (+ c_~counter~0 (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_114) c_~A~0.base) c_~A~0.offset))) 0)) is different from false [2022-03-15 14:04:59,000 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:04:59,001 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 40 [2022-03-15 14:04:59,004 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-03-15 14:04:59,427 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-03-15 14:04:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:04:59,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412984921] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:04:59,443 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:04:59,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 27 [2022-03-15 14:04:59,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248431507] [2022-03-15 14:04:59,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:04:59,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-15 14:04:59,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:04:59,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-15 14:04:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=569, Unknown=1, NotChecked=48, Total=702 [2022-03-15 14:04:59,445 INFO L87 Difference]: Start difference. First operand 557 states and 1348 transitions. Second operand has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 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) [2022-03-15 14:05:00,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:00,011 INFO L93 Difference]: Finished difference Result 1022 states and 2551 transitions. [2022-03-15 14:05:00,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 14:05:00,012 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 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 97 [2022-03-15 14:05:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:00,016 INFO L225 Difference]: With dead ends: 1022 [2022-03-15 14:05:00,016 INFO L226 Difference]: Without dead ends: 971 [2022-03-15 14:05:00,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 181 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=260, Invalid=1465, Unknown=1, NotChecked=80, Total=1806 [2022-03-15 14:05:00,017 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 328 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:00,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1697 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 634 Invalid, 0 Unknown, 177 Unchecked, 0.2s Time] [2022-03-15 14:05:00,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-03-15 14:05:00,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 863. [2022-03-15 14:05:00,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 2.491879350348028) internal successors, (2148), 862 states have internal predecessors, (2148), 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) [2022-03-15 14:05:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 2148 transitions. [2022-03-15 14:05:00,036 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 2148 transitions. Word has length 97 [2022-03-15 14:05:00,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:00,037 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 2148 transitions. [2022-03-15 14:05:00,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 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) [2022-03-15 14:05:00,038 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 2148 transitions. [2022-03-15 14:05:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-15 14:05:00,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:00,040 INFO L514 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] [2022-03-15 14:05:00,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 14:05:00,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:00,255 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:00,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1540215068, now seen corresponding path program 2 times [2022-03-15 14:05:00,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:00,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206940361] [2022-03-15 14:05:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:05:00,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:00,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206940361] [2022-03-15 14:05:00,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206940361] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:00,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154692919] [2022-03-15 14:05:00,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:05:00,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:00,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:00,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:00,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 14:05:00,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:05:00,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:05:00,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-15 14:05:00,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:01,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:05:01,124 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:05:01,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2022-03-15 14:05:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:01,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154692919] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:05:01,283 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:05:01,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 8] total 27 [2022-03-15 14:05:01,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662113603] [2022-03-15 14:05:01,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:05:01,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-15 14:05:01,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:05:01,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-15 14:05:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:05:01,286 INFO L87 Difference]: Start difference. First operand 863 states and 2148 transitions. Second operand has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 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) [2022-03-15 14:05:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:01,771 INFO L93 Difference]: Finished difference Result 1234 states and 3131 transitions. [2022-03-15 14:05:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 14:05:01,772 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 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 97 [2022-03-15 14:05:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:01,777 INFO L225 Difference]: With dead ends: 1234 [2022-03-15 14:05:01,777 INFO L226 Difference]: Without dead ends: 1183 [2022-03-15 14:05:01,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=233, Invalid=1249, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 14:05:01,778 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 284 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:01,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1418 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:05:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-03-15 14:05:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 935. [2022-03-15 14:05:01,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 2.5117773019271947) internal successors, (2346), 934 states have internal predecessors, (2346), 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) [2022-03-15 14:05:01,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 2346 transitions. [2022-03-15 14:05:01,798 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 2346 transitions. Word has length 97 [2022-03-15 14:05:01,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:01,798 INFO L470 AbstractCegarLoop]: Abstraction has 935 states and 2346 transitions. [2022-03-15 14:05:01,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 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) [2022-03-15 14:05:01,798 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 2346 transitions. [2022-03-15 14:05:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-15 14:05:01,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:01,800 INFO L514 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] [2022-03-15 14:05:01,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 14:05:02,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:02,018 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:02,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:02,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1582262424, now seen corresponding path program 3 times [2022-03-15 14:05:02,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:02,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403702913] [2022-03-15 14:05:02,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:02,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:02,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:02,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403702913] [2022-03-15 14:05:02,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403702913] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:02,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769268164] [2022-03-15 14:05:02,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:05:02,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:02,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:02,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:02,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 14:05:02,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:05:02,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:05:02,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-15 14:05:02,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:02,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:02,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:05:02,615 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:05:02,615 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-03-15 14:05:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:02,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769268164] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:05:02,737 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:05:02,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 8] total 19 [2022-03-15 14:05:02,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018804175] [2022-03-15 14:05:02,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:05:02,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 14:05:02,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:05:02,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 14:05:02,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-15 14:05:02,738 INFO L87 Difference]: Start difference. First operand 935 states and 2346 transitions. Second operand has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 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) [2022-03-15 14:05:03,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:03,061 INFO L93 Difference]: Finished difference Result 1489 states and 3832 transitions. [2022-03-15 14:05:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 14:05:03,062 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 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 97 [2022-03-15 14:05:03,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:03,067 INFO L225 Difference]: With dead ends: 1489 [2022-03-15 14:05:03,067 INFO L226 Difference]: Without dead ends: 1438 [2022-03-15 14:05:03,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2022-03-15 14:05:03,068 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 199 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:03,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 1481 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:05:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2022-03-15 14:05:03,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 947. [2022-03-15 14:05:03,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 2.514799154334038) internal successors, (2379), 946 states have internal predecessors, (2379), 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) [2022-03-15 14:05:03,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 2379 transitions. [2022-03-15 14:05:03,086 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 2379 transitions. Word has length 97 [2022-03-15 14:05:03,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:03,086 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 2379 transitions. [2022-03-15 14:05:03,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 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) [2022-03-15 14:05:03,086 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 2379 transitions. [2022-03-15 14:05:03,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-15 14:05:03,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:03,088 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:05:03,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 14:05:03,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:03,301 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:03,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash -757255412, now seen corresponding path program 4 times [2022-03-15 14:05:03,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:03,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439951244] [2022-03-15 14:05:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:03,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:03,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:03,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439951244] [2022-03-15 14:05:03,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439951244] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:03,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463378398] [2022-03-15 14:05:03,388 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:05:03,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:03,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:03,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:03,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 14:05:03,450 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:05:03,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:05:03,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 14:05:03,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:03,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:05:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:05:03,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463378398] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:05:03,923 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:05:03,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-15 14:05:03,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801515024] [2022-03-15 14:05:03,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:05:03,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-15 14:05:03,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:05:03,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-15 14:05:03,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:05:03,924 INFO L87 Difference]: Start difference. First operand 947 states and 2379 transitions. Second operand has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 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) [2022-03-15 14:05:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:04,196 INFO L93 Difference]: Finished difference Result 1766 states and 4423 transitions. [2022-03-15 14:05:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:05:04,197 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 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 102 [2022-03-15 14:05:04,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:04,202 INFO L225 Difference]: With dead ends: 1766 [2022-03-15 14:05:04,202 INFO L226 Difference]: Without dead ends: 1682 [2022-03-15 14:05:04,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 14:05:04,203 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 759 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:04,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 1227 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:05:04,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-03-15 14:05:04,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1425. [2022-03-15 14:05:04,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 2.552668539325843) internal successors, (3635), 1424 states have internal predecessors, (3635), 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) [2022-03-15 14:05:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 3635 transitions. [2022-03-15 14:05:04,228 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 3635 transitions. Word has length 102 [2022-03-15 14:05:04,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:04,229 INFO L470 AbstractCegarLoop]: Abstraction has 1425 states and 3635 transitions. [2022-03-15 14:05:04,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 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) [2022-03-15 14:05:04,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 3635 transitions. [2022-03-15 14:05:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-15 14:05:04,231 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:04,232 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:05:04,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 14:05:04,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:04,443 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:04,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1453275150, now seen corresponding path program 5 times [2022-03-15 14:05:04,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:04,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947067709] [2022-03-15 14:05:04,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:04,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:05:04,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:04,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947067709] [2022-03-15 14:05:04,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947067709] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:04,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149900631] [2022-03-15 14:05:04,514 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:05:04,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:04,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:04,520 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:04,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 14:05:04,587 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-03-15 14:05:04,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:05:04,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 14:05:04,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:04,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:05:04,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:05:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:05:05,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149900631] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:05:05,012 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:05:05,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-15 14:05:05,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321028410] [2022-03-15 14:05:05,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:05:05,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-15 14:05:05,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:05:05,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-15 14:05:05,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:05:05,013 INFO L87 Difference]: Start difference. First operand 1425 states and 3635 transitions. Second operand has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 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) [2022-03-15 14:05:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:05,258 INFO L93 Difference]: Finished difference Result 1329 states and 3256 transitions. [2022-03-15 14:05:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:05:05,259 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 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 102 [2022-03-15 14:05:05,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:05,262 INFO L225 Difference]: With dead ends: 1329 [2022-03-15 14:05:05,262 INFO L226 Difference]: Without dead ends: 959 [2022-03-15 14:05:05,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 14:05:05,263 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 762 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:05,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 1042 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:05:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-03-15 14:05:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 954. [2022-03-15 14:05:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 953 states have (on average 2.503672612801679) internal successors, (2386), 953 states have internal predecessors, (2386), 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) [2022-03-15 14:05:05,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 2386 transitions. [2022-03-15 14:05:05,278 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 2386 transitions. Word has length 102 [2022-03-15 14:05:05,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:05,278 INFO L470 AbstractCegarLoop]: Abstraction has 954 states and 2386 transitions. [2022-03-15 14:05:05,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 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) [2022-03-15 14:05:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 2386 transitions. [2022-03-15 14:05:05,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 14:05:05,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:05,281 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:05:05,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-15 14:05:05,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:05,497 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:05,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash -960110397, now seen corresponding path program 6 times [2022-03-15 14:05:05,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:05,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207583362] [2022-03-15 14:05:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:05,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:05:05,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:05,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207583362] [2022-03-15 14:05:05,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207583362] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:05,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077545004] [2022-03-15 14:05:05,586 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:05:05,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:05,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:05,588 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:05,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 14:05:05,661 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-03-15 14:05:05,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:05:05,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 14:05:05,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-15 14:05:05,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:05:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-15 14:05:05,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077545004] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:05:05,967 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:05:05,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 22 [2022-03-15 14:05:05,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33605984] [2022-03-15 14:05:05,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:05:05,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-15 14:05:05,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:05:05,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-15 14:05:05,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:05:05,969 INFO L87 Difference]: Start difference. First operand 954 states and 2386 transitions. Second operand has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 22 states have internal predecessors, (184), 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) [2022-03-15 14:05:07,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:07,231 INFO L93 Difference]: Finished difference Result 1508 states and 3804 transitions. [2022-03-15 14:05:07,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 14:05:07,232 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 22 states have internal predecessors, (184), 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 109 [2022-03-15 14:05:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:07,237 INFO L225 Difference]: With dead ends: 1508 [2022-03-15 14:05:07,237 INFO L226 Difference]: Without dead ends: 1508 [2022-03-15 14:05:07,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1028, Invalid=3528, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 14:05:07,238 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 757 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:07,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [757 Valid, 2173 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:05:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-03-15 14:05:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 779. [2022-03-15 14:05:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 778 states have (on average 2.487146529562982) internal successors, (1935), 778 states have internal predecessors, (1935), 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) [2022-03-15 14:05:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1935 transitions. [2022-03-15 14:05:07,255 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1935 transitions. Word has length 109 [2022-03-15 14:05:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:07,256 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 1935 transitions. [2022-03-15 14:05:07,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 22 states have internal predecessors, (184), 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) [2022-03-15 14:05:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1935 transitions. [2022-03-15 14:05:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-15 14:05:07,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:07,258 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:05:07,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-15 14:05:07,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-15 14:05:07,472 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:07,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:07,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1656130135, now seen corresponding path program 7 times [2022-03-15 14:05:07,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:07,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692745227] [2022-03-15 14:05:07,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:07,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-15 14:05:07,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:07,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692745227] [2022-03-15 14:05:07,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692745227] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:07,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803480057] [2022-03-15 14:05:07,551 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 14:05:07,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:07,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:07,552 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:07,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 14:05:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:07,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 14:05:07,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-15 14:05:07,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:05:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-15 14:05:08,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803480057] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:05:08,152 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:05:08,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-15 14:05:08,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093550811] [2022-03-15 14:05:08,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:05:08,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-15 14:05:08,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:05:08,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-15 14:05:08,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:05:08,154 INFO L87 Difference]: Start difference. First operand 779 states and 1935 transitions. Second operand has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 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) [2022-03-15 14:05:08,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:08,401 INFO L93 Difference]: Finished difference Result 1307 states and 3351 transitions. [2022-03-15 14:05:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 14:05:08,402 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 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 109 [2022-03-15 14:05:08,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:08,406 INFO L225 Difference]: With dead ends: 1307 [2022-03-15 14:05:08,406 INFO L226 Difference]: Without dead ends: 1307 [2022-03-15 14:05:08,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=317, Invalid=943, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 14:05:08,406 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 462 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:08,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 1083 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:05:08,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2022-03-15 14:05:08,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1109. [2022-03-15 14:05:08,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1108 states have (on average 2.545126353790614) internal successors, (2820), 1108 states have internal predecessors, (2820), 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) [2022-03-15 14:05:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 2820 transitions. [2022-03-15 14:05:08,424 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 2820 transitions. Word has length 109 [2022-03-15 14:05:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:08,424 INFO L470 AbstractCegarLoop]: Abstraction has 1109 states and 2820 transitions. [2022-03-15 14:05:08,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 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) [2022-03-15 14:05:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 2820 transitions. [2022-03-15 14:05:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-15 14:05:08,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:08,426 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:05:08,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-15 14:05:08,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-15 14:05:08,639 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:08,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:08,640 INFO L85 PathProgramCache]: Analyzing trace with hash 386405767, now seen corresponding path program 8 times [2022-03-15 14:05:08,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:08,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777971730] [2022-03-15 14:05:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:08,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:05:09,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:09,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777971730] [2022-03-15 14:05:09,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777971730] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:09,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402492805] [2022-03-15 14:05:09,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:05:09,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:09,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:09,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-15 14:05:09,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:05:09,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:05:09,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 84 conjunts are in the unsatisfiable core [2022-03-15 14:05:09,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:10,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:05:10,135 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:05:10,466 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2022-03-15 14:05:10,496 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-15 14:05:10,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:05:10,752 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_295 (Array Int Int))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_295) c_~A~0.base))) (+ (* (- 1) (select .cse0 c_~A~0.offset)) (* (select .cse0 (+ c_~A~0.offset 4)) (- 1)) c_~counter~0 (select .cse0 (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork0_~i~0#1| 4))))) 0)) is different from false [2022-03-15 14:05:10,773 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_295 (Array Int Int))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_295) c_~A~0.base))) (+ (* (- 1) (select .cse0 c_~A~0.offset)) (select .cse0 (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork0_#t~post1#1| 4) 4)) (* (select .cse0 (+ c_~A~0.offset 4)) (- 1)) c_~counter~0)) 0)) is different from false [2022-03-15 14:05:10,777 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_295 (Array Int Int))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_295) c_~A~0.base))) (+ (* (- 1) (select .cse0 c_~A~0.offset)) (* (select .cse0 (+ c_~A~0.offset 4)) (- 1)) (select .cse0 (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork0_~i~0#1| 4) 4)) c_~counter~0)) 0)) is different from false [2022-03-15 14:05:10,804 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-03-15 14:05:10,804 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 89 [2022-03-15 14:05:10,820 INFO L353 Elim1Store]: treesize reduction 16, result has 59.0 percent of original size [2022-03-15 14:05:10,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2022-03-15 14:05:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 2 not checked. [2022-03-15 14:05:11,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402492805] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:05:11,424 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:05:11,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 21, 21] total 64 [2022-03-15 14:05:11,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656656079] [2022-03-15 14:05:11,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:05:11,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-03-15 14:05:11,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:05:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-03-15 14:05:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3466, Unknown=3, NotChecked=360, Total=4032 [2022-03-15 14:05:11,426 INFO L87 Difference]: Start difference. First operand 1109 states and 2820 transitions. Second operand has 64 states, 64 states have (on average 4.0625) internal successors, (260), 64 states have internal predecessors, (260), 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) [2022-03-15 14:05:15,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:05:15,267 INFO L93 Difference]: Finished difference Result 2235 states and 5796 transitions. [2022-03-15 14:05:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-15 14:05:15,268 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.0625) internal successors, (260), 64 states have internal predecessors, (260), 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 114 [2022-03-15 14:05:15,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:05:15,275 INFO L225 Difference]: With dead ends: 2235 [2022-03-15 14:05:15,275 INFO L226 Difference]: Without dead ends: 2184 [2022-03-15 14:05:15,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 200 SyntacticMatches, 5 SemanticMatches, 116 ConstructedPredicates, 3 IntricatePredicates, 3 DeprecatedPredicates, 3578 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1004, Invalid=12115, Unknown=3, NotChecked=684, Total=13806 [2022-03-15 14:05:15,277 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 1106 mSDsluCounter, 4919 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 4827 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 957 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:05:15,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1106 Valid, 4827 Invalid, 4717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3712 Invalid, 0 Unknown, 957 Unchecked, 1.5s Time] [2022-03-15 14:05:15,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2022-03-15 14:05:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 1327. [2022-03-15 14:05:15,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1326 states have (on average 2.605580693815988) internal successors, (3455), 1326 states have internal predecessors, (3455), 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) [2022-03-15 14:05:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 3455 transitions. [2022-03-15 14:05:15,300 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 3455 transitions. Word has length 114 [2022-03-15 14:05:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:05:15,300 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 3455 transitions. [2022-03-15 14:05:15,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.0625) internal successors, (260), 64 states have internal predecessors, (260), 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) [2022-03-15 14:05:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 3455 transitions. [2022-03-15 14:05:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-15 14:05:15,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:05:15,303 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:05:15,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-15 14:05:15,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-15 14:05:15,515 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:05:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:05:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1300173713, now seen corresponding path program 9 times [2022-03-15 14:05:15,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:05:15,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908414327] [2022-03-15 14:05:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:05:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:05:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:05:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:05:16,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:05:16,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908414327] [2022-03-15 14:05:16,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908414327] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:05:16,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401650121] [2022-03-15 14:05:16,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:05:16,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:05:16,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:05:16,219 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:05:16,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-15 14:05:16,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-03-15 14:05:16,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:05:16,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 110 conjunts are in the unsatisfiable core [2022-03-15 14:05:16,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:05:16,341 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:05:16,573 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:05:16,574 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:05:16,897 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-15 14:05:17,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:05:17,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:05:17,874 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:05:17,875 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 16 Received shutdown request... [2022-03-15 14:16:39,565 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-15 14:16:39,566 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 14:16:39,567 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 14:16:39,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-15 14:16:39,595 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 14:16:39,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-15 14:16:39,767 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. [2022-03-15 14:16:39,768 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 14:16:39,768 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 14:16:39,770 INFO L732 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1] [2022-03-15 14:16:39,772 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 14:16:39,772 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 14:16:39,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:16:39 BasicIcfg [2022-03-15 14:16:39,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 14:16:39,774 INFO L158 Benchmark]: Toolchain (without parser) took 705213.51ms. Allocated memory was 174.1MB in the beginning and 221.2MB in the end (delta: 47.2MB). Free memory was 126.8MB in the beginning and 149.0MB in the end (delta: -22.1MB). Peak memory consumption was 124.3MB. Max. memory is 8.0GB. [2022-03-15 14:16:39,774 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 174.1MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 14:16:39,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.62ms. Allocated memory is still 174.1MB. Free memory was 126.7MB in the beginning and 152.3MB in the end (delta: -25.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-15 14:16:39,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.72ms. Allocated memory is still 174.1MB. Free memory was 152.3MB in the beginning and 150.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 14:16:39,774 INFO L158 Benchmark]: Boogie Preprocessor took 24.02ms. Allocated memory is still 174.1MB. Free memory was 150.2MB in the beginning and 148.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 14:16:39,774 INFO L158 Benchmark]: RCFGBuilder took 421.24ms. Allocated memory is still 174.1MB. Free memory was 148.8MB in the beginning and 127.1MB in the end (delta: 21.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-03-15 14:16:39,775 INFO L158 Benchmark]: TraceAbstraction took 704563.22ms. Allocated memory was 174.1MB in the beginning and 221.2MB in the end (delta: 47.2MB). Free memory was 126.7MB in the beginning and 149.0MB in the end (delta: -22.2MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. [2022-03-15 14:16:39,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 174.1MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 175.62ms. Allocated memory is still 174.1MB. Free memory was 126.7MB in the beginning and 152.3MB in the end (delta: -25.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.72ms. Allocated memory is still 174.1MB. Free memory was 152.3MB in the beginning and 150.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.02ms. Allocated memory is still 174.1MB. Free memory was 150.2MB in the beginning and 148.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 421.24ms. Allocated memory is still 174.1MB. Free memory was 148.8MB in the beginning and 127.1MB in the end (delta: 21.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 704563.22ms. Allocated memory was 174.1MB in the beginning and 221.2MB in the end (delta: 47.2MB). Free memory was 126.7MB in the beginning and 149.0MB in the end (delta: -22.2MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 129 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 704.5s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5490 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5490 mSDsluCounter, 16472 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1134 IncrementalHoareTripleChecker+Unchecked, 15791 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7900 IncrementalHoareTripleChecker+Invalid, 9214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 1570 mSDtfsCounter, 7900 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2380 GetRequests, 1908 SyntacticMatches, 28 SemanticMatches, 444 ConstructedPredicates, 4 IntricatePredicates, 3 DeprecatedPredicates, 6536 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1425occurred in iteration=10, InterpolantAutomatonStates: 268, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 3126 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 2352 NumberOfCodeBlocks, 2342 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 3329 ConstructedInterpolants, 35 QuantifiedInterpolants, 16467 SizeOfPredicates, 164 NumberOfNonLiveVariables, 2621 ConjunctsInSsa, 283 ConjunctsInUnsatCore, 34 InterpolantComputations, 6 PerfectInterpolantSequences, 151/266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown