/usr/bin/java -Xmx16000000000 -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-simple-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 02:50:54,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 02:50:54,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 02:50:54,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 02:50:54,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 02:50:54,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 02:50:54,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 02:50:54,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 02:50:54,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 02:50:54,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 02:50:54,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 02:50:54,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 02:50:54,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 02:50:54,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 02:50:54,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 02:50:54,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 02:50:54,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 02:50:54,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 02:50:54,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 02:50:54,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 02:50:54,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 02:50:54,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 02:50:54,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 02:50:54,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 02:50:54,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 02:50:54,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 02:50:54,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 02:50:54,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 02:50:54,670 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 [2022-01-18 02:50:54,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 02:50:54,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 02:50:54,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 02:50:54,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 02:50:54,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 02:50:54,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 02:50:54,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 02:50:54,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 02:50:54,710 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 02:50:54,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 02:50:54,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 02:50:54,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 02:50:54,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 02:50:54,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 02:50:54,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 02:50:54,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 02:50:54,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 02:50:54,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 02:50:54,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:50:54,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 02:50:54,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 02:50:54,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 02:50:54,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 02:50:54,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 02:50:54,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 02:50:54,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 02:50:54,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 02:50:54,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 02:50:54,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 02:50:54,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 02:50:54,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 02:50:54,944 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 02:50:54,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-01-18 02:50:55,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371e60e88/d4650f914acd4eee8b37e2573cd9544a/FLAGcc82bea3a [2022-01-18 02:50:55,407 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 02:50:55,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-01-18 02:50:55,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371e60e88/d4650f914acd4eee8b37e2573cd9544a/FLAGcc82bea3a [2022-01-18 02:50:55,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371e60e88/d4650f914acd4eee8b37e2573cd9544a [2022-01-18 02:50:55,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 02:50:55,814 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 02:50:55,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 02:50:55,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 02:50:55,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 02:50:55,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:50:55" (1/1) ... [2022-01-18 02:50:55,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55168517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:55, skipping insertion in model container [2022-01-18 02:50:55,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:50:55" (1/1) ... [2022-01-18 02:50:55,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 02:50:55,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 02:50:56,070 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-simple-array-sum.wvr.c[2690,2703] [2022-01-18 02:50:56,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:50:56,094 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 02:50:56,131 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-simple-array-sum.wvr.c[2690,2703] [2022-01-18 02:50:56,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:50:56,149 INFO L208 MainTranslator]: Completed translation [2022-01-18 02:50:56,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56 WrapperNode [2022-01-18 02:50:56,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 02:50:56,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 02:50:56,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 02:50:56,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 02:50:56,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,201 INFO L137 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 121 [2022-01-18 02:50:56,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 02:50:56,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 02:50:56,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 02:50:56,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 02:50:56,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 02:50:56,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 02:50:56,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 02:50:56,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 02:50:56,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (1/1) ... [2022-01-18 02:50:56,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:50:56,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:50:56,280 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) [2022-01-18 02:50:56,319 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 [2022-01-18 02:50:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 02:50:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 02:50:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 02:50:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 02:50:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 02:50:56,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 02:50:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 02:50:56,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 02:50:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 02:50:56,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 02:50:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 02:50:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 02:50:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 02:50:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 02:50:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 02:50:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 02:50:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 02:50:56,328 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 02:50:56,421 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 02:50:56,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 02:50:56,709 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 02:50:56,731 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 02:50:56,732 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-18 02:50:56,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:50:56 BoogieIcfgContainer [2022-01-18 02:50:56,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 02:50:56,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 02:50:56,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 02:50:56,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 02:50:56,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 02:50:55" (1/3) ... [2022-01-18 02:50:56,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bda94a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:50:56, skipping insertion in model container [2022-01-18 02:50:56,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:50:56" (2/3) ... [2022-01-18 02:50:56,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bda94a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:50:56, skipping insertion in model container [2022-01-18 02:50:56,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:50:56" (3/3) ... [2022-01-18 02:50:56,743 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2022-01-18 02:50:56,747 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 02:50:56,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 02:50:56,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 02:50:56,747 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 02:50:56,786 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,787 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,787 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,787 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,787 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,788 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,789 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,789 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,790 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,791 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,791 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,791 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,792 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,792 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,792 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,795 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,795 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,795 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,798 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,798 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,798 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,798 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,798 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,799 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,800 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,800 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,800 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,800 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,800 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,801 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,801 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,801 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,801 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,802 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,802 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,802 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,802 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,802 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,803 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,803 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,803 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,803 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,803 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,803 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,804 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,804 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,807 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,808 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,809 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,809 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,810 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:50:56,813 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 02:50:56,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 02:50:56,856 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 02:50:56,856 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 02:50:56,868 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 180 places, 186 transitions, 396 flow [2022-01-18 02:50:57,203 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 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) [2022-01-18 02:50:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 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) [2022-01-18 02:50:57,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-18 02:50:57,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:50:57,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:50:57,286 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:50:57,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:50:57,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1889282923, now seen corresponding path program 1 times [2022-01-18 02:50:57,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:50:57,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836155962] [2022-01-18 02:50:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:50:57,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:50:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:50:57,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:50:57,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:50:57,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836155962] [2022-01-18 02:50:57,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836155962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:50:57,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:50:57,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 02:50:57,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88145140] [2022-01-18 02:50:57,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:50:57,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 02:50:57,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:50:57,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 02:50:57,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:50:57,577 INFO L87 Difference]: Start difference. First operand has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:50:57,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:50:57,716 INFO L93 Difference]: Finished difference Result 6035 states and 21899 transitions. [2022-01-18 02:50:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 02:50:57,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-01-18 02:50:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:50:57,787 INFO L225 Difference]: With dead ends: 6035 [2022-01-18 02:50:57,787 INFO L226 Difference]: Without dead ends: 6030 [2022-01-18 02:50:57,789 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 [2022-01-18 02:50:57,794 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:50:57,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:50:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2022-01-18 02:50:58,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 6030. [2022-01-18 02:50:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 6029 states have (on average 3.6314480013269197) internal successors, (21894), 6029 states have internal predecessors, (21894), 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) [2022-01-18 02:50:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 21894 transitions. [2022-01-18 02:50:58,283 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 21894 transitions. Word has length 124 [2022-01-18 02:50:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:50:58,285 INFO L470 AbstractCegarLoop]: Abstraction has 6030 states and 21894 transitions. [2022-01-18 02:50:58,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:50:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 21894 transitions. [2022-01-18 02:50:58,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-18 02:50:58,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:50:58,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:50:58,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 02:50:58,312 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:50:58,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:50:58,314 INFO L85 PathProgramCache]: Analyzing trace with hash -79140489, now seen corresponding path program 1 times [2022-01-18 02:50:58,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:50:58,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552442862] [2022-01-18 02:50:58,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:50:58,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:50:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:50:59,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:50:59,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:50:59,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552442862] [2022-01-18 02:50:59,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552442862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:50:59,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:50:59,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 02:50:59,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545685559] [2022-01-18 02:50:59,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:50:59,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 02:50:59,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:50:59,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 02:50:59,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 02:50:59,208 INFO L87 Difference]: Start difference. First operand 6030 states and 21894 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:00,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:00,120 INFO L93 Difference]: Finished difference Result 14661 states and 53513 transitions. [2022-01-18 02:51:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 02:51:00,121 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-01-18 02:51:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:00,233 INFO L225 Difference]: With dead ends: 14661 [2022-01-18 02:51:00,234 INFO L226 Difference]: Without dead ends: 14196 [2022-01-18 02:51:00,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=323, Unknown=0, NotChecked=0, Total=506 [2022-01-18 02:51:00,236 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 739 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:00,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 928 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 02:51:00,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14196 states. [2022-01-18 02:51:00,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14196 to 7575. [2022-01-18 02:51:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7575 states, 7574 states have (on average 3.6198838130446265) internal successors, (27417), 7574 states have internal predecessors, (27417), 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) [2022-01-18 02:51:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7575 states to 7575 states and 27417 transitions. [2022-01-18 02:51:00,659 INFO L78 Accepts]: Start accepts. Automaton has 7575 states and 27417 transitions. Word has length 124 [2022-01-18 02:51:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:00,660 INFO L470 AbstractCegarLoop]: Abstraction has 7575 states and 27417 transitions. [2022-01-18 02:51:00,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:00,661 INFO L276 IsEmpty]: Start isEmpty. Operand 7575 states and 27417 transitions. [2022-01-18 02:51:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-18 02:51:00,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:00,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:00,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 02:51:00,782 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:00,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:00,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2040901353, now seen corresponding path program 1 times [2022-01-18 02:51:00,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:00,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905865418] [2022-01-18 02:51:00,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:00,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:00,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:00,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905865418] [2022-01-18 02:51:00,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905865418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:51:00,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:51:00,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 02:51:00,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452802334] [2022-01-18 02:51:00,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:00,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:00,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:00,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:00,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:51:00,892 INFO L87 Difference]: Start difference. First operand 7575 states and 27417 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-01-18 02:51:01,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:01,246 INFO L93 Difference]: Finished difference Result 13777 states and 48829 transitions. [2022-01-18 02:51:01,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 02:51:01,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 131 [2022-01-18 02:51:01,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:01,313 INFO L225 Difference]: With dead ends: 13777 [2022-01-18 02:51:01,313 INFO L226 Difference]: Without dead ends: 13297 [2022-01-18 02:51:01,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-01-18 02:51:01,315 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 824 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:01,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 561 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:51:01,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13297 states. [2022-01-18 02:51:01,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13297 to 8135. [2022-01-18 02:51:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8135 states, 8134 states have (on average 3.610892549791001) internal successors, (29371), 8134 states have internal predecessors, (29371), 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) [2022-01-18 02:51:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8135 states to 8135 states and 29371 transitions. [2022-01-18 02:51:01,694 INFO L78 Accepts]: Start accepts. Automaton has 8135 states and 29371 transitions. Word has length 131 [2022-01-18 02:51:01,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:01,696 INFO L470 AbstractCegarLoop]: Abstraction has 8135 states and 29371 transitions. [2022-01-18 02:51:01,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-01-18 02:51:01,696 INFO L276 IsEmpty]: Start isEmpty. Operand 8135 states and 29371 transitions. [2022-01-18 02:51:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-18 02:51:01,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:01,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:01,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 02:51:01,731 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:01,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:01,733 INFO L85 PathProgramCache]: Analyzing trace with hash 991679570, now seen corresponding path program 1 times [2022-01-18 02:51:01,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:01,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697982180] [2022-01-18 02:51:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:01,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:01,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:01,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697982180] [2022-01-18 02:51:01,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697982180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:51:01,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:51:01,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 02:51:01,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811192947] [2022-01-18 02:51:01,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:01,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:01,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:01,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:51:01,855 INFO L87 Difference]: Start difference. First operand 8135 states and 29371 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-01-18 02:51:02,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:02,079 INFO L93 Difference]: Finished difference Result 7687 states and 26509 transitions. [2022-01-18 02:51:02,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 02:51:02,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 131 [2022-01-18 02:51:02,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:02,105 INFO L225 Difference]: With dead ends: 7687 [2022-01-18 02:51:02,106 INFO L226 Difference]: Without dead ends: 6040 [2022-01-18 02:51:02,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-01-18 02:51:02,114 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 692 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:02,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 479 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:51:02,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2022-01-18 02:51:02,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 6032. [2022-01-18 02:51:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 6031 states have (on average 3.63057536063671) internal successors, (21896), 6031 states have internal predecessors, (21896), 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) [2022-01-18 02:51:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 21896 transitions. [2022-01-18 02:51:02,398 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 21896 transitions. Word has length 131 [2022-01-18 02:51:02,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:02,399 INFO L470 AbstractCegarLoop]: Abstraction has 6032 states and 21896 transitions. [2022-01-18 02:51:02,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-01-18 02:51:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 21896 transitions. [2022-01-18 02:51:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-18 02:51:02,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:02,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:02,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 02:51:02,424 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:02,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:02,425 INFO L85 PathProgramCache]: Analyzing trace with hash 728658965, now seen corresponding path program 1 times [2022-01-18 02:51:02,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:02,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394004842] [2022-01-18 02:51:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:02,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:51:02,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:02,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394004842] [2022-01-18 02:51:02,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394004842] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:02,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995957599] [2022-01-18 02:51:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:02,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:02,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:02,535 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) [2022-01-18 02:51:02,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 02:51:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:02,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:51:02,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:51:03,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:51:03,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995957599] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:03,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:51:03,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-18 02:51:03,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592290621] [2022-01-18 02:51:03,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:03,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:03,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:03,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:03,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-18 02:51:03,345 INFO L87 Difference]: Start difference. First operand 6032 states and 21896 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2022-01-18 02:51:03,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:03,455 INFO L93 Difference]: Finished difference Result 6615 states and 24055 transitions. [2022-01-18 02:51:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:51:03,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 136 [2022-01-18 02:51:03,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:03,486 INFO L225 Difference]: With dead ends: 6615 [2022-01-18 02:51:03,486 INFO L226 Difference]: Without dead ends: 6615 [2022-01-18 02:51:03,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-18 02:51:03,487 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 396 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:03,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 377 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:51:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2022-01-18 02:51:03,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6615. [2022-01-18 02:51:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 6614 states have (on average 3.6369821590565468) internal successors, (24055), 6614 states have internal predecessors, (24055), 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) [2022-01-18 02:51:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 24055 transitions. [2022-01-18 02:51:03,731 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 24055 transitions. Word has length 136 [2022-01-18 02:51:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:03,731 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 24055 transitions. [2022-01-18 02:51:03,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2022-01-18 02:51:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 24055 transitions. [2022-01-18 02:51:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-18 02:51:03,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:03,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:03,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:03,982 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 [2022-01-18 02:51:03,983 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:03,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:03,983 INFO L85 PathProgramCache]: Analyzing trace with hash 877480859, now seen corresponding path program 1 times [2022-01-18 02:51:03,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:03,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942814352] [2022-01-18 02:51:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:03,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:51:04,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:04,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942814352] [2022-01-18 02:51:04,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942814352] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:04,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656651310] [2022-01-18 02:51:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:04,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:04,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:04,068 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) [2022-01-18 02:51:04,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 02:51:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:04,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:51:04,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:51:04,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:51:04,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656651310] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:04,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:51:04,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-18 02:51:04,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69309012] [2022-01-18 02:51:04,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:04,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:04,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:04,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:04,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-18 02:51:04,691 INFO L87 Difference]: Start difference. First operand 6615 states and 24055 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2022-01-18 02:51:04,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:04,803 INFO L93 Difference]: Finished difference Result 7135 states and 25975 transitions. [2022-01-18 02:51:04,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:51:04,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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 142 [2022-01-18 02:51:04,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:04,943 INFO L225 Difference]: With dead ends: 7135 [2022-01-18 02:51:04,943 INFO L226 Difference]: Without dead ends: 7135 [2022-01-18 02:51:04,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-18 02:51:04,944 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 305 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 407 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 [2022-01-18 02:51:04,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 407 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:51:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7135 states. [2022-01-18 02:51:05,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7135 to 7135. [2022-01-18 02:51:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7135 states, 7134 states have (on average 3.6410148584244464) internal successors, (25975), 7134 states have internal predecessors, (25975), 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) [2022-01-18 02:51:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7135 states to 7135 states and 25975 transitions. [2022-01-18 02:51:05,113 INFO L78 Accepts]: Start accepts. Automaton has 7135 states and 25975 transitions. Word has length 142 [2022-01-18 02:51:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:05,113 INFO L470 AbstractCegarLoop]: Abstraction has 7135 states and 25975 transitions. [2022-01-18 02:51:05,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2022-01-18 02:51:05,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7135 states and 25975 transitions. [2022-01-18 02:51:05,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-18 02:51:05,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:05,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:05,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 02:51:05,347 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 [2022-01-18 02:51:05,348 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash -86048338, now seen corresponding path program 1 times [2022-01-18 02:51:05,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:05,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309001715] [2022-01-18 02:51:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:05,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:05,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:05,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309001715] [2022-01-18 02:51:05,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309001715] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:05,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355021896] [2022-01-18 02:51:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:05,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:05,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:05,442 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) [2022-01-18 02:51:05,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 02:51:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:05,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:51:05,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:05,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:06,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355021896] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:06,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:51:06,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-18 02:51:06,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370921248] [2022-01-18 02:51:06,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:06,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:06,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:06,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:06,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-18 02:51:06,101 INFO L87 Difference]: Start difference. First operand 7135 states and 25975 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2022-01-18 02:51:06,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:06,309 INFO L93 Difference]: Finished difference Result 7735 states and 28209 transitions. [2022-01-18 02:51:06,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:51:06,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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 149 [2022-01-18 02:51:06,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:06,341 INFO L225 Difference]: With dead ends: 7735 [2022-01-18 02:51:06,342 INFO L226 Difference]: Without dead ends: 7735 [2022-01-18 02:51:06,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-18 02:51:06,343 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 399 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:06,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 376 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:51:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2022-01-18 02:51:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 7735. [2022-01-18 02:51:06,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7735 states, 7734 states have (on average 3.647401086113266) internal successors, (28209), 7734 states have internal predecessors, (28209), 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) [2022-01-18 02:51:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7735 states to 7735 states and 28209 transitions. [2022-01-18 02:51:06,572 INFO L78 Accepts]: Start accepts. Automaton has 7735 states and 28209 transitions. Word has length 149 [2022-01-18 02:51:06,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:06,573 INFO L470 AbstractCegarLoop]: Abstraction has 7735 states and 28209 transitions. [2022-01-18 02:51:06,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2022-01-18 02:51:06,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7735 states and 28209 transitions. [2022-01-18 02:51:06,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-18 02:51:06,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:06,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:06,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:06,802 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 [2022-01-18 02:51:06,802 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:06,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash -167158528, now seen corresponding path program 1 times [2022-01-18 02:51:06,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:06,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529645661] [2022-01-18 02:51:06,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:06,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:06,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:06,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529645661] [2022-01-18 02:51:06,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529645661] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:06,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019057524] [2022-01-18 02:51:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:06,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:06,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:06,904 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) [2022-01-18 02:51:06,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 02:51:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:07,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:51:07,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:07,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:07,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019057524] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:07,597 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:07,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-01-18 02:51:07,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529823977] [2022-01-18 02:51:07,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:07,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 02:51:07,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:07,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 02:51:07,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-01-18 02:51:07,599 INFO L87 Difference]: Start difference. First operand 7735 states and 28209 transitions. Second operand has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 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) [2022-01-18 02:51:07,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:07,840 INFO L93 Difference]: Finished difference Result 13609 states and 49260 transitions. [2022-01-18 02:51:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 02:51:07,840 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 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 156 [2022-01-18 02:51:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:07,884 INFO L225 Difference]: With dead ends: 13609 [2022-01-18 02:51:07,885 INFO L226 Difference]: Without dead ends: 12457 [2022-01-18 02:51:07,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-01-18 02:51:07,885 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 416 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:07,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 1346 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:51:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12457 states. [2022-01-18 02:51:08,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12457 to 9589. [2022-01-18 02:51:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9589 states, 9588 states have (on average 3.605131414267835) internal successors, (34566), 9588 states have internal predecessors, (34566), 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) [2022-01-18 02:51:08,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 34566 transitions. [2022-01-18 02:51:08,176 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 34566 transitions. Word has length 156 [2022-01-18 02:51:08,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:08,176 INFO L470 AbstractCegarLoop]: Abstraction has 9589 states and 34566 transitions. [2022-01-18 02:51:08,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 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) [2022-01-18 02:51:08,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 34566 transitions. [2022-01-18 02:51:08,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-18 02:51:08,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:08,203 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:08,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:08,416 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 [2022-01-18 02:51:08,417 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:08,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:08,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1531874940, now seen corresponding path program 2 times [2022-01-18 02:51:08,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:08,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773096669] [2022-01-18 02:51:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:08,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:08,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773096669] [2022-01-18 02:51:08,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773096669] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255556503] [2022-01-18 02:51:08,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:51:08,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:08,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:08,579 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) [2022-01-18 02:51:08,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 02:51:08,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:51:08,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:51:08,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 02:51:08,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:08,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:51:09,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255556503] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:09,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:09,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2022-01-18 02:51:09,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937725622] [2022-01-18 02:51:09,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:09,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 02:51:09,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:09,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 02:51:09,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-01-18 02:51:09,228 INFO L87 Difference]: Start difference. First operand 9589 states and 34566 transitions. Second operand has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 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) [2022-01-18 02:51:11,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:11,300 INFO L93 Difference]: Finished difference Result 23250 states and 84117 transitions. [2022-01-18 02:51:11,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 02:51:11,300 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 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 162 [2022-01-18 02:51:11,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:11,375 INFO L225 Difference]: With dead ends: 23250 [2022-01-18 02:51:11,375 INFO L226 Difference]: Without dead ends: 17817 [2022-01-18 02:51:11,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=991, Invalid=4861, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 02:51:11,378 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1927 mSDsluCounter, 4152 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 4297 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:11,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1927 Valid, 4297 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 02:51:11,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17817 states. [2022-01-18 02:51:11,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17817 to 13603. [2022-01-18 02:51:11,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13603 states, 13602 states have (on average 3.663431848257609) internal successors, (49830), 13602 states have internal predecessors, (49830), 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) [2022-01-18 02:51:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13603 states to 13603 states and 49830 transitions. [2022-01-18 02:51:11,805 INFO L78 Accepts]: Start accepts. Automaton has 13603 states and 49830 transitions. Word has length 162 [2022-01-18 02:51:11,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:11,805 INFO L470 AbstractCegarLoop]: Abstraction has 13603 states and 49830 transitions. [2022-01-18 02:51:11,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 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) [2022-01-18 02:51:11,805 INFO L276 IsEmpty]: Start isEmpty. Operand 13603 states and 49830 transitions. [2022-01-18 02:51:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-18 02:51:11,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:11,840 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:11,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:12,064 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 [2022-01-18 02:51:12,065 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:12,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1430656672, now seen corresponding path program 3 times [2022-01-18 02:51:12,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:12,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802207432] [2022-01-18 02:51:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:12,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-18 02:51:12,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:12,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802207432] [2022-01-18 02:51:12,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802207432] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:12,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692974428] [2022-01-18 02:51:12,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 02:51:12,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:12,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:12,199 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) [2022-01-18 02:51:12,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 02:51:12,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 02:51:12,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:51:12,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:51:12,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-18 02:51:12,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-18 02:51:13,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692974428] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:13,186 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:13,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-01-18 02:51:13,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953773310] [2022-01-18 02:51:13,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:13,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 02:51:13,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:13,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 02:51:13,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-01-18 02:51:13,191 INFO L87 Difference]: Start difference. First operand 13603 states and 49830 transitions. Second operand has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 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) [2022-01-18 02:51:13,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:13,716 INFO L93 Difference]: Finished difference Result 20071 states and 74652 transitions. [2022-01-18 02:51:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 02:51:13,717 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 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 174 [2022-01-18 02:51:13,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:13,780 INFO L225 Difference]: With dead ends: 20071 [2022-01-18 02:51:13,780 INFO L226 Difference]: Without dead ends: 20071 [2022-01-18 02:51:13,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 335 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 02:51:13,781 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1051 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:13,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 1100 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:51:13,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20071 states. [2022-01-18 02:51:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20071 to 12835. [2022-01-18 02:51:14,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 3.661290322580645) internal successors, (46989), 12834 states have internal predecessors, (46989), 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) [2022-01-18 02:51:14,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 46989 transitions. [2022-01-18 02:51:14,215 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 46989 transitions. Word has length 174 [2022-01-18 02:51:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:14,216 INFO L470 AbstractCegarLoop]: Abstraction has 12835 states and 46989 transitions. [2022-01-18 02:51:14,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 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) [2022-01-18 02:51:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 46989 transitions. [2022-01-18 02:51:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-18 02:51:14,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:14,244 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:14,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-18 02:51:14,459 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 [2022-01-18 02:51:14,460 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:14,460 INFO L85 PathProgramCache]: Analyzing trace with hash 802068047, now seen corresponding path program 4 times [2022-01-18 02:51:14,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:14,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393817034] [2022-01-18 02:51:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:14,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-18 02:51:14,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:14,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393817034] [2022-01-18 02:51:14,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393817034] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:14,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107146815] [2022-01-18 02:51:14,580 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 02:51:14,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:14,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:14,584 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) [2022-01-18 02:51:14,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 02:51:14,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 02:51:14,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:51:14,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:51:14,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:15,142 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-18 02:51:15,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-18 02:51:15,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107146815] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:15,591 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:15,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-01-18 02:51:15,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979399460] [2022-01-18 02:51:15,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:15,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 02:51:15,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:15,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 02:51:15,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-01-18 02:51:15,593 INFO L87 Difference]: Start difference. First operand 12835 states and 46989 transitions. Second operand has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 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) [2022-01-18 02:51:16,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:16,196 INFO L93 Difference]: Finished difference Result 24835 states and 91701 transitions. [2022-01-18 02:51:16,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 02:51:16,196 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 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 181 [2022-01-18 02:51:16,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:16,277 INFO L225 Difference]: With dead ends: 24835 [2022-01-18 02:51:16,277 INFO L226 Difference]: Without dead ends: 24835 [2022-01-18 02:51:16,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 347 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 02:51:16,278 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1320 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:16,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1320 Valid, 1569 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 02:51:16,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24835 states. [2022-01-18 02:51:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24835 to 19835. [2022-01-18 02:51:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19835 states, 19834 states have (on average 3.684128264596148) internal successors, (73071), 19834 states have internal predecessors, (73071), 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) [2022-01-18 02:51:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19835 states to 19835 states and 73071 transitions. [2022-01-18 02:51:16,797 INFO L78 Accepts]: Start accepts. Automaton has 19835 states and 73071 transitions. Word has length 181 [2022-01-18 02:51:16,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:16,798 INFO L470 AbstractCegarLoop]: Abstraction has 19835 states and 73071 transitions. [2022-01-18 02:51:16,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 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) [2022-01-18 02:51:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 19835 states and 73071 transitions. [2022-01-18 02:51:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-01-18 02:51:16,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:16,845 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:16,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:17,071 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 [2022-01-18 02:51:17,072 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:17,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:17,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1463254721, now seen corresponding path program 5 times [2022-01-18 02:51:17,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:17,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015779198] [2022-01-18 02:51:17,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:17,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-18 02:51:17,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:17,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015779198] [2022-01-18 02:51:17,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015779198] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:17,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524543123] [2022-01-18 02:51:17,285 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 02:51:17,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:17,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:17,286 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) [2022-01-18 02:51:17,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 02:51:17,414 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 02:51:17,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:51:17,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:51:17,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-18 02:51:17,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-18 02:51:18,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524543123] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:18,127 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:18,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 10] total 25 [2022-01-18 02:51:18,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039661393] [2022-01-18 02:51:18,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:18,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 02:51:18,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 02:51:18,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-18 02:51:18,133 INFO L87 Difference]: Start difference. First operand 19835 states and 73071 transitions. Second operand has 25 states, 25 states have (on average 11.4) internal successors, (285), 25 states have internal predecessors, (285), 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) [2022-01-18 02:51:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:21,629 INFO L93 Difference]: Finished difference Result 71385 states and 263414 transitions. [2022-01-18 02:51:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-01-18 02:51:21,630 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.4) internal successors, (285), 25 states have internal predecessors, (285), 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 188 [2022-01-18 02:51:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:21,779 INFO L225 Difference]: With dead ends: 71385 [2022-01-18 02:51:21,779 INFO L226 Difference]: Without dead ends: 42057 [2022-01-18 02:51:21,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 368 SyntacticMatches, 1 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4486 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2366, Invalid=11676, Unknown=0, NotChecked=0, Total=14042 [2022-01-18 02:51:21,784 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 2926 mSDsluCounter, 5066 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 5073 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:21,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2926 Valid, 5073 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 02:51:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42057 states. [2022-01-18 02:51:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42057 to 26933. [2022-01-18 02:51:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26933 states, 26932 states have (on average 3.6918535571067874) internal successors, (99429), 26932 states have internal predecessors, (99429), 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) [2022-01-18 02:51:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26933 states to 26933 states and 99429 transitions. [2022-01-18 02:51:22,575 INFO L78 Accepts]: Start accepts. Automaton has 26933 states and 99429 transitions. Word has length 188 [2022-01-18 02:51:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:22,575 INFO L470 AbstractCegarLoop]: Abstraction has 26933 states and 99429 transitions. [2022-01-18 02:51:22,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.4) internal successors, (285), 25 states have internal predecessors, (285), 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) [2022-01-18 02:51:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 26933 states and 99429 transitions. [2022-01-18 02:51:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-01-18 02:51:22,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:22,635 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:22,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:22,836 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 [2022-01-18 02:51:22,837 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:22,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -161059487, now seen corresponding path program 6 times [2022-01-18 02:51:22,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:22,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116323259] [2022-01-18 02:51:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:22,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-01-18 02:51:23,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:23,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116323259] [2022-01-18 02:51:23,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116323259] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:23,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826986959] [2022-01-18 02:51:23,013 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 02:51:23,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:23,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:23,016 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) [2022-01-18 02:51:23,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 02:51:23,196 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-01-18 02:51:23,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:51:23,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 02:51:23,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-01-18 02:51:23,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:23,899 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-01-18 02:51:23,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826986959] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:23,899 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:23,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 27 [2022-01-18 02:51:23,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506451578] [2022-01-18 02:51:23,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:23,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 02:51:23,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:23,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 02:51:23,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2022-01-18 02:51:23,903 INFO L87 Difference]: Start difference. First operand 26933 states and 99429 transitions. Second operand has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 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) [2022-01-18 02:51:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:26,169 INFO L93 Difference]: Finished difference Result 36929 states and 137985 transitions. [2022-01-18 02:51:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 02:51:26,169 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 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 206 [2022-01-18 02:51:26,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:26,283 INFO L225 Difference]: With dead ends: 36929 [2022-01-18 02:51:26,283 INFO L226 Difference]: Without dead ends: 36929 [2022-01-18 02:51:26,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 399 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1532 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1331, Invalid=4831, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 02:51:26,284 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1517 mSDsluCounter, 3900 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 4046 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:26,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 4046 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 02:51:26,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36929 states. [2022-01-18 02:51:26,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36929 to 31931. [2022-01-18 02:51:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31931 states, 31930 states have (on average 3.7177262762292513) internal successors, (118707), 31930 states have internal predecessors, (118707), 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) [2022-01-18 02:51:27,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31931 states to 31931 states and 118707 transitions. [2022-01-18 02:51:27,129 INFO L78 Accepts]: Start accepts. Automaton has 31931 states and 118707 transitions. Word has length 206 [2022-01-18 02:51:27,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:27,129 INFO L470 AbstractCegarLoop]: Abstraction has 31931 states and 118707 transitions. [2022-01-18 02:51:27,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 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) [2022-01-18 02:51:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 31931 states and 118707 transitions. [2022-01-18 02:51:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-01-18 02:51:27,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:27,199 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:27,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:27,405 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 [2022-01-18 02:51:27,405 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:27,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:27,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1428556086, now seen corresponding path program 7 times [2022-01-18 02:51:27,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:27,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635165015] [2022-01-18 02:51:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:27,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-18 02:51:27,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:27,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635165015] [2022-01-18 02:51:27,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635165015] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:27,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884903537] [2022-01-18 02:51:27,576 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 02:51:27,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:27,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:27,577 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) [2022-01-18 02:51:27,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 02:51:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:27,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 02:51:27,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-18 02:51:28,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-18 02:51:28,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884903537] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:28,907 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:28,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2022-01-18 02:51:28,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893077792] [2022-01-18 02:51:28,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:28,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 02:51:28,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:28,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 02:51:28,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 02:51:28,909 INFO L87 Difference]: Start difference. First operand 31931 states and 118707 transitions. Second operand has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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) [2022-01-18 02:51:29,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:29,918 INFO L93 Difference]: Finished difference Result 51275 states and 191355 transitions. [2022-01-18 02:51:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 02:51:29,919 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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 213 [2022-01-18 02:51:29,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:30,100 INFO L225 Difference]: With dead ends: 51275 [2022-01-18 02:51:30,100 INFO L226 Difference]: Without dead ends: 51275 [2022-01-18 02:51:30,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 405 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=764, Invalid=2658, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 02:51:30,102 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 1599 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:30,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1599 Valid, 1917 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 02:51:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51275 states. [2022-01-18 02:51:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51275 to 43215. [2022-01-18 02:51:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43215 states, 43214 states have (on average 3.727611422224279) internal successors, (161085), 43214 states have internal predecessors, (161085), 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) [2022-01-18 02:51:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43215 states to 43215 states and 161085 transitions. [2022-01-18 02:51:31,411 INFO L78 Accepts]: Start accepts. Automaton has 43215 states and 161085 transitions. Word has length 213 [2022-01-18 02:51:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:31,412 INFO L470 AbstractCegarLoop]: Abstraction has 43215 states and 161085 transitions. [2022-01-18 02:51:31,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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) [2022-01-18 02:51:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 43215 states and 161085 transitions. [2022-01-18 02:51:31,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-01-18 02:51:31,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:31,502 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:31,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:31,704 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 [2022-01-18 02:51:31,704 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:31,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash 358723684, now seen corresponding path program 8 times [2022-01-18 02:51:31,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:31,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45342682] [2022-01-18 02:51:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:31,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:31,962 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 44 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-01-18 02:51:31,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:31,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45342682] [2022-01-18 02:51:31,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45342682] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:31,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821605056] [2022-01-18 02:51:31,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:51:31,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:31,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:31,964 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) [2022-01-18 02:51:31,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 02:51:32,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:51:32,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:51:32,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 02:51:32,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-18 02:51:32,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-18 02:51:33,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821605056] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:33,099 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:33,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 14] total 33 [2022-01-18 02:51:33,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301760414] [2022-01-18 02:51:33,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:33,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 02:51:33,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:33,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 02:51:33,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=947, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 02:51:33,101 INFO L87 Difference]: Start difference. First operand 43215 states and 161085 transitions. Second operand has 33 states, 33 states have (on average 9.424242424242424) internal successors, (311), 33 states have internal predecessors, (311), 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) [2022-01-18 02:51:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:41,978 INFO L93 Difference]: Finished difference Result 178563 states and 666839 transitions. [2022-01-18 02:51:41,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-01-18 02:51:41,978 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.424242424242424) internal successors, (311), 33 states have internal predecessors, (311), 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 220 [2022-01-18 02:51:41,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:42,421 INFO L225 Difference]: With dead ends: 178563 [2022-01-18 02:51:42,421 INFO L226 Difference]: Without dead ends: 99963 [2022-01-18 02:51:42,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 428 SyntacticMatches, 1 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24643 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=7123, Invalid=55627, Unknown=0, NotChecked=0, Total=62750 [2022-01-18 02:51:42,428 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 5918 mSDsluCounter, 10111 mSDsCounter, 0 mSdLazyCounter, 4756 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5918 SdHoareTripleChecker+Valid, 9936 SdHoareTripleChecker+Invalid, 5087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 4756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:42,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5918 Valid, 9936 Invalid, 5087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 4756 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-18 02:51:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99963 states. [2022-01-18 02:51:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99963 to 57969. [2022-01-18 02:51:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57969 states, 57968 states have (on average 3.7376828595086944) internal successors, (216666), 57968 states have internal predecessors, (216666), 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) [2022-01-18 02:51:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57969 states to 57969 states and 216666 transitions. [2022-01-18 02:51:44,957 INFO L78 Accepts]: Start accepts. Automaton has 57969 states and 216666 transitions. Word has length 220 [2022-01-18 02:51:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:44,958 INFO L470 AbstractCegarLoop]: Abstraction has 57969 states and 216666 transitions. [2022-01-18 02:51:44,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.424242424242424) internal successors, (311), 33 states have internal predecessors, (311), 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) [2022-01-18 02:51:44,958 INFO L276 IsEmpty]: Start isEmpty. Operand 57969 states and 216666 transitions. [2022-01-18 02:51:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-01-18 02:51:45,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:45,164 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:45,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:45,364 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 [2022-01-18 02:51:45,365 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:45,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:45,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1806839302, now seen corresponding path program 9 times [2022-01-18 02:51:45,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:45,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911767776] [2022-01-18 02:51:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:45,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:45,583 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 10 proven. 54 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-01-18 02:51:45,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:45,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911767776] [2022-01-18 02:51:45,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911767776] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:45,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856825678] [2022-01-18 02:51:45,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 02:51:45,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:45,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:45,588 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:51:45,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 02:51:45,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 02:51:45,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:51:45,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 02:51:45,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-01-18 02:51:46,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-01-18 02:51:46,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856825678] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:51:46,401 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:51:46,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 8] total 23 [2022-01-18 02:51:46,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296721801] [2022-01-18 02:51:46,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:51:46,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 02:51:46,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:46,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 02:51:46,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-01-18 02:51:46,403 INFO L87 Difference]: Start difference. First operand 57969 states and 216666 transitions. Second operand has 23 states, 23 states have (on average 12.956521739130435) internal successors, (298), 23 states have internal predecessors, (298), 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) [2022-01-18 02:51:48,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:48,745 INFO L93 Difference]: Finished difference Result 65566 states and 245970 transitions. [2022-01-18 02:51:48,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 02:51:48,747 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.956521739130435) internal successors, (298), 23 states have internal predecessors, (298), 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 238 [2022-01-18 02:51:48,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:48,748 INFO L225 Difference]: With dead ends: 65566 [2022-01-18 02:51:48,748 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 02:51:48,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 499 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1267, Invalid=4585, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 02:51:48,749 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1806 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:48,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1806 Valid, 3158 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 02:51:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 02:51:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 02:51:48,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 02:51:48,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 238 [2022-01-18 02:51:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:48,750 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 02:51:48,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.956521739130435) internal successors, (298), 23 states have internal predecessors, (298), 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) [2022-01-18 02:51:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 02:51:48,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 02:51:48,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 02:51:48,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 02:51:48,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 02:51:48,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 02:51:48,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:48,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 02:51:48,965 INFO L732 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:48,967 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 02:51:48,967 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 02:51:48,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 02:51:48 BasicIcfg [2022-01-18 02:51:48,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 02:51:48,969 INFO L158 Benchmark]: Toolchain (without parser) took 53155.06ms. Allocated memory was 362.8MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 309.2MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. [2022-01-18 02:51:48,969 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 325.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 02:51:48,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.34ms. Allocated memory was 362.8MB in the beginning and 436.2MB in the end (delta: 73.4MB). Free memory was 309.1MB in the beginning and 408.9MB in the end (delta: -99.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. [2022-01-18 02:51:48,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.37ms. Allocated memory is still 436.2MB. Free memory was 408.9MB in the beginning and 406.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 02:51:48,970 INFO L158 Benchmark]: Boogie Preprocessor took 44.94ms. Allocated memory is still 436.2MB. Free memory was 406.8MB in the beginning and 405.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 02:51:48,970 INFO L158 Benchmark]: RCFGBuilder took 486.06ms. Allocated memory is still 436.2MB. Free memory was 405.8MB in the beginning and 388.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 02:51:48,970 INFO L158 Benchmark]: TraceAbstraction took 52233.59ms. Allocated memory was 436.2MB in the beginning and 8.0GB in the end (delta: 7.6GB). Free memory was 386.9MB in the beginning and 6.2GB in the end (delta: -5.8GB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. [2022-01-18 02:51:48,973 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 362.8MB. Free memory is still 325.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 334.34ms. Allocated memory was 362.8MB in the beginning and 436.2MB in the end (delta: 73.4MB). Free memory was 309.1MB in the beginning and 408.9MB in the end (delta: -99.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.37ms. Allocated memory is still 436.2MB. Free memory was 408.9MB in the beginning and 406.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 44.94ms. Allocated memory is still 436.2MB. Free memory was 406.8MB in the beginning and 405.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 486.06ms. Allocated memory is still 436.2MB. Free memory was 405.8MB in the beginning and 388.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 52233.59ms. Allocated memory was 436.2MB in the beginning and 8.0GB in the end (delta: 7.6GB). Free memory was 386.9MB in the beginning and 6.2GB in the end (delta: -5.8GB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. * 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 - PositiveResult [Line: 103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 206 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 52.1s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.9s, AutomataDifference: 25.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21835 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21835 mSDsluCounter, 35724 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34137 mSDsCounter, 987 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14774 IncrementalHoareTripleChecker+Invalid, 15761 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 987 mSolverCounterUnsat, 3780 mSDtfsCounter, 14774 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5096 GetRequests, 4245 SyntacticMatches, 19 SemanticMatches, 832 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35552 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57969occurred in iteration=15, InterpolantAutomatonStates: 629, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 101285 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 4840 NumberOfCodeBlocks, 4776 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 6965 ConstructedInterpolants, 0 QuantifiedInterpolants, 19434 SizeOfPredicates, 102 NumberOfNonLiveVariables, 4733 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 40 InterpolantComputations, 7 PerfectInterpolantSequences, 1347/1754 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 02:51:49,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...