/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:11:16,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:11:16,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:11:16,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 14:11:16,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:11:16,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:11:16,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:11:16,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 14:11:16,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:11:16,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:11:16,887 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:11:16,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:11:16,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:11:16,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:11:16,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:11:16,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:11:16,889 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:11:16,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:11:16,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:11:16,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:11:16,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:11:16,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:11:16,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:11:16,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:11:16,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:11:16,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:11:16,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:11:16,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:11:16,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:11:16,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:11:16,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:11:16,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:11:16,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:11:16,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:11:16,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:11:16,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:11:16,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:11:16,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:11:16,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:11:16,892 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:11:16,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:11:16,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:11:17,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:11:17,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:11:17,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:11:17,118 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:11:17,118 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:11:17,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2022-03-15 14:11:17,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d717271/622ffc6f1037498ea6dd58e506055cf4/FLAGcca15734f [2022-03-15 14:11:17,536 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:11:17,536 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2022-03-15 14:11:17,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d717271/622ffc6f1037498ea6dd58e506055cf4/FLAGcca15734f [2022-03-15 14:11:17,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d717271/622ffc6f1037498ea6dd58e506055cf4 [2022-03-15 14:11:17,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:11:17,558 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:11:17,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:11:17,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:11:17,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:11:17,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cf7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17, skipping insertion in model container [2022-03-15 14:11:17,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:11:17,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:11:17,773 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-min-max-dec.wvr.c[3019,3032] [2022-03-15 14:11:17,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:11:17,792 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:11:17,815 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-min-max-dec.wvr.c[3019,3032] [2022-03-15 14:11:17,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:11:17,837 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:11:17,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17 WrapperNode [2022-03-15 14:11:17,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:11:17,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:11:17,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:11:17,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:11:17,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,873 INFO L137 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2022-03-15 14:11:17,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:11:17,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:11:17,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:11:17,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:11:17,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:11:17,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:11:17,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:11:17,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:11:17,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (1/1) ... [2022-03-15 14:11:17,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:11:17,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:17,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 14:11:17,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 14:11:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:11:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:11:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:11:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:11:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:11:17,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:11:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:11:17,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:11:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 14:11:17,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 14:11:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 14:11:17,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 14:11:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:11:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:11:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:11:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 14:11:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:11:17,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:11:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:11:17,972 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 14:11:18,103 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:11:18,104 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:11:18,437 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:11:18,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:11:18,505 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 14:11:18,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:11:18 BoogieIcfgContainer [2022-03-15 14:11:18,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:11:18,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:11:18,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:11:18,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:11:18,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:11:17" (1/3) ... [2022-03-15 14:11:18,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b8fa0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:11:18, skipping insertion in model container [2022-03-15 14:11:18,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:11:17" (2/3) ... [2022-03-15 14:11:18,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b8fa0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:11:18, skipping insertion in model container [2022-03-15 14:11:18,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:11:18" (3/3) ... [2022-03-15 14:11:18,515 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-min-max-dec.wvr.c [2022-03-15 14:11:18,519 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:11:18,520 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:11:18,520 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:11:18,520 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:11:18,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,580 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,580 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,580 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,580 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,580 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,581 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,585 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,589 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,590 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,590 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,591 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,591 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,591 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,592 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,592 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,592 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,592 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,593 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,593 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,594 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,597 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,601 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,601 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,603 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,604 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,604 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,613 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,614 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,614 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,614 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,614 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,615 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,615 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,616 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,616 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,616 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,616 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,617 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,617 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,617 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,617 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,617 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,617 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,618 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,618 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,618 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,618 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,622 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,623 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,623 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,623 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,623 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,623 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,623 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,624 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,624 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,625 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,625 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,625 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,626 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,627 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,627 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,627 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,628 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:11:18,633 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 14:11:18,671 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:11:18,677 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 14:11:18,677 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 14:11:18,690 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 173 places, 172 transitions, 376 flow [2022-03-15 14:11:20,049 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26140 states, 26139 states have (on average 4.557289873369295) internal successors, (119123), 26139 states have internal predecessors, (119123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:20,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 26140 states, 26139 states have (on average 4.557289873369295) internal successors, (119123), 26139 states have internal predecessors, (119123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-15 14:11:20,429 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:20,429 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] [2022-03-15 14:11:20,431 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:20,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:20,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1420994164, now seen corresponding path program 1 times [2022-03-15 14:11:20,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:20,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908469671] [2022-03-15 14:11:20,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:11:20,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:20,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908469671] [2022-03-15 14:11:20,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908469671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:11:20,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:11:20,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 14:11:20,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641156600] [2022-03-15 14:11:20,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:11:20,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 14:11:20,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:20,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 14:11:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:11:20,886 INFO L87 Difference]: Start difference. First operand has 26140 states, 26139 states have (on average 4.557289873369295) internal successors, (119123), 26139 states have internal predecessors, (119123), 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 60.5) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:21,386 INFO L93 Difference]: Finished difference Result 26140 states and 111710 transitions. [2022-03-15 14:11:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 14:11:21,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 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 121 [2022-03-15 14:11:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:21,782 INFO L225 Difference]: With dead ends: 26140 [2022-03-15 14:11:21,782 INFO L226 Difference]: Without dead ends: 26136 [2022-03-15 14:11:21,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:11:21,788 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:21,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:11:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26136 states. [2022-03-15 14:11:22,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26136 to 26136. [2022-03-15 14:11:23,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26136 states, 26135 states have (on average 4.274191696958102) internal successors, (111706), 26135 states have internal predecessors, (111706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:23,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26136 states to 26136 states and 111706 transitions. [2022-03-15 14:11:23,379 INFO L78 Accepts]: Start accepts. Automaton has 26136 states and 111706 transitions. Word has length 121 [2022-03-15 14:11:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:23,379 INFO L470 AbstractCegarLoop]: Abstraction has 26136 states and 111706 transitions. [2022-03-15 14:11:23,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 26136 states and 111706 transitions. [2022-03-15 14:11:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-15 14:11:23,523 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:23,523 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] [2022-03-15 14:11:23,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:11:23,524 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:23,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:23,525 INFO L85 PathProgramCache]: Analyzing trace with hash -507464182, now seen corresponding path program 1 times [2022-03-15 14:11:23,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:23,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249998611] [2022-03-15 14:11:23,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:23,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:11:23,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:23,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249998611] [2022-03-15 14:11:23,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249998611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:11:23,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:11:23,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:11:23,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054363887] [2022-03-15 14:11:23,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:11:23,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:11:23,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:23,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:11:23,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:11:23,773 INFO L87 Difference]: Start difference. First operand 26136 states and 111706 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:24,369 INFO L93 Difference]: Finished difference Result 35136 states and 150562 transitions. [2022-03-15 14:11:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:11:24,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 121 [2022-03-15 14:11:24,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:24,594 INFO L225 Difference]: With dead ends: 35136 [2022-03-15 14:11:24,594 INFO L226 Difference]: Without dead ends: 35136 [2022-03-15 14:11:24,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:11:24,596 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 352 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:24,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 319 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:11:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35136 states. [2022-03-15 14:11:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35136 to 28386. [2022-03-15 14:11:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28386 states, 28385 states have (on average 4.277611414479479) internal successors, (121420), 28385 states have internal predecessors, (121420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:26,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28386 states to 28386 states and 121420 transitions. [2022-03-15 14:11:26,029 INFO L78 Accepts]: Start accepts. Automaton has 28386 states and 121420 transitions. Word has length 121 [2022-03-15 14:11:26,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:26,030 INFO L470 AbstractCegarLoop]: Abstraction has 28386 states and 121420 transitions. [2022-03-15 14:11:26,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:26,030 INFO L276 IsEmpty]: Start isEmpty. Operand 28386 states and 121420 transitions. [2022-03-15 14:11:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-15 14:11:26,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:26,326 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] [2022-03-15 14:11:26,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:11:26,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:26,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1313580435, now seen corresponding path program 1 times [2022-03-15 14:11:26,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:26,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205173473] [2022-03-15 14:11:26,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:26,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:26,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:11:26,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:26,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205173473] [2022-03-15 14:11:26,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205173473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:11:26,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:11:26,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 14:11:26,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239383141] [2022-03-15 14:11:26,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:11:26,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:11:26,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:26,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:11:26,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:11:26,485 INFO L87 Difference]: Start difference. First operand 28386 states and 121420 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:27,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:27,011 INFO L93 Difference]: Finished difference Result 37401 states and 158042 transitions. [2022-03-15 14:11:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 14:11:27,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-03-15 14:11:27,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:27,233 INFO L225 Difference]: With dead ends: 37401 [2022-03-15 14:11:27,233 INFO L226 Difference]: Without dead ends: 28392 [2022-03-15 14:11:27,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:11:27,235 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 425 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:27,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 475 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:11:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28392 states. [2022-03-15 14:11:28,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28392 to 28387. [2022-03-15 14:11:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28387 states, 28386 states have (on average 4.277495948707109) internal successors, (121421), 28386 states have internal predecessors, (121421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28387 states to 28387 states and 121421 transitions. [2022-03-15 14:11:28,422 INFO L78 Accepts]: Start accepts. Automaton has 28387 states and 121421 transitions. Word has length 126 [2022-03-15 14:11:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:28,422 INFO L470 AbstractCegarLoop]: Abstraction has 28387 states and 121421 transitions. [2022-03-15 14:11:28,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 28387 states and 121421 transitions. [2022-03-15 14:11:28,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-15 14:11:28,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:28,500 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] [2022-03-15 14:11:28,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:11:28,500 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1766570838, now seen corresponding path program 1 times [2022-03-15 14:11:28,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:28,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18652603] [2022-03-15 14:11:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:28,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:28,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18652603] [2022-03-15 14:11:28,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18652603] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:28,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423545926] [2022-03-15 14:11:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:28,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:28,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:28,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:28,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 14:11:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:28,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-15 14:11:28,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:29,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:29,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423545926] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:29,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 14:11:29,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-15 14:11:29,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162874123] [2022-03-15 14:11:29,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:11:29,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:11:29,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:29,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:11:29,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:11:29,750 INFO L87 Difference]: Start difference. First operand 28387 states and 121421 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:30,071 INFO L93 Difference]: Finished difference Result 30943 states and 132410 transitions. [2022-03-15 14:11:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:11:30,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 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 133 [2022-03-15 14:11:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:30,231 INFO L225 Difference]: With dead ends: 30943 [2022-03-15 14:11:30,232 INFO L226 Difference]: Without dead ends: 30943 [2022-03-15 14:11:30,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-15 14:11:30,233 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 280 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:30,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 368 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:11:30,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30943 states. [2022-03-15 14:11:31,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30943 to 30943. [2022-03-15 14:11:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30943 states, 30942 states have (on average 4.279296748755737) internal successors, (132410), 30942 states have internal predecessors, (132410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30943 states to 30943 states and 132410 transitions. [2022-03-15 14:11:31,348 INFO L78 Accepts]: Start accepts. Automaton has 30943 states and 132410 transitions. Word has length 133 [2022-03-15 14:11:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:31,348 INFO L470 AbstractCegarLoop]: Abstraction has 30943 states and 132410 transitions. [2022-03-15 14:11:31,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 30943 states and 132410 transitions. [2022-03-15 14:11:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-15 14:11:31,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:31,695 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] [2022-03-15 14:11:31,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 14:11:31,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:31,908 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:31,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:31,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1027911653, now seen corresponding path program 1 times [2022-03-15 14:11:31,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:31,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716602380] [2022-03-15 14:11:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:31,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:32,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:32,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716602380] [2022-03-15 14:11:32,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716602380] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:32,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063338797] [2022-03-15 14:11:32,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:32,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:32,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:32,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:32,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 14:11:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:32,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-15 14:11:32,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:32,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:32,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063338797] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:32,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 14:11:32,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-15 14:11:32,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008459311] [2022-03-15 14:11:32,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:11:32,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:11:32,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:32,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:11:32,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:11:32,779 INFO L87 Difference]: Start difference. First operand 30943 states and 132410 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:33,353 INFO L93 Difference]: Finished difference Result 34267 states and 146807 transitions. [2022-03-15 14:11:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:11:33,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 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 138 [2022-03-15 14:11:33,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:33,524 INFO L225 Difference]: With dead ends: 34267 [2022-03-15 14:11:33,524 INFO L226 Difference]: Without dead ends: 34267 [2022-03-15 14:11:33,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 268 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-15 14:11:33,525 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 240 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:33,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 410 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:11:33,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34267 states. [2022-03-15 14:11:34,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34267 to 34267. [2022-03-15 14:11:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34267 states, 34266 states have (on average 4.284334325570536) internal successors, (146807), 34266 states have internal predecessors, (146807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34267 states to 34267 states and 146807 transitions. [2022-03-15 14:11:34,776 INFO L78 Accepts]: Start accepts. Automaton has 34267 states and 146807 transitions. Word has length 138 [2022-03-15 14:11:34,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:34,777 INFO L470 AbstractCegarLoop]: Abstraction has 34267 states and 146807 transitions. [2022-03-15 14:11:34,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 34267 states and 146807 transitions. [2022-03-15 14:11:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:11:34,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:34,874 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] [2022-03-15 14:11:34,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 14:11:35,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:35,080 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:35,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:35,080 INFO L85 PathProgramCache]: Analyzing trace with hash 334563494, now seen corresponding path program 1 times [2022-03-15 14:11:35,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:35,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797003386] [2022-03-15 14:11:35,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:35,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:11:35,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:35,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797003386] [2022-03-15 14:11:35,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797003386] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:35,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640873705] [2022-03-15 14:11:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:35,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:35,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:35,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:35,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 14:11:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:35,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 36 conjunts are in the unsatisfiable core [2022-03-15 14:11:35,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:35,899 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-15 14:11:36,044 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:11:36,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:36,237 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:11:36,269 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-15 14:11:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:36,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:36,735 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-03-15 14:11:36,968 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse2 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork0_~i~0 4))))) (let ((.cse1 (< c_~min~0 .cse2)) (.cse3 (+ .cse0 1))) (and (or .cse1 (<= .cse2 .cse3)) (or (not .cse1) (<= c_~min~0 .cse3)))))))) is different from false [2022-03-15 14:11:37,244 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse1 (+ .cse0 1)) (.cse2 (< c_~min~0 .cse3))) (and (or (<= c_~min~0 .cse1) (not .cse2)) (or (<= .cse3 .cse1) .cse2))))))) is different from false [2022-03-15 14:11:37,295 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) c_~A~0.base) c_~A~0.offset))) (or (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (+ .cse0 1)) (<= 2147483647 .cse0)))) is different from false [2022-03-15 14:11:37,322 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int)) (v_ArrVal_181 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_181))) (let ((.cse1 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) c_~A~0.base) c_~A~0.offset))) (or (<= (select (select .cse0 c_~A~0.base) c_~A~0.offset) (+ .cse1 1)) (<= 2147483647 .cse1))))) is different from false [2022-03-15 14:11:37,367 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int)) (v_ArrVal_181 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_181))) (let ((.cse1 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) |c_ULTIMATE.start_main_#t~ret16#1.base|) |c_ULTIMATE.start_main_#t~ret16#1.offset|))) (or (<= (select (select .cse0 |c_ULTIMATE.start_main_#t~ret16#1.base|) |c_ULTIMATE.start_main_#t~ret16#1.offset|) (+ .cse1 1)) (<= 2147483647 .cse1))))) is different from false [2022-03-15 14:11:37,395 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int)) (v_ArrVal_181 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_181))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (or (<= 2147483647 .cse0) (<= (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (+ .cse0 1)))))) is different from false [2022-03-15 14:11:37,406 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_182 (Array Int Int)) (v_ArrVal_181 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_181))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_182) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (<= 2147483647 .cse0) (<= (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (+ .cse0 1)))))) is different from false [2022-03-15 14:11:37,462 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:11:37,463 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 48 [2022-03-15 14:11:37,468 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 343 [2022-03-15 14:11:37,478 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 80 [2022-03-15 14:11:37,484 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-03-15 14:11:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-03-15 14:11:37,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640873705] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:11:37,623 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:11:37,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 18] total 41 [2022-03-15 14:11:37,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472412263] [2022-03-15 14:11:37,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:11:37,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-15 14:11:37,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:37,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-15 14:11:37,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=956, Unknown=8, NotChecked=552, Total=1640 [2022-03-15 14:11:37,625 INFO L87 Difference]: Start difference. First operand 34267 states and 146807 transitions. Second operand has 41 states, 41 states have (on average 9.146341463414634) internal successors, (375), 41 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:45,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:45,981 INFO L93 Difference]: Finished difference Result 402126 states and 1738565 transitions. [2022-03-15 14:11:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-15 14:11:45,981 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 9.146341463414634) internal successors, (375), 41 states have internal predecessors, (375), 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 143 [2022-03-15 14:11:45,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:47,668 INFO L225 Difference]: With dead ends: 402126 [2022-03-15 14:11:47,669 INFO L226 Difference]: Without dead ends: 194037 [2022-03-15 14:11:47,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 265 SyntacticMatches, 5 SemanticMatches, 94 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1800 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1749, Invalid=5931, Unknown=8, NotChecked=1432, Total=9120 [2022-03-15 14:11:47,671 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 2175 mSDsluCounter, 5810 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 5713 SdHoareTripleChecker+Invalid, 6770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4677 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:47,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2175 Valid, 5713 Invalid, 6770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1978 Invalid, 0 Unknown, 4677 Unchecked, 1.2s Time] [2022-03-15 14:11:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194037 states. [2022-03-15 14:11:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194037 to 35853. [2022-03-15 14:11:51,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35853 states, 35852 states have (on average 4.236778980252148) internal successors, (151897), 35852 states have internal predecessors, (151897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35853 states to 35853 states and 151897 transitions. [2022-03-15 14:11:52,576 INFO L78 Accepts]: Start accepts. Automaton has 35853 states and 151897 transitions. Word has length 143 [2022-03-15 14:11:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:52,576 INFO L470 AbstractCegarLoop]: Abstraction has 35853 states and 151897 transitions. [2022-03-15 14:11:52,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 9.146341463414634) internal successors, (375), 41 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:52,577 INFO L276 IsEmpty]: Start isEmpty. Operand 35853 states and 151897 transitions. [2022-03-15 14:11:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:11:52,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:52,733 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] [2022-03-15 14:11:52,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 14:11:52,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:52,938 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:52,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:52,938 INFO L85 PathProgramCache]: Analyzing trace with hash 940179670, now seen corresponding path program 2 times [2022-03-15 14:11:52,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:52,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71821670] [2022-03-15 14:11:52,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:52,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:53,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:53,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71821670] [2022-03-15 14:11:53,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71821670] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:53,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679806691] [2022-03-15 14:11:53,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:11:53,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:53,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:53,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:53,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 14:11:53,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:11:53,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:11:53,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-15 14:11:53,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:53,520 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:11:53,561 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-03-15 14:11:53,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-03-15 14:11:53,779 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:11:53,779 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:11:54,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:54,185 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:11:54,248 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:11:54,276 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-15 14:11:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:11:54,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:54,696 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_230 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_230) c_~A~0.base) c_~A~0.offset))) (or (<= c_~min~0 (+ .cse0 1)) (<= 2147483647 .cse0)))) is different from false [2022-03-15 14:11:54,738 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_229 (Array Int Int)) (v_ArrVal_230 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_230) c_~A~0.base) c_~A~0.offset))) (or (<= c_~min~0 (+ .cse0 1)) (<= 2147483647 .cse0)))) is different from false [2022-03-15 14:11:54,869 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_229 (Array Int Int)) (v_ArrVal_230 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_230) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse2 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork0_~i~0 4))))) (let ((.cse1 (< c_~min~0 .cse2)) (.cse3 (+ .cse0 1))) (and (or .cse1 (<= .cse2 .cse3)) (or (not .cse1) (<= c_~min~0 .cse3)))))))) is different from false [2022-03-15 14:11:54,937 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_229 (Array Int Int)) (v_ArrVal_230 (Array Int Int))) (let ((.cse3 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_229) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_230) c_~A~0.base) c_~A~0.offset))) (or (let ((.cse1 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse2 (+ .cse3 1)) (.cse0 (< c_~min~0 .cse1))) (and (or .cse0 (<= .cse1 .cse2)) (or (<= c_~min~0 .cse2) (not .cse0))))) (<= 2147483647 .cse3)))) is different from false [2022-03-15 14:11:54,983 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 215 [2022-03-15 14:11:54,991 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 199 [2022-03-15 14:11:54,995 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 183 [2022-03-15 14:11:56,199 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-03-15 14:11:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 1 not checked. [2022-03-15 14:11:56,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679806691] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:11:56,244 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:11:56,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 20] total 43 [2022-03-15 14:11:56,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302213988] [2022-03-15 14:11:56,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:11:56,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-15 14:11:56,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:56,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-15 14:11:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1341, Unknown=4, NotChecked=308, Total=1806 [2022-03-15 14:11:56,246 INFO L87 Difference]: Start difference. First operand 35853 states and 151897 transitions. Second operand has 43 states, 43 states have (on average 8.325581395348838) internal successors, (358), 43 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:12:07,643 INFO L93 Difference]: Finished difference Result 448371 states and 1931078 transitions. [2022-03-15 14:12:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-15 14:12:07,644 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 8.325581395348838) internal successors, (358), 43 states have internal predecessors, (358), 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 143 [2022-03-15 14:12:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:12:10,167 INFO L225 Difference]: With dead ends: 448371 [2022-03-15 14:12:10,167 INFO L226 Difference]: Without dead ends: 267623 [2022-03-15 14:12:10,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 261 SyntacticMatches, 6 SemanticMatches, 132 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 4724 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3983, Invalid=12799, Unknown=4, NotChecked=1036, Total=17822 [2022-03-15 14:12:10,195 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 3000 mSDsluCounter, 5351 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 4743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2485 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:12:10,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3000 Valid, 5200 Invalid, 4743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 2025 Invalid, 0 Unknown, 2485 Unchecked, 1.6s Time] [2022-03-15 14:12:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267623 states. [2022-03-15 14:12:15,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267623 to 36609. [2022-03-15 14:12:15,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36609 states, 36608 states have (on average 4.219733391608392) internal successors, (154476), 36608 states have internal predecessors, (154476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36609 states to 36609 states and 154476 transitions. [2022-03-15 14:12:15,912 INFO L78 Accepts]: Start accepts. Automaton has 36609 states and 154476 transitions. Word has length 143 [2022-03-15 14:12:15,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:12:15,912 INFO L470 AbstractCegarLoop]: Abstraction has 36609 states and 154476 transitions. [2022-03-15 14:12:15,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.325581395348838) internal successors, (358), 43 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:15,912 INFO L276 IsEmpty]: Start isEmpty. Operand 36609 states and 154476 transitions. [2022-03-15 14:12:16,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:12:16,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:12:16,003 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] [2022-03-15 14:12:16,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-15 14:12:16,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:16,205 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:12:16,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:12:16,206 INFO L85 PathProgramCache]: Analyzing trace with hash -263687870, now seen corresponding path program 3 times [2022-03-15 14:12:16,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:12:16,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941060497] [2022-03-15 14:12:16,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:12:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:12:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:12:16,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:12:16,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:12:16,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941060497] [2022-03-15 14:12:16,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941060497] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:12:16,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693373820] [2022-03-15 14:12:16,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:12:16,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:16,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:12:16,680 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:12:16,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 14:12:16,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:12:16,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:12:16,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-15 14:12:16,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:12:18,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:12:18,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:12:18,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:12:18,299 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:12:18,376 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-15 14:12:18,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:12:18,465 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-03-15 14:12:18,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-03-15 14:12:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:12:18,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:12:18,770 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_279 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_279) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1))))) is different from false [2022-03-15 14:12:18,855 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 Int) (v_ArrVal_279 (Array Int Int))) (let ((.cse1 (select |c_#memory_int| c_~A~0.base)) (.cse2 (+ c_~A~0.offset (* 4 |c_thread3Thread1of1ForFork3_~i~2#1|)))) (let ((.cse0 (select (select (store (store |c_#memory_int| c_~A~0.base (store .cse1 .cse2 v_ArrVal_278)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_279) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1)) (not (<= (select .cse1 .cse2) (+ v_ArrVal_278 1))))))) is different from false [2022-03-15 14:12:18,897 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 Int) (v_ArrVal_279 (Array Int Int))) (let ((.cse1 (select |c_#memory_int| c_~A~0.base))) (let ((.cse0 (select (select (store (store |c_#memory_int| c_~A~0.base (store .cse1 c_~A~0.offset v_ArrVal_278)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_279) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (not (<= (select .cse1 c_~A~0.offset) (+ v_ArrVal_278 1))) (<= c_~min~0 (+ .cse0 1)))))) is different from false [2022-03-15 14:12:18,935 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 Int) (v_ArrVal_276 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_276))) (let ((.cse1 (select .cse2 c_~A~0.base))) (let ((.cse0 (select (select (store (store .cse2 c_~A~0.base (store .cse1 c_~A~0.offset v_ArrVal_278)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_279) c_~A~0.base) c_~A~0.offset))) (or (<= c_~min~0 (+ .cse0 1)) (<= 2147483647 .cse0) (not (<= (select .cse1 c_~A~0.offset) (+ v_ArrVal_278 1)))))))) is different from false [2022-03-15 14:12:19,031 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 Int) (v_ArrVal_276 (Array Int Int)) (v_ArrVal_275 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_275) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_276))) (let ((.cse1 (select .cse2 c_~A~0.base))) (let ((.cse0 (select (select (store (store .cse2 c_~A~0.base (store .cse1 c_~A~0.offset v_ArrVal_278)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_279) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= c_~min~0 (+ .cse0 1)) (not (<= (select .cse1 c_~A~0.offset) (+ v_ArrVal_278 1)))))))) is different from false [2022-03-15 14:12:19,329 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 Int) (v_ArrVal_276 (Array Int Int)) (v_ArrVal_275 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_275) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_276))) (let ((.cse4 (select .cse5 c_~A~0.base))) (let ((.cse0 (select (select (store (store .cse5 c_~A~0.base (store .cse4 c_~A~0.offset v_ArrVal_278)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_279) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork0_~i~0 4))))) (let ((.cse1 (< c_~min~0 .cse3)) (.cse2 (+ .cse0 1))) (and (or (not .cse1) (<= c_~min~0 .cse2)) (or .cse1 (<= .cse3 .cse2))))) (not (<= (select .cse4 c_~A~0.offset) (+ v_ArrVal_278 1)))))))) is different from false [2022-03-15 14:12:19,514 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 Int) (v_ArrVal_276 (Array Int Int)) (v_ArrVal_275 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_275) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_276))) (let ((.cse1 (select .cse5 c_~A~0.base))) (let ((.cse0 (select (select (store (store .cse5 c_~A~0.base (store .cse1 c_~A~0.offset v_ArrVal_278)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_279) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (not (<= (select .cse1 c_~A~0.offset) (+ v_ArrVal_278 1))) (let ((.cse3 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse4 (+ .cse0 1)) (.cse2 (< c_~min~0 .cse3))) (and (or .cse2 (<= .cse3 .cse4)) (or (<= c_~min~0 .cse4) (not .cse2)))))))))) is different from false [2022-03-15 14:12:19,619 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 279 [2022-03-15 14:12:19,624 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 203 [2022-03-15 14:12:19,630 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 58 [2022-03-15 14:12:19,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-03-15 14:12:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-03-15 14:12:20,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693373820] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:12:20,465 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:12:20,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 49 [2022-03-15 14:12:20,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653557364] [2022-03-15 14:12:20,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:12:20,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-15 14:12:20,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:12:20,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-15 14:12:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1554, Unknown=7, NotChecked=602, Total=2352 [2022-03-15 14:12:20,467 INFO L87 Difference]: Start difference. First operand 36609 states and 154476 transitions. Second operand has 49 states, 49 states have (on average 6.73469387755102) internal successors, (330), 49 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:30,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:12:30,512 INFO L93 Difference]: Finished difference Result 411059 states and 1780051 transitions. [2022-03-15 14:12:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-15 14:12:30,512 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 6.73469387755102) internal successors, (330), 49 states have internal predecessors, (330), 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 143 [2022-03-15 14:12:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:12:32,962 INFO L225 Difference]: With dead ends: 411059 [2022-03-15 14:12:32,962 INFO L226 Difference]: Without dead ends: 275631 [2022-03-15 14:12:32,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 259 SyntacticMatches, 11 SemanticMatches, 114 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 3176 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2630, Invalid=9163, Unknown=7, NotChecked=1540, Total=13340 [2022-03-15 14:12:32,965 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 5458 mSDsluCounter, 5362 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5458 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 7603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5196 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:12:32,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5458 Valid, 5392 Invalid, 7603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 2052 Invalid, 0 Unknown, 5196 Unchecked, 1.3s Time] [2022-03-15 14:12:33,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275631 states. [2022-03-15 14:12:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275631 to 35828. [2022-03-15 14:12:38,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35828 states, 35827 states have (on average 4.233622686800458) internal successors, (151678), 35827 states have internal predecessors, (151678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:38,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35828 states to 35828 states and 151678 transitions. [2022-03-15 14:12:38,651 INFO L78 Accepts]: Start accepts. Automaton has 35828 states and 151678 transitions. Word has length 143 [2022-03-15 14:12:38,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:12:38,651 INFO L470 AbstractCegarLoop]: Abstraction has 35828 states and 151678 transitions. [2022-03-15 14:12:38,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 6.73469387755102) internal successors, (330), 49 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 35828 states and 151678 transitions. [2022-03-15 14:12:38,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:12:38,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:12:38,735 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] [2022-03-15 14:12:38,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-15 14:12:38,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:38,945 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:12:38,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:12:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1870998198, now seen corresponding path program 4 times [2022-03-15 14:12:38,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:12:38,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000282718] [2022-03-15 14:12:38,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:12:38,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:12:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:12:39,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 14:12:39,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:12:39,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000282718] [2022-03-15 14:12:39,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000282718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:12:39,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:12:39,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:12:39,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107394121] [2022-03-15 14:12:39,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:12:39,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:12:39,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:12:39,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:12:39,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:12:39,108 INFO L87 Difference]: Start difference. First operand 35828 states and 151678 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:40,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:12:40,284 INFO L93 Difference]: Finished difference Result 51233 states and 218839 transitions. [2022-03-15 14:12:40,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:12:40,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 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 143 [2022-03-15 14:12:40,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:12:40,403 INFO L225 Difference]: With dead ends: 51233 [2022-03-15 14:12:40,403 INFO L226 Difference]: Without dead ends: 32549 [2022-03-15 14:12:40,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:12:40,406 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 56 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:12:40,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 698 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:12:40,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32549 states. [2022-03-15 14:12:41,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32549 to 32426. [2022-03-15 14:12:41,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32426 states, 32425 states have (on average 4.1830377794911335) internal successors, (135635), 32425 states have internal predecessors, (135635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:41,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32426 states to 32426 states and 135635 transitions. [2022-03-15 14:12:41,699 INFO L78 Accepts]: Start accepts. Automaton has 32426 states and 135635 transitions. Word has length 143 [2022-03-15 14:12:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:12:41,699 INFO L470 AbstractCegarLoop]: Abstraction has 32426 states and 135635 transitions. [2022-03-15 14:12:41,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 32426 states and 135635 transitions. [2022-03-15 14:12:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:12:41,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:12:41,781 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] [2022-03-15 14:12:41,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 14:12:41,781 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:12:41,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:12:41,781 INFO L85 PathProgramCache]: Analyzing trace with hash -342153556, now seen corresponding path program 5 times [2022-03-15 14:12:41,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:12:41,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278486457] [2022-03-15 14:12:41,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:12:41,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:12:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:12:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:12:41,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:12:41,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278486457] [2022-03-15 14:12:41,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278486457] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:12:41,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258231288] [2022-03-15 14:12:41,924 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:12:41,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:41,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:12:41,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:12:41,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 14:12:42,047 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-15 14:12:42,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:12:42,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-15 14:12:42,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:12:42,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-15 14:12:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:12:42,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:12:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:12:42,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258231288] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:12:42,796 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:12:42,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14, 9] total 23 [2022-03-15 14:12:42,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860090164] [2022-03-15 14:12:42,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:12:42,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 14:12:42,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:12:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 14:12:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:12:42,797 INFO L87 Difference]: Start difference. First operand 32426 states and 135635 transitions. Second operand has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:47,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:12:47,158 INFO L93 Difference]: Finished difference Result 262615 states and 1127592 transitions. [2022-03-15 14:12:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 14:12:47,158 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 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 143 [2022-03-15 14:12:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:12:47,833 INFO L225 Difference]: With dead ends: 262615 [2022-03-15 14:12:47,834 INFO L226 Difference]: Without dead ends: 118025 [2022-03-15 14:12:47,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1002 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1111, Invalid=3445, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 14:12:47,835 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1694 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:12:47,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1694 Valid, 3823 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:12:48,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118025 states. [2022-03-15 14:12:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118025 to 36452. [2022-03-15 14:12:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36452 states, 36451 states have (on average 4.1564017448080985) internal successors, (151505), 36451 states have internal predecessors, (151505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:50,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36452 states to 36452 states and 151505 transitions. [2022-03-15 14:12:50,915 INFO L78 Accepts]: Start accepts. Automaton has 36452 states and 151505 transitions. Word has length 143 [2022-03-15 14:12:50,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:12:50,915 INFO L470 AbstractCegarLoop]: Abstraction has 36452 states and 151505 transitions. [2022-03-15 14:12:50,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.73913043478261) internal successors, (293), 23 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:50,915 INFO L276 IsEmpty]: Start isEmpty. Operand 36452 states and 151505 transitions. [2022-03-15 14:12:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:12:51,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:12:51,006 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] [2022-03-15 14:12:51,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 14:12:51,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:51,219 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:12:51,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:12:51,220 INFO L85 PathProgramCache]: Analyzing trace with hash 296544674, now seen corresponding path program 6 times [2022-03-15 14:12:51,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:12:51,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979624694] [2022-03-15 14:12:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:12:51,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:12:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:12:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:12:51,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:12:51,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979624694] [2022-03-15 14:12:51,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979624694] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:12:51,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421445928] [2022-03-15 14:12:51,593 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:12:51,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:51,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:12:51,595 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:12:51,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 14:12:51,700 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 14:12:51,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:12:51,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-15 14:12:51,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:12:51,738 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:12:51,762 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-03-15 14:12:51,763 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-03-15 14:12:51,812 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:12:51,812 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:12:51,971 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:12:52,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-15 14:12:52,143 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-03-15 14:12:52,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:12:52,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:12:53,229 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_392 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_392) c_~A~0.base) c_~A~0.offset) (+ c_~max~0 2))) (<= 2147483647 c_~max~0)) is different from false [2022-03-15 14:12:53,261 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-03-15 14:12:53,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-03-15 14:12:53,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421445928] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:12:53,535 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:12:53,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 42 [2022-03-15 14:12:53,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081780055] [2022-03-15 14:12:53,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:12:53,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-15 14:12:53,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:12:53,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-15 14:12:53,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1451, Unknown=1, NotChecked=78, Total=1722 [2022-03-15 14:12:53,537 INFO L87 Difference]: Start difference. First operand 36452 states and 151505 transitions. Second operand has 42 states, 42 states have (on average 8.30952380952381) internal successors, (349), 42 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:12:58,866 INFO L93 Difference]: Finished difference Result 246690 states and 1053612 transitions. [2022-03-15 14:12:58,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 14:12:58,867 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 8.30952380952381) internal successors, (349), 42 states have internal predecessors, (349), 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 143 [2022-03-15 14:12:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:12:59,881 INFO L225 Difference]: With dead ends: 246690 [2022-03-15 14:12:59,881 INFO L226 Difference]: Without dead ends: 172329 [2022-03-15 14:12:59,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 279 SyntacticMatches, 8 SemanticMatches, 91 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2059 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1652, Invalid=6723, Unknown=1, NotChecked=180, Total=8556 [2022-03-15 14:12:59,883 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 2674 mSDsluCounter, 5630 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2674 SdHoareTripleChecker+Valid, 5567 SdHoareTripleChecker+Invalid, 2625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 925 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:12:59,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2674 Valid, 5567 Invalid, 2625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1576 Invalid, 0 Unknown, 925 Unchecked, 0.8s Time] [2022-03-15 14:13:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172329 states. [2022-03-15 14:13:03,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172329 to 35905. [2022-03-15 14:13:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35905 states, 35904 states have (on average 4.15371546345811) internal successors, (149135), 35904 states have internal predecessors, (149135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35905 states to 35905 states and 149135 transitions. [2022-03-15 14:13:03,381 INFO L78 Accepts]: Start accepts. Automaton has 35905 states and 149135 transitions. Word has length 143 [2022-03-15 14:13:03,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:13:03,381 INFO L470 AbstractCegarLoop]: Abstraction has 35905 states and 149135 transitions. [2022-03-15 14:13:03,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 8.30952380952381) internal successors, (349), 42 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 35905 states and 149135 transitions. [2022-03-15 14:13:03,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:13:03,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:13:03,910 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] [2022-03-15 14:13:03,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-15 14:13:04,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:04,148 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:13:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:13:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash 929095160, now seen corresponding path program 7 times [2022-03-15 14:13:04,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:13:04,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749678042] [2022-03-15 14:13:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:13:04,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:13:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:13:04,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:13:04,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749678042] [2022-03-15 14:13:04,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749678042] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:13:04,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037758647] [2022-03-15 14:13:04,482 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 14:13:04,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:04,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:13:04,484 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:13:04,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 14:13:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:04,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 35 conjunts are in the unsatisfiable core [2022-03-15 14:13:04,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:13:04,616 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:13:04,731 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:13:04,731 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:13:04,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:13:04,980 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:13:05,041 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-15 14:13:05,088 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-03-15 14:13:05,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-03-15 14:13:05,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:13:05,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:13:05,476 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_443 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_443) c_~A~0.base) c_~A~0.offset) (+ c_~max~0 1))) (<= 2147483647 c_~max~0)) is different from false [2022-03-15 14:13:05,529 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_442 Int) (v_ArrVal_443 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| c_~A~0.base)) (.cse1 (+ c_~A~0.offset (* 4 |c_thread3Thread1of1ForFork3_~i~2#1|)))) (or (<= (select (select (store (store |c_#memory_int| c_~A~0.base (store .cse0 .cse1 v_ArrVal_442)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_443) c_~A~0.base) c_~A~0.offset) (+ c_~max~0 1)) (not (<= (+ v_ArrVal_442 1) (select .cse0 .cse1)))))) (<= 2147483647 c_~max~0)) is different from false [2022-03-15 14:13:05,550 WARN L838 $PredicateComparison]: unable to prove that (or (<= 2147483647 c_~max~0) (forall ((v_ArrVal_442 Int) (v_ArrVal_443 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| c_~A~0.base))) (or (<= (select (select (store (store |c_#memory_int| c_~A~0.base (store .cse0 c_~A~0.offset v_ArrVal_442)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_443) c_~A~0.base) c_~A~0.offset) (+ c_~max~0 1)) (not (<= (+ v_ArrVal_442 1) (select .cse0 c_~A~0.offset))))))) is different from false [2022-03-15 14:13:05,580 WARN L838 $PredicateComparison]: unable to prove that (or (<= 2147483647 c_~max~0) (forall ((v_ArrVal_442 Int) (v_ArrVal_440 (Array Int Int)) (v_ArrVal_443 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_440))) (let ((.cse0 (select .cse1 c_~A~0.base))) (or (not (<= (+ v_ArrVal_442 1) (select .cse0 c_~A~0.offset))) (<= (select (select (store (store .cse1 c_~A~0.base (store .cse0 c_~A~0.offset v_ArrVal_442)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_443) c_~A~0.base) c_~A~0.offset) (+ c_~max~0 1))))))) is different from false [2022-03-15 14:13:05,673 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 81 [2022-03-15 14:13:05,679 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2022-03-15 14:13:05,685 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-03-15 14:13:06,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-03-15 14:13:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-03-15 14:13:06,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037758647] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:13:06,159 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:13:06,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 42 [2022-03-15 14:13:06,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582189216] [2022-03-15 14:13:06,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:13:06,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-15 14:13:06,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:13:06,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-15 14:13:06,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1266, Unknown=4, NotChecked=300, Total=1722 [2022-03-15 14:13:06,161 INFO L87 Difference]: Start difference. First operand 35905 states and 149135 transitions. Second operand has 42 states, 42 states have (on average 7.428571428571429) internal successors, (312), 42 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:13:12,244 INFO L93 Difference]: Finished difference Result 218504 states and 940917 transitions. [2022-03-15 14:13:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-15 14:13:12,244 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.428571428571429) internal successors, (312), 42 states have internal predecessors, (312), 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 143 [2022-03-15 14:13:12,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:13:13,537 INFO L225 Difference]: With dead ends: 218504 [2022-03-15 14:13:13,539 INFO L226 Difference]: Without dead ends: 110408 [2022-03-15 14:13:13,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 263 SyntacticMatches, 7 SemanticMatches, 90 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1645 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1763, Invalid=5905, Unknown=4, NotChecked=700, Total=8372 [2022-03-15 14:13:13,541 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 3087 mSDsluCounter, 5766 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3087 SdHoareTripleChecker+Valid, 5790 SdHoareTripleChecker+Invalid, 4152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1995 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:13:13,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3087 Valid, 5790 Invalid, 4152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1998 Invalid, 0 Unknown, 1995 Unchecked, 1.1s Time] [2022-03-15 14:13:13,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110408 states. [2022-03-15 14:13:15,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110408 to 30968. [2022-03-15 14:13:15,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30968 states, 30967 states have (on average 4.143798236832757) internal successors, (128321), 30967 states have internal predecessors, (128321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30968 states to 30968 states and 128321 transitions. [2022-03-15 14:13:15,837 INFO L78 Accepts]: Start accepts. Automaton has 30968 states and 128321 transitions. Word has length 143 [2022-03-15 14:13:15,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:13:15,838 INFO L470 AbstractCegarLoop]: Abstraction has 30968 states and 128321 transitions. [2022-03-15 14:13:15,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.428571428571429) internal successors, (312), 42 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 30968 states and 128321 transitions. [2022-03-15 14:13:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-15 14:13:15,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:13:15,911 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] [2022-03-15 14:13:15,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-15 14:13:16,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-15 14:13:16,120 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:13:16,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:13:16,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1049396362, now seen corresponding path program 8 times [2022-03-15 14:13:16,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:13:16,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220564412] [2022-03-15 14:13:16,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:13:16,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:13:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 14:13:16,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:13:16,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220564412] [2022-03-15 14:13:16,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220564412] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:13:16,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574883703] [2022-03-15 14:13:16,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:13:16,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:16,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:13:16,201 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:13:16,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 14:13:16,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:13:16,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:13:16,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 14:13:16,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:13:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 14:13:16,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:13:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 14:13:16,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574883703] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:13:16,839 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:13:16,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-03-15 14:13:16,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725844470] [2022-03-15 14:13:16,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:13:16,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:13:16,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:13:16,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:13:16,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:13:16,841 INFO L87 Difference]: Start difference. First operand 30968 states and 128321 transitions. Second operand has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:17,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:13:17,566 INFO L93 Difference]: Finished difference Result 41375 states and 173574 transitions. [2022-03-15 14:13:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:13:17,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 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 143 [2022-03-15 14:13:17,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:13:17,665 INFO L225 Difference]: With dead ends: 41375 [2022-03-15 14:13:17,665 INFO L226 Difference]: Without dead ends: 24774 [2022-03-15 14:13:17,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-15 14:13:17,666 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 42 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:13:17,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 890 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:13:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24774 states. [2022-03-15 14:13:18,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24774 to 24764. [2022-03-15 14:13:18,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24764 states, 24763 states have (on average 4.126277106974115) internal successors, (102179), 24763 states have internal predecessors, (102179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:18,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24764 states to 24764 states and 102179 transitions. [2022-03-15 14:13:18,444 INFO L78 Accepts]: Start accepts. Automaton has 24764 states and 102179 transitions. Word has length 143 [2022-03-15 14:13:18,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:13:18,444 INFO L470 AbstractCegarLoop]: Abstraction has 24764 states and 102179 transitions. [2022-03-15 14:13:18,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:18,445 INFO L276 IsEmpty]: Start isEmpty. Operand 24764 states and 102179 transitions. [2022-03-15 14:13:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-15 14:13:18,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:13:18,501 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:13:18,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-15 14:13:18,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-15 14:13:18,702 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:13:18,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:13:18,702 INFO L85 PathProgramCache]: Analyzing trace with hash 225436057, now seen corresponding path program 9 times [2022-03-15 14:13:18,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:13:18,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664964422] [2022-03-15 14:13:18,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:13:18,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:13:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:13:18,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:13:18,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664964422] [2022-03-15 14:13:18,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664964422] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:13:18,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733568520] [2022-03-15 14:13:18,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:13:18,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:18,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:13:18,818 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:13:18,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-15 14:13:18,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-15 14:13:18,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:13:18,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 14:13:18,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:13:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:13:19,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:13:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:13:19,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733568520] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:13:19,378 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:13:19,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2022-03-15 14:13:19,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187684116] [2022-03-15 14:13:19,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:13:19,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 14:13:19,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:13:19,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 14:13:19,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-15 14:13:19,379 INFO L87 Difference]: Start difference. First operand 24764 states and 102179 transitions. Second operand has 19 states, 19 states have (on average 11.0) internal successors, (209), 19 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:20,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:13:20,787 INFO L93 Difference]: Finished difference Result 49980 states and 205385 transitions. [2022-03-15 14:13:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-15 14:13:20,787 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.0) internal successors, (209), 19 states have internal predecessors, (209), 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 148 [2022-03-15 14:13:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:13:20,967 INFO L225 Difference]: With dead ends: 49980 [2022-03-15 14:13:20,967 INFO L226 Difference]: Without dead ends: 48125 [2022-03-15 14:13:20,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=864, Invalid=3168, Unknown=0, NotChecked=0, Total=4032 [2022-03-15 14:13:20,968 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1449 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:13:20,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 2732 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:13:21,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48125 states. [2022-03-15 14:13:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48125 to 24859. [2022-03-15 14:13:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24859 states, 24858 states have (on average 4.1193177246761605) internal successors, (102398), 24858 states have internal predecessors, (102398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24859 states to 24859 states and 102398 transitions. [2022-03-15 14:13:22,156 INFO L78 Accepts]: Start accepts. Automaton has 24859 states and 102398 transitions. Word has length 148 [2022-03-15 14:13:22,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:13:22,160 INFO L470 AbstractCegarLoop]: Abstraction has 24859 states and 102398 transitions. [2022-03-15 14:13:22,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.0) internal successors, (209), 19 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:22,160 INFO L276 IsEmpty]: Start isEmpty. Operand 24859 states and 102398 transitions. [2022-03-15 14:13:22,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-15 14:13:22,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:13:22,226 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:13:22,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-15 14:13:22,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-15 14:13:22,427 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:13:22,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:13:22,427 INFO L85 PathProgramCache]: Analyzing trace with hash -647156114, now seen corresponding path program 10 times [2022-03-15 14:13:22,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:13:22,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980579917] [2022-03-15 14:13:22,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:13:22,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:13:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:13:22,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:13:22,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980579917] [2022-03-15 14:13:22,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980579917] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:13:22,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208298003] [2022-03-15 14:13:22,552 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:13:22,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:22,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:13:22,556 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:13:22,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-15 14:13:22,685 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:13:22,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:13:22,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 14:13:22,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:13:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:13:23,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:13:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:13:23,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208298003] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:13:23,335 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:13:23,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-15 14:13:23,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892081176] [2022-03-15 14:13:23,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:13:23,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-15 14:13:23,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:13:23,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-15 14:13:23,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:13:23,336 INFO L87 Difference]: Start difference. First operand 24859 states and 102398 transitions. Second operand has 24 states, 24 states have (on average 9.75) internal successors, (234), 24 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:24,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:13:24,066 INFO L93 Difference]: Finished difference Result 41627 states and 174078 transitions. [2022-03-15 14:13:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 14:13:24,066 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.75) internal successors, (234), 24 states have internal predecessors, (234), 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 155 [2022-03-15 14:13:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:13:24,234 INFO L225 Difference]: With dead ends: 41627 [2022-03-15 14:13:24,234 INFO L226 Difference]: Without dead ends: 41627 [2022-03-15 14:13:24,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 295 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=943, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 14:13:24,235 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 1016 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:13:24,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 1295 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:13:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41627 states. [2022-03-15 14:13:25,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41627 to 35339. [2022-03-15 14:13:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35339 states, 35338 states have (on average 4.165430980813855) internal successors, (147198), 35338 states have internal predecessors, (147198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35339 states to 35339 states and 147198 transitions. [2022-03-15 14:13:25,227 INFO L78 Accepts]: Start accepts. Automaton has 35339 states and 147198 transitions. Word has length 155 [2022-03-15 14:13:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:13:25,228 INFO L470 AbstractCegarLoop]: Abstraction has 35339 states and 147198 transitions. [2022-03-15 14:13:25,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.75) internal successors, (234), 24 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 35339 states and 147198 transitions. [2022-03-15 14:13:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-15 14:13:25,308 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:13:25,308 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:13:25,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-15 14:13:25,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-15 14:13:25,509 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:13:25,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:13:25,509 INFO L85 PathProgramCache]: Analyzing trace with hash -201771473, now seen corresponding path program 11 times [2022-03-15 14:13:25,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:13:25,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796395306] [2022-03-15 14:13:25,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:13:25,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:13:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-15 14:13:25,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:13:25,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796395306] [2022-03-15 14:13:25,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796395306] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:13:25,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611377288] [2022-03-15 14:13:25,900 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:13:25,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:25,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:13:25,903 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) [2022-03-15 14:13:25,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-15 14:13:26,051 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-03-15 14:13:26,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:13:26,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 14:13:26,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:13:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-15 14:13:26,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:13:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-15 14:13:26,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611377288] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:13:26,671 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:13:26,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2022-03-15 14:13:26,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614390621] [2022-03-15 14:13:26,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:13:26,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 14:13:26,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:13:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 14:13:26,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-15 14:13:26,673 INFO L87 Difference]: Start difference. First operand 35339 states and 147198 transitions. Second operand has 21 states, 21 states have (on average 12.0) internal successors, (252), 21 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:13:28,240 INFO L93 Difference]: Finished difference Result 88790 states and 374319 transitions. [2022-03-15 14:13:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 14:13:28,240 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.0) internal successors, (252), 21 states have internal predecessors, (252), 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 160 [2022-03-15 14:13:28,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:13:28,618 INFO L225 Difference]: With dead ends: 88790 [2022-03-15 14:13:28,619 INFO L226 Difference]: Without dead ends: 88790 [2022-03-15 14:13:28,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 310 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=639, Invalid=1811, Unknown=0, NotChecked=0, Total=2450 [2022-03-15 14:13:28,619 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 1463 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:13:28,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 2108 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:13:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88790 states. [2022-03-15 14:13:30,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88790 to 49659. [2022-03-15 14:13:30,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49659 states, 49658 states have (on average 4.2040758790124455) internal successors, (208766), 49658 states have internal predecessors, (208766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49659 states to 49659 states and 208766 transitions. [2022-03-15 14:13:30,822 INFO L78 Accepts]: Start accepts. Automaton has 49659 states and 208766 transitions. Word has length 160 [2022-03-15 14:13:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:13:30,822 INFO L470 AbstractCegarLoop]: Abstraction has 49659 states and 208766 transitions. [2022-03-15 14:13:30,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.0) internal successors, (252), 21 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:30,822 INFO L276 IsEmpty]: Start isEmpty. Operand 49659 states and 208766 transitions. [2022-03-15 14:13:30,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-15 14:13:30,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:13:30,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:13:30,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-15 14:13:31,139 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 [2022-03-15 14:13:31,140 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:13:31,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:13:31,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1462933140, now seen corresponding path program 12 times [2022-03-15 14:13:31,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:13:31,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966826063] [2022-03-15 14:13:31,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:13:31,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:13:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-15 14:13:31,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:13:31,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966826063] [2022-03-15 14:13:31,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966826063] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:13:31,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855114391] [2022-03-15 14:13:31,494 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:13:31,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:31,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:13:31,496 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:13:31,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-15 14:13:31,659 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 14:13:31,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:13:31,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-15 14:13:31,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:13:31,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:13:31,746 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-03-15 14:13:31,746 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-03-15 14:13:32,158 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:13:32,158 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:13:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:13:32,733 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-03-15 14:13:32,829 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-03-15 14:13:32,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 14:13:32,964 INFO L353 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2022-03-15 14:13:32,964 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 65 [2022-03-15 14:13:33,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:13:33,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-03-15 14:13:33,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-03-15 14:13:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-15 14:13:33,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:13:50,112 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 404 [2022-03-15 14:13:50,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 482 treesize of output 478 [2022-03-15 14:13:50,126 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 517 treesize of output 515 [2022-03-15 14:13:50,149 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:13:50,149 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 554 treesize of output 512 [2022-03-15 14:13:51,144 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-03-15 14:13:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 9 refuted. 7 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-15 14:13:51,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855114391] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:13:51,192 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:13:51,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25, 26] total 62 [2022-03-15 14:13:51,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879476328] [2022-03-15 14:13:51,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:13:51,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-15 14:13:51,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:13:51,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-15 14:13:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=3418, Unknown=73, NotChecked=0, Total=3782 [2022-03-15 14:13:51,194 INFO L87 Difference]: Start difference. First operand 49659 states and 208766 transitions. Second operand has 62 states, 62 states have (on average 6.306451612903226) internal successors, (391), 62 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:14:32,620 WARN L228 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 123 DAG size of output: 110 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-15 14:15:14,661 WARN L228 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 123 DAG size of output: 94 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)