./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 105e7597bd9cfde6146cefe87563ba1bc48309677fb8b2f1d1f421bc92453e6b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:58:27,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:58:27,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:58:27,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:58:27,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:58:27,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:58:27,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:58:27,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:58:27,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:58:27,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:58:27,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:58:27,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:58:27,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:58:27,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:58:27,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:58:27,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:58:27,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:58:27,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:58:27,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:58:27,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:58:27,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:58:27,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:58:27,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:58:27,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:58:27,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:58:27,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:58:27,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:58:27,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:58:27,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:58:27,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:58:27,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:58:27,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:58:27,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:58:27,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:58:27,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:58:27,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:58:27,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:58:27,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:58:27,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:58:27,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:58:27,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:58:27,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:58:27,785 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:58:27,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:58:27,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:58:27,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:58:27,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:58:27,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:58:27,788 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:58:27,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:58:27,788 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:58:27,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:58:27,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:58:27,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:58:27,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:58:27,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:58:27,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:58:27,791 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:58:27,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:58:27,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:58:27,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:58:27,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:58:27,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:58:27,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:58:27,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:58:27,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:58:27,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:58:27,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:58:27,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:58:27,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:58:27,795 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:58:27,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:58:27,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:58:27,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:58:27,796 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 105e7597bd9cfde6146cefe87563ba1bc48309677fb8b2f1d1f421bc92453e6b [2021-11-09 08:58:28,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:58:28,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:58:28,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:58:28,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:58:28,101 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:58:28,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/array-fpi/res2.c [2021-11-09 08:58:28,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/data/8375577e5/59992fb3494f4abd99df35c49d330cda/FLAGbae47ea45 [2021-11-09 08:58:28,652 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:58:28,653 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/sv-benchmarks/c/array-fpi/res2.c [2021-11-09 08:58:28,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/data/8375577e5/59992fb3494f4abd99df35c49d330cda/FLAGbae47ea45 [2021-11-09 08:58:28,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/data/8375577e5/59992fb3494f4abd99df35c49d330cda [2021-11-09 08:58:29,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:58:29,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:58:29,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:29,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:58:29,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:58:29,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587131e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29, skipping insertion in model container [2021-11-09 08:58:29,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:58:29,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:58:29,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/sv-benchmarks/c/array-fpi/res2.c[587,600] [2021-11-09 08:58:29,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:29,247 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:58:29,262 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/sv-benchmarks/c/array-fpi/res2.c[587,600] [2021-11-09 08:58:29,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:29,290 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:58:29,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29 WrapperNode [2021-11-09 08:58:29,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:29,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:29,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:58:29,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:58:29,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:29,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:58:29,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:58:29,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:58:29,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:58:29,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:58:29,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:58:29,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:58:29,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (1/1) ... [2021-11-09 08:58:29,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:58:29,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:29,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:58:29,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:58:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:58:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:58:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:58:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:58:29,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:58:29,721 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-09 08:58:29,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:29 BoogieIcfgContainer [2021-11-09 08:58:29,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:58:29,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:58:29,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:58:29,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:58:29,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:58:29" (1/3) ... [2021-11-09 08:58:29,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53462115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:58:29, skipping insertion in model container [2021-11-09 08:58:29,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:29" (2/3) ... [2021-11-09 08:58:29,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53462115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:58:29, skipping insertion in model container [2021-11-09 08:58:29,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:29" (3/3) ... [2021-11-09 08:58:29,731 INFO L111 eAbstractionObserver]: Analyzing ICFG res2.c [2021-11-09 08:58:29,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:58:29,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:58:29,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:58:29,805 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=PETRI_NET, 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 [2021-11-09 08:58:29,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:58:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-09 08:58:29,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:29,832 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:29,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:29,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2021-11-09 08:58:29,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:29,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900699286] [2021-11-09 08:58:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:29,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:30,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:30,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900699286] [2021-11-09 08:58:30,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900699286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:30,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:30,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:58:30,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671824306] [2021-11-09 08:58:30,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:58:30,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:30,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:58:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:58:30,165 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:30,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:30,200 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2021-11-09 08:58:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:58:30,202 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-11-09 08:58:30,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:30,213 INFO L225 Difference]: With dead ends: 56 [2021-11-09 08:58:30,213 INFO L226 Difference]: Without dead ends: 26 [2021-11-09 08:58:30,219 INFO L786 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 [2021-11-09 08:58:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-09 08:58:30,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-09 08:58:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-11-09 08:58:30,265 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2021-11-09 08:58:30,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:30,266 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-11-09 08:58:30,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-09 08:58:30,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-09 08:58:30,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:30,269 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:30,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:58:30,269 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:30,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:30,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2021-11-09 08:58:30,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:30,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759815905] [2021-11-09 08:58:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:30,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:30,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:30,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:30,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759815905] [2021-11-09 08:58:30,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759815905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:30,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:30,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:58:30,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001928493] [2021-11-09 08:58:30,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:58:30,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:58:30,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:58:30,477 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:30,622 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2021-11-09 08:58:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:58:30,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-11-09 08:58:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:30,627 INFO L225 Difference]: With dead ends: 57 [2021-11-09 08:58:30,628 INFO L226 Difference]: Without dead ends: 38 [2021-11-09 08:58:30,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:58:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-09 08:58:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-11-09 08:58:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-11-09 08:58:30,649 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2021-11-09 08:58:30,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:30,650 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-11-09 08:58:30,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:30,670 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-11-09 08:58:30,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 08:58:30,672 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:30,672 INFO L513 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] [2021-11-09 08:58:30,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:58:30,674 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2021-11-09 08:58:30,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:30,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909889384] [2021-11-09 08:58:30,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:30,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:31,973 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:31,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:31,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909889384] [2021-11-09 08:58:31,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909889384] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:31,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357159032] [2021-11-09 08:58:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:31,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:31,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:31,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:32,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:58:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:32,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-09 08:58:32,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:32,218 INFO L388 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 [2021-11-09 08:58:32,244 INFO L388 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 [2021-11-09 08:58:32,340 INFO L388 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 19 treesize of output 18 [2021-11-09 08:58:32,647 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-09 08:58:32,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 36 treesize of output 27 [2021-11-09 08:58:33,014 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-09 08:58:33,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 34 treesize of output 32 [2021-11-09 08:58:33,426 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-09 08:58:33,427 INFO L388 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 5 case distinctions, treesize of input 51 treesize of output 41 [2021-11-09 08:58:33,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:33,719 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-09 08:58:33,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 30 [2021-11-09 08:58:34,003 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-09 08:58:34,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 28 [2021-11-09 08:58:34,185 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-09 08:58:34,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 40 [2021-11-09 08:58:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:34,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357159032] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:34,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:34,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 30 [2021-11-09 08:58:34,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245498434] [2021-11-09 08:58:34,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-09 08:58:34,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-09 08:58:34,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:58:34,261 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 30 states, 30 states have (on average 1.9) internal successors, (57), 30 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:35,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:35,326 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2021-11-09 08:58:35,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:58:35,327 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.9) internal successors, (57), 30 states have internal predecessors, (57), 0 states have call successors, (0), 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 31 [2021-11-09 08:58:35,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:35,328 INFO L225 Difference]: With dead ends: 57 [2021-11-09 08:58:35,328 INFO L226 Difference]: Without dead ends: 53 [2021-11-09 08:58:35,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=262, Invalid=1220, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:58:35,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-09 08:58:35,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2021-11-09 08:58:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2021-11-09 08:58:35,352 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 31 [2021-11-09 08:58:35,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:35,353 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2021-11-09 08:58:35,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.9) internal successors, (57), 30 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2021-11-09 08:58:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-09 08:58:35,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:35,355 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 08:58:35,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:35,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:35,556 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:35,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:35,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1839245574, now seen corresponding path program 2 times [2021-11-09 08:58:35,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:35,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616929494] [2021-11-09 08:58:35,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:35,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:58:35,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:35,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616929494] [2021-11-09 08:58:35,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616929494] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:35,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247416667] [2021-11-09 08:58:35,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:58:35,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:35,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:35,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:35,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 08:58:35,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:58:35,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:35,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:58:35,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 08:58:35,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247416667] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:35,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:35,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-11-09 08:58:35,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131396698] [2021-11-09 08:58:35,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:58:35,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:35,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:58:35,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:58:35,931 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:36,204 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-11-09 08:58:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:58:36,204 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 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 33 [2021-11-09 08:58:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:36,206 INFO L225 Difference]: With dead ends: 128 [2021-11-09 08:58:36,206 INFO L226 Difference]: Without dead ends: 72 [2021-11-09 08:58:36,207 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:58:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-09 08:58:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2021-11-09 08:58:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-11-09 08:58:36,216 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 33 [2021-11-09 08:58:36,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:36,216 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-11-09 08:58:36,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-11-09 08:58:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-09 08:58:36,218 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:36,218 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 08:58:36,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:36,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:36,436 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:36,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:36,439 INFO L85 PathProgramCache]: Analyzing trace with hash 447877832, now seen corresponding path program 3 times [2021-11-09 08:58:36,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:36,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996963034] [2021-11-09 08:58:36,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:36,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:36,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-09 08:58:36,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:36,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996963034] [2021-11-09 08:58:36,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996963034] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:36,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878900201] [2021-11-09 08:58:36,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:58:36,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:36,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:36,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:36,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 08:58:36,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-09 08:58:36,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:36,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:58:36,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:36,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-09 08:58:36,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878900201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:36,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:36,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-11-09 08:58:36,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254126463] [2021-11-09 08:58:36,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:58:36,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:36,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:58:36,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:58:36,823 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:37,013 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-11-09 08:58:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:58:37,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 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 35 [2021-11-09 08:58:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:37,015 INFO L225 Difference]: With dead ends: 65 [2021-11-09 08:58:37,015 INFO L226 Difference]: Without dead ends: 49 [2021-11-09 08:58:37,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:58:37,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-09 08:58:37,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2021-11-09 08:58:37,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2021-11-09 08:58:37,023 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 35 [2021-11-09 08:58:37,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:37,023 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2021-11-09 08:58:37,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-11-09 08:58:37,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-09 08:58:37,025 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:37,025 INFO L513 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] [2021-11-09 08:58:37,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:37,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:37,241 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:37,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:37,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1410382416, now seen corresponding path program 4 times [2021-11-09 08:58:37,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:37,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212664225] [2021-11-09 08:58:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:37,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:39,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:39,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212664225] [2021-11-09 08:58:39,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212664225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:39,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411028386] [2021-11-09 08:58:39,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:58:39,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:39,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:39,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:39,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 08:58:39,570 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:58:39,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:39,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-09 08:58:39,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:39,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-09 08:58:39,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-09 08:58:39,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:39,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-09 08:58:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:39,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-09 08:58:40,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:40,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:40,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:40,239 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:40,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-11-09 08:58:40,529 INFO L354 Elim1Store]: treesize reduction 76, result has 16.5 percent of original size [2021-11-09 08:58:40,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 56 treesize of output 42 [2021-11-09 08:58:40,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:40,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:40,934 INFO L354 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2021-11-09 08:58:40,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 53 [2021-11-09 08:58:41,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:41,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:41,265 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-09 08:58:41,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 61 [2021-11-09 08:58:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:41,666 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:41,667 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:41,696 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-09 08:58:41,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 78 treesize of output 70 [2021-11-09 08:58:41,980 INFO L354 Elim1Store]: treesize reduction 168, result has 14.7 percent of original size [2021-11-09 08:58:41,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 76 treesize of output 68 [2021-11-09 08:58:42,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:42,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:42,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:42,586 INFO L354 Elim1Store]: treesize reduction 96, result has 13.5 percent of original size [2021-11-09 08:58:42,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 70 treesize of output 77 [2021-11-09 08:58:42,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:42,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:42,969 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:43,001 INFO L354 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2021-11-09 08:58:43,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 69 treesize of output 83 [2021-11-09 08:58:43,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:43,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:43,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:58:43,707 INFO L354 Elim1Store]: treesize reduction 200, result has 12.7 percent of original size [2021-11-09 08:58:43,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 90 treesize of output 92 [2021-11-09 08:58:44,120 INFO L354 Elim1Store]: treesize reduction 276, result has 13.5 percent of original size [2021-11-09 08:58:44,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 89 treesize of output 91 [2021-11-09 08:58:44,513 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-09 08:58:44,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 70 [2021-11-09 08:58:44,591 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:44,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411028386] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:44,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:44,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 27] total 58 [2021-11-09 08:58:44,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400102458] [2021-11-09 08:58:44,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-09 08:58:44,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:44,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-09 08:58:44,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=2866, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 08:58:44,597 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 58 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:51,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:51,723 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2021-11-09 08:58:51,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-09 08:58:51,724 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 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 43 [2021-11-09 08:58:51,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:51,727 INFO L225 Difference]: With dead ends: 88 [2021-11-09 08:58:51,728 INFO L226 Difference]: Without dead ends: 82 [2021-11-09 08:58:51,739 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2141 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=623, Invalid=4347, Unknown=0, NotChecked=0, Total=4970 [2021-11-09 08:58:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-09 08:58:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 67. [2021-11-09 08:58:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 66 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2021-11-09 08:58:51,767 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 43 [2021-11-09 08:58:51,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:51,768 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-11-09 08:58:51,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:51,769 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2021-11-09 08:58:51,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-09 08:58:51,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:51,775 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-09 08:58:51,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:52,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:52,002 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:52,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:52,002 INFO L85 PathProgramCache]: Analyzing trace with hash -313453870, now seen corresponding path program 5 times [2021-11-09 08:58:52,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:52,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263961313] [2021-11-09 08:58:52,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:52,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-09 08:58:52,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:52,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263961313] [2021-11-09 08:58:52,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263961313] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:52,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553375384] [2021-11-09 08:58:52,136 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:58:52,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:52,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:52,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:52,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 08:58:52,610 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-09 08:58:52,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:52,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:58:52,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-09 08:58:52,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553375384] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:52,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:52,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-09 08:58:52,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670757643] [2021-11-09 08:58:52,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:58:52,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:52,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:58:52,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:58:52,865 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:53,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:53,403 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2021-11-09 08:58:53,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 08:58:53,403 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-09 08:58:53,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:58:53,406 INFO L225 Difference]: With dead ends: 143 [2021-11-09 08:58:53,406 INFO L226 Difference]: Without dead ends: 62 [2021-11-09 08:58:53,408 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:58:53,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-09 08:58:53,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2021-11-09 08:58:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2021-11-09 08:58:53,417 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 45 [2021-11-09 08:58:53,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:58:53,418 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-11-09 08:58:53,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:53,418 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2021-11-09 08:58:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 08:58:53,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:58:53,420 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:53,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:53,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:53,642 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:58:53,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:53,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1101638372, now seen corresponding path program 6 times [2021-11-09 08:58:53,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:53,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181898221] [2021-11-09 08:58:53,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:53,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:57,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:57,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181898221] [2021-11-09 08:58:57,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181898221] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:57,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118114466] [2021-11-09 08:58:57,568 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:58:57,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:57,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:57,573 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:57,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 08:58:57,977 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-11-09 08:58:57,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:58:57,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 72 conjunts are in the unsatisfiable core [2021-11-09 08:58:57,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:58,024 INFO L388 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 [2021-11-09 08:58:58,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:58,136 INFO L388 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 23 treesize of output 22 [2021-11-09 08:58:58,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:58,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:58,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-09 08:58:58,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:58:58,675 INFO L354 Elim1Store]: treesize reduction 76, result has 20.8 percent of original size [2021-11-09 08:58:58,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 53 [2021-11-09 08:58:58,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_main_~i~0] [2021-11-09 08:58:58,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-09 08:58:58,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2021-11-09 08:58:58,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034454022] [2021-11-09 08:58:58,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-09 08:58:58,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-09 08:58:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2214, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 08:58:58,966 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 45 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:01,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:01,177 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2021-11-09 08:59:01,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-09 08:59:01,179 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-11-09 08:59:01,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:01,181 INFO L225 Difference]: With dead ends: 105 [2021-11-09 08:59:01,181 INFO L226 Difference]: Without dead ends: 101 [2021-11-09 08:59:01,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=625, Invalid=4067, Unknown=0, NotChecked=0, Total=4692 [2021-11-09 08:59:01,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-09 08:59:01,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 85. [2021-11-09 08:59:01,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.119047619047619) internal successors, (94), 84 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2021-11-09 08:59:01,197 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 55 [2021-11-09 08:59:01,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:01,198 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2021-11-09 08:59:01,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:01,198 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2021-11-09 08:59:01,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-09 08:59:01,200 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:01,200 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:59:01,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:01,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-09 08:59:01,414 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:59:01,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1698014562, now seen corresponding path program 7 times [2021-11-09 08:59:01,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:01,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507274487] [2021-11-09 08:59:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:01,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-09 08:59:01,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:01,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507274487] [2021-11-09 08:59:01,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507274487] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:01,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145415653] [2021-11-09 08:59:01,559 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:59:01,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:01,560 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:01,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 08:59:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:01,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:59:01,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-09 08:59:02,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145415653] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:02,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:02,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-11-09 08:59:02,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373677639] [2021-11-09 08:59:02,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:59:02,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:02,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:59:02,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:59:02,216 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:02,582 INFO L93 Difference]: Finished difference Result 192 states and 213 transitions. [2021-11-09 08:59:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 08:59:02,583 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 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 57 [2021-11-09 08:59:02,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:02,584 INFO L225 Difference]: With dead ends: 192 [2021-11-09 08:59:02,584 INFO L226 Difference]: Without dead ends: 108 [2021-11-09 08:59:02,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:59:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-09 08:59:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 90. [2021-11-09 08:59:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.101123595505618) internal successors, (98), 89 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:02,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2021-11-09 08:59:02,614 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 57 [2021-11-09 08:59:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:02,614 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2021-11-09 08:59:02,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2021-11-09 08:59:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-09 08:59:02,622 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:02,622 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:59:02,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:02,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:02,843 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:59:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash 688684640, now seen corresponding path program 8 times [2021-11-09 08:59:02,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:02,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287485520] [2021-11-09 08:59:02,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:02,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-09 08:59:02,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:02,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287485520] [2021-11-09 08:59:02,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287485520] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:02,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993011037] [2021-11-09 08:59:02,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:59:02,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:02,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:02,967 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:02,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 08:59:03,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:59:03,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:03,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:59:03,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-09 08:59:03,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993011037] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:03,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:03,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-11-09 08:59:03,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052090153] [2021-11-09 08:59:03,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:59:03,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:59:03,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:59:03,738 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:04,053 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2021-11-09 08:59:04,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 08:59:04,058 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 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 59 [2021-11-09 08:59:04,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:04,060 INFO L225 Difference]: With dead ends: 101 [2021-11-09 08:59:04,060 INFO L226 Difference]: Without dead ends: 73 [2021-11-09 08:59:04,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:59:04,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-09 08:59:04,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-11-09 08:59:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0895522388059702) internal successors, (73), 67 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2021-11-09 08:59:04,072 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 59 [2021-11-09 08:59:04,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:04,073 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2021-11-09 08:59:04,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:04,073 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2021-11-09 08:59:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-09 08:59:04,074 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:04,074 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:59:04,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:04,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 08:59:04,277 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:59:04,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:04,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1255624168, now seen corresponding path program 9 times [2021-11-09 08:59:04,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:04,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624510123] [2021-11-09 08:59:04,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:04,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:09,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:09,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624510123] [2021-11-09 08:59:09,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624510123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:09,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011120652] [2021-11-09 08:59:09,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:59:09,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:09,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:09,958 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:09,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-09 08:59:10,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-09 08:59:10,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:10,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-09 08:59:10,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:10,624 INFO L388 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 [2021-11-09 08:59:10,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:10,722 INFO L388 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 23 treesize of output 22 [2021-11-09 08:59:10,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:10,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:10,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-09 08:59:11,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:11,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:11,115 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-09 08:59:11,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 44 [2021-11-09 08:59:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:11,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:11,419 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-09 08:59:11,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 59 [2021-11-09 08:59:12,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:12,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:12,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:12,115 INFO L354 Elim1Store]: treesize reduction 79, result has 1.3 percent of original size [2021-11-09 08:59:12,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 80 treesize of output 76 [2021-11-09 08:59:12,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:12,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:12,524 INFO L354 Elim1Store]: treesize reduction 71, result has 1.4 percent of original size [2021-11-09 08:59:12,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 72 [2021-11-09 08:59:12,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:12,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:12,859 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-09 08:59:12,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 86 treesize of output 85 [2021-11-09 08:59:13,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:13,505 INFO L354 Elim1Store]: treesize reduction 434, result has 11.2 percent of original size [2021-11-09 08:59:13,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 103 treesize of output 97 [2021-11-09 08:59:14,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:14,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:14,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:14,820 INFO L354 Elim1Store]: treesize reduction 450, result has 7.0 percent of original size [2021-11-09 08:59:14,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 95 treesize of output 98 [2021-11-09 08:59:15,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:15,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:15,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:15,426 INFO L354 Elim1Store]: treesize reduction 240, result has 10.4 percent of original size [2021-11-09 08:59:15,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 93 treesize of output 99 [2021-11-09 08:59:15,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:15,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:15,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:15,887 INFO L354 Elim1Store]: treesize reduction 392, result has 11.5 percent of original size [2021-11-09 08:59:15,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 94 treesize of output 111 [2021-11-09 08:59:16,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:16,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:16,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:16,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:16,677 INFO L354 Elim1Store]: treesize reduction 494, result has 9.4 percent of original size [2021-11-09 08:59:16,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 106 treesize of output 126 [2021-11-09 08:59:18,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:18,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:18,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:18,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:18,017 INFO L354 Elim1Store]: treesize reduction 79, result has 1.3 percent of original size [2021-11-09 08:59:18,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 80 treesize of output 76 [2021-11-09 08:59:18,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:18,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:18,482 INFO L354 Elim1Store]: treesize reduction 71, result has 1.4 percent of original size [2021-11-09 08:59:18,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 84 treesize of output 74 [2021-11-09 08:59:18,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:18,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:18,805 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-09 08:59:18,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 101 treesize of output 88 [2021-11-09 08:59:19,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:19,363 INFO L354 Elim1Store]: treesize reduction 434, result has 11.2 percent of original size [2021-11-09 08:59:19,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 93 treesize of output 95 [2021-11-09 08:59:20,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:20,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:20,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:20,785 INFO L354 Elim1Store]: treesize reduction 450, result has 7.0 percent of original size [2021-11-09 08:59:20,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 117 treesize of output 102 [2021-11-09 08:59:21,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:21,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:21,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:21,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:21,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:21,463 INFO L354 Elim1Store]: treesize reduction 258, result has 9.8 percent of original size [2021-11-09 08:59:21,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 105 treesize of output 107 [2021-11-09 08:59:22,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,118 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:22,177 INFO L354 Elim1Store]: treesize reduction 274, result has 7.1 percent of original size [2021-11-09 08:59:22,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 104 treesize of output 113 [2021-11-09 08:59:22,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:22,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:22,893 INFO L354 Elim1Store]: treesize reduction 314, result has 6.3 percent of original size [2021-11-09 08:59:22,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 106 treesize of output 126 [2021-11-09 08:59:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:26,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:26,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:59:26,335 INFO L354 Elim1Store]: treesize reduction 79, result has 1.3 percent of original size [2021-11-09 08:59:26,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 83 treesize of output 79 [2021-11-09 08:59:26,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:26,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:26,777 INFO L354 Elim1Store]: treesize reduction 71, result has 1.4 percent of original size [2021-11-09 08:59:26,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 81 treesize of output 75 [2021-11-09 08:59:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:27,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:27,130 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-09 08:59:27,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 91 treesize of output 88 [2021-11-09 08:59:27,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:59:27,761 INFO L354 Elim1Store]: treesize reduction 434, result has 11.2 percent of original size [2021-11-09 08:59:27,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 91 treesize of output 97 [2021-11-09 08:59:28,953 INFO L354 Elim1Store]: treesize reduction 250, result has 2.7 percent of original size [2021-11-09 08:59:28,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 112 treesize of output 74 [2021-11-09 08:59:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:59:29,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011120652] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:29,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:29,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 114 [2021-11-09 08:59:29,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563989088] [2021-11-09 08:59:29,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2021-11-09 08:59:29,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:29,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2021-11-09 08:59:29,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=616, Invalid=12265, Unknown=1, NotChecked=0, Total=12882 [2021-11-09 08:59:29,120 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 114 states, 114 states have (on average 1.131578947368421) internal successors, (129), 114 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:50,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:50,627 INFO L93 Difference]: Finished difference Result 212 states and 232 transitions. [2021-11-09 08:59:50,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-09 08:59:50,627 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 114 states have (on average 1.131578947368421) internal successors, (129), 114 states have internal predecessors, (129), 0 states have call successors, (0), 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 67 [2021-11-09 08:59:50,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:50,628 INFO L225 Difference]: With dead ends: 212 [2021-11-09 08:59:50,629 INFO L226 Difference]: Without dead ends: 164 [2021-11-09 08:59:50,638 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12384 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=1647, Invalid=33884, Unknown=1, NotChecked=0, Total=35532 [2021-11-09 08:59:50,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-09 08:59:50,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 115. [2021-11-09 08:59:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.0964912280701755) internal successors, (125), 114 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2021-11-09 08:59:50,659 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 67 [2021-11-09 08:59:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:50,660 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2021-11-09 08:59:50,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 1.131578947368421) internal successors, (129), 114 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2021-11-09 08:59:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-09 08:59:50,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:50,662 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:59:50,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:50,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-09 08:59:50,868 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:59:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash 789282922, now seen corresponding path program 10 times [2021-11-09 08:59:50,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:50,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62740606] [2021-11-09 08:59:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:50,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-09 08:59:51,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:51,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62740606] [2021-11-09 08:59:51,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62740606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:51,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66365303] [2021-11-09 08:59:51,011 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:59:51,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:51,012 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:51,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-09 08:59:52,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:59:52,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:52,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:59:52,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-09 08:59:52,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66365303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:52,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:52,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-11-09 08:59:52,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185289908] [2021-11-09 08:59:52,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 08:59:52,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:52,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 08:59:52,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:59:52,299 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:52,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:52,673 INFO L93 Difference]: Finished difference Result 228 states and 248 transitions. [2021-11-09 08:59:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 08:59:52,674 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 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 69 [2021-11-09 08:59:52,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:52,675 INFO L225 Difference]: With dead ends: 228 [2021-11-09 08:59:52,675 INFO L226 Difference]: Without dead ends: 126 [2021-11-09 08:59:52,676 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:59:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-09 08:59:52,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2021-11-09 08:59:52,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0841121495327102) internal successors, (116), 107 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:52,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2021-11-09 08:59:52,703 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 69 [2021-11-09 08:59:52,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:52,704 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2021-11-09 08:59:52,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:52,704 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2021-11-09 08:59:52,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-09 08:59:52,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:52,705 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:59:52,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:52,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:52,927 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:59:52,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:52,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1193722156, now seen corresponding path program 11 times [2021-11-09 08:59:52,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:52,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258497010] [2021-11-09 08:59:52,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:52,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:59:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-09 08:59:53,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:59:53,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258497010] [2021-11-09 08:59:53,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258497010] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:53,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655196729] [2021-11-09 08:59:53,107 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:59:53,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:59:53,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:59:53,113 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:59:53,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-09 08:59:55,530 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-09 08:59:55,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:59:55,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:59:55,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:59:55,816 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-09 08:59:55,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655196729] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:59:55,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:59:55,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-11-09 08:59:55,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112452236] [2021-11-09 08:59:55,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 08:59:55,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:59:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 08:59:55,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:59:55,819 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:59:56,232 INFO L93 Difference]: Finished difference Result 119 states and 127 transitions. [2021-11-09 08:59:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:59:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 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 71 [2021-11-09 08:59:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:59:56,233 INFO L225 Difference]: With dead ends: 119 [2021-11-09 08:59:56,233 INFO L226 Difference]: Without dead ends: 85 [2021-11-09 08:59:56,234 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:59:56,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-09 08:59:56,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2021-11-09 08:59:56,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.0759493670886076) internal successors, (85), 79 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:56,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2021-11-09 08:59:56,245 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 71 [2021-11-09 08:59:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:59:56,246 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2021-11-09 08:59:56,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:59:56,246 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2021-11-09 08:59:56,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 08:59:56,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:59:56,247 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:59:56,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-09 08:59:56,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-09 08:59:56,469 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:59:56,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:56,470 INFO L85 PathProgramCache]: Analyzing trace with hash 164799668, now seen corresponding path program 12 times [2021-11-09 08:59:56,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:56,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117934436] [2021-11-09 08:59:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:56,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 1 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:03,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:03,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117934436] [2021-11-09 09:00:03,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117934436] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:03,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809598414] [2021-11-09 09:00:03,862 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:00:03,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:03,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:03,863 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:03,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-09 09:00:05,319 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-11-09 09:00:05,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:00:05,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 113 conjunts are in the unsatisfiable core [2021-11-09 09:00:05,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:05,351 INFO L388 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 [2021-11-09 09:00:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:05,491 INFO L388 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 23 treesize of output 22 [2021-11-09 09:00:05,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:05,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:05,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-09 09:00:05,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:05,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:05,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:05,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:05,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-09 09:00:06,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-09 09:00:06,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:06,534 INFO L354 Elim1Store]: treesize reduction 114, result has 23.5 percent of original size [2021-11-09 09:00:06,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 68 [2021-11-09 09:00:07,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:07,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,392 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-11-09 09:00:07,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 85 [2021-11-09 09:00:07,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:07,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:07,812 INFO L354 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2021-11-09 09:00:07,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 100 treesize of output 88 [2021-11-09 09:00:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,333 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,339 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-09 09:00:08,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 94 treesize of output 85 [2021-11-09 09:00:08,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:08,797 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-09 09:00:08,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 105 treesize of output 86 [2021-11-09 09:00:09,194 INFO L354 Elim1Store]: treesize reduction 336, result has 12.3 percent of original size [2021-11-09 09:00:09,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 98 treesize of output 92 [2021-11-09 09:00:10,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:10,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:10,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:10,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:10,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:10,517 INFO L354 Elim1Store]: treesize reduction 266, result has 7.0 percent of original size [2021-11-09 09:00:10,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 102 treesize of output 103 [2021-11-09 09:00:11,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,240 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:11,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:11,281 INFO L354 Elim1Store]: treesize reduction 183, result has 8.5 percent of original size [2021-11-09 09:00:11,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 93 treesize of output 104 [2021-11-09 09:00:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:11,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:11,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:11,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:12,004 INFO L354 Elim1Store]: treesize reduction 210, result has 7.5 percent of original size [2021-11-09 09:00:12,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 97 treesize of output 117 [2021-11-09 09:00:12,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:12,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:12,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:12,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:12,638 INFO L354 Elim1Store]: treesize reduction 222, result has 7.1 percent of original size [2021-11-09 09:00:12,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 32 case distinctions, treesize of input 96 treesize of output 119 [2021-11-09 09:00:13,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:13,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:13,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:13,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:13,314 INFO L354 Elim1Store]: treesize reduction 476, result has 13.1 percent of original size [2021-11-09 09:00:13,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 107 treesize of output 133 [2021-11-09 09:00:14,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:14,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:14,784 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-11-09 09:00:14,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 85 [2021-11-09 09:00:15,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:15,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,275 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-09 09:00:15,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 83 [2021-11-09 09:00:15,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:15,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:15,819 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-09 09:00:15,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 94 treesize of output 85 [2021-11-09 09:00:16,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:16,413 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-09 09:00:16,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 88 [2021-11-09 09:00:16,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:16,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:17,010 INFO L354 Elim1Store]: treesize reduction 296, result has 13.7 percent of original size [2021-11-09 09:00:17,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 108 treesize of output 94 [2021-11-09 09:00:18,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:18,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:18,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:18,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:18,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:18,405 INFO L354 Elim1Store]: treesize reduction 266, result has 7.0 percent of original size [2021-11-09 09:00:18,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 115 treesize of output 108 [2021-11-09 09:00:19,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:19,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:19,070 INFO L354 Elim1Store]: treesize reduction 183, result has 8.5 percent of original size [2021-11-09 09:00:19,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 101 treesize of output 108 [2021-11-09 09:00:19,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:19,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:19,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:19,720 INFO L354 Elim1Store]: treesize reduction 202, result has 7.8 percent of original size [2021-11-09 09:00:19,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 98 treesize of output 114 [2021-11-09 09:00:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:20,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:20,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:20,448 INFO L354 Elim1Store]: treesize reduction 222, result has 7.1 percent of original size [2021-11-09 09:00:20,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 8 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 32 case distinctions, treesize of input 105 treesize of output 124 [2021-11-09 09:00:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:20,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:20,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:20,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:21,141 INFO L354 Elim1Store]: treesize reduction 476, result has 13.1 percent of original size [2021-11-09 09:00:21,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 116 treesize of output 138 [2021-11-09 09:00:22,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:22,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:22,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:22,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:22,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:22,837 INFO L354 Elim1Store]: treesize reduction 476, result has 7.4 percent of original size [2021-11-09 09:00:22,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 139 treesize of output 153 [2021-11-09 09:00:23,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,875 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:23,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:23,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:23,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:23,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:24,000 INFO L354 Elim1Store]: treesize reduction 472, result has 7.5 percent of original size [2021-11-09 09:00:24,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 9 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 139 treesize of output 151 [2021-11-09 09:00:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:24,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:24,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:24,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:24,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:24,848 INFO L354 Elim1Store]: treesize reduction 472, result has 7.5 percent of original size [2021-11-09 09:00:24,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 9 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 139 treesize of output 151 [2021-11-09 09:00:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:25,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:25,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:25,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:25,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:00:25,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:25,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:25,626 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:00:25,706 INFO L354 Elim1Store]: treesize reduction 468, result has 7.5 percent of original size [2021-11-09 09:00:25,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 9 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 145 treesize of output 151 [2021-11-09 09:00:26,443 INFO L354 Elim1Store]: treesize reduction 806, result has 9.4 percent of original size [2021-11-09 09:00:26,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 77 case distinctions, treesize of input 145 treesize of output 158 [2021-11-09 09:00:27,871 INFO L354 Elim1Store]: treesize reduction 500, result has 0.6 percent of original size [2021-11-09 09:00:27,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 161 treesize of output 102 [2021-11-09 09:00:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:00:28,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809598414] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:28,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:28,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 138 [2021-11-09 09:00:28,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466773625] [2021-11-09 09:00:28,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2021-11-09 09:00:28,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:28,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2021-11-09 09:00:28,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=950, Invalid=17956, Unknown=0, NotChecked=0, Total=18906 [2021-11-09 09:00:28,056 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 138 states, 138 states have (on average 1.108695652173913) internal successors, (153), 138 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:57,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:00:57,771 INFO L93 Difference]: Finished difference Result 226 states and 243 transitions. [2021-11-09 09:00:57,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-11-09 09:00:57,772 INFO L78 Accepts]: Start accepts. Automaton has has 138 states, 138 states have (on average 1.108695652173913) internal successors, (153), 138 states have internal predecessors, (153), 0 states have call successors, (0), 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 79 [2021-11-09 09:00:57,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:00:57,773 INFO L225 Difference]: With dead ends: 226 [2021-11-09 09:00:57,773 INFO L226 Difference]: Without dead ends: 170 [2021-11-09 09:00:57,779 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18829 ImplicationChecksByTransitivity, 37.3s TimeCoverageRelationStatistics Valid=2436, Invalid=48414, Unknown=0, NotChecked=0, Total=50850 [2021-11-09 09:00:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-09 09:00:57,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 135. [2021-11-09 09:00:57,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.0820895522388059) internal successors, (145), 134 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 145 transitions. [2021-11-09 09:00:57,794 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 145 transitions. Word has length 79 [2021-11-09 09:00:57,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:00:57,795 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 145 transitions. [2021-11-09 09:00:57,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 1.108695652173913) internal successors, (153), 138 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:00:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2021-11-09 09:00:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:00:57,796 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:00:57,796 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:00:57,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-09 09:00:57,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:57,997 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:00:57,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:00:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1617722314, now seen corresponding path program 13 times [2021-11-09 09:00:57,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:00:57,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826995989] [2021-11-09 09:00:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:00:57,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:00:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-09 09:00:58,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:00:58,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826995989] [2021-11-09 09:00:58,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826995989] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:58,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335732401] [2021-11-09 09:00:58,205 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:00:58,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:00:58,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:00:58,207 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:00:58,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-09 09:00:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:00:59,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 09:00:59,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:00:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-09 09:00:59,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335732401] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:00:59,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:00:59,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-11-09 09:00:59,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564451174] [2021-11-09 09:00:59,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 09:00:59,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:00:59,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 09:00:59,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:00:59,818 INFO L87 Difference]: Start difference. First operand 135 states and 145 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:00,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:00,246 INFO L93 Difference]: Finished difference Result 264 states and 284 transitions. [2021-11-09 09:01:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 09:01:00,247 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 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 81 [2021-11-09 09:01:00,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:00,248 INFO L225 Difference]: With dead ends: 264 [2021-11-09 09:01:00,248 INFO L226 Difference]: Without dead ends: 144 [2021-11-09 09:01:00,248 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:01:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-09 09:01:00,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2021-11-09 09:01:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.072) internal successors, (134), 125 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2021-11-09 09:01:00,267 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 81 [2021-11-09 09:01:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:00,267 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2021-11-09 09:01:00,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2021-11-09 09:01:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:01:00,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:00,268 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:01:00,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-09 09:01:00,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-09 09:01:00,469 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:01:00,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:00,469 INFO L85 PathProgramCache]: Analyzing trace with hash 671638008, now seen corresponding path program 14 times [2021-11-09 09:01:00,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:00,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552283374] [2021-11-09 09:01:00,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:00,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-09 09:01:00,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:00,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552283374] [2021-11-09 09:01:00,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552283374] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:00,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985650495] [2021-11-09 09:01:00,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:01:00,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:00,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:00,690 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:00,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-09 09:01:02,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:01:02,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:02,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 09:01:02,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-09 09:01:02,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985650495] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:02,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:02,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-11-09 09:01:02,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875549238] [2021-11-09 09:01:02,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 09:01:02,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:02,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 09:01:02,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:01:02,460 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:02,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:01:02,964 INFO L93 Difference]: Finished difference Result 137 states and 145 transitions. [2021-11-09 09:01:02,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 09:01:02,965 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 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 83 [2021-11-09 09:01:02,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:01:02,966 INFO L225 Difference]: With dead ends: 137 [2021-11-09 09:01:02,966 INFO L226 Difference]: Without dead ends: 97 [2021-11-09 09:01:02,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 09:01:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-09 09:01:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2021-11-09 09:01:02,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.065934065934066) internal successors, (97), 91 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2021-11-09 09:01:02,982 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 83 [2021-11-09 09:01:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:01:02,982 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2021-11-09 09:01:02,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:01:02,983 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2021-11-09 09:01:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-09 09:01:02,984 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:01:02,984 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:01:03,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-09 09:01:03,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-09 09:01:03,197 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:01:03,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:01:03,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1475913344, now seen corresponding path program 15 times [2021-11-09 09:01:03,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:01:03,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127814295] [2021-11-09 09:01:03,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:01:03,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:01:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:01:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 2 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:13,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:01:13,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127814295] [2021-11-09 09:01:13,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127814295] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:13,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236958079] [2021-11-09 09:01:13,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:01:13,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:01:13,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:01:13,745 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:01:13,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-09 09:01:16,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-09 09:01:16,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:01:16,973 WARN L261 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 131 conjunts are in the unsatisfiable core [2021-11-09 09:01:16,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:01:17,011 INFO L388 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 [2021-11-09 09:01:17,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,138 INFO L388 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 23 treesize of output 22 [2021-11-09 09:01:17,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-09 09:01:17,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-09 09:01:17,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:17,942 INFO L354 Elim1Store]: treesize reduction 84, result has 23.6 percent of original size [2021-11-09 09:01:17,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 56 [2021-11-09 09:01:18,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,326 INFO L354 Elim1Store]: treesize reduction 166, result has 18.6 percent of original size [2021-11-09 09:01:18,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 71 [2021-11-09 09:01:18,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:18,750 INFO L354 Elim1Store]: treesize reduction 170, result has 13.3 percent of original size [2021-11-09 09:01:18,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 72 treesize of output 86 [2021-11-09 09:01:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:19,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:19,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:19,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:19,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:19,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:19,816 INFO L354 Elim1Store]: treesize reduction 190, result has 0.5 percent of original size [2021-11-09 09:01:19,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 103 [2021-11-09 09:01:20,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:20,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,300 INFO L354 Elim1Store]: treesize reduction 184, result has 0.5 percent of original size [2021-11-09 09:01:20,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 101 [2021-11-09 09:01:20,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:20,818 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-09 09:01:20,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 105 treesize of output 101 [2021-11-09 09:01:21,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,153 INFO L354 Elim1Store]: treesize reduction 268, result has 0.4 percent of original size [2021-11-09 09:01:21,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 107 treesize of output 112 [2021-11-09 09:01:21,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:21,740 INFO L354 Elim1Store]: treesize reduction 381, result has 0.3 percent of original size [2021-11-09 09:01:21,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 128 treesize of output 127 [2021-11-09 09:01:22,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:22,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:22,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:22,608 INFO L354 Elim1Store]: treesize reduction 802, result has 9.5 percent of original size [2021-11-09 09:01:22,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 139 treesize of output 134 [2021-11-09 09:01:24,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:24,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:24,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:24,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:24,318 INFO L354 Elim1Store]: treesize reduction 836, result has 6.1 percent of original size [2021-11-09 09:01:24,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 52 case distinctions, treesize of input 122 treesize of output 132 [2021-11-09 09:01:25,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:25,215 INFO L354 Elim1Store]: treesize reduction 566, result has 6.9 percent of original size [2021-11-09 09:01:25,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 40 case distinctions, treesize of input 120 treesize of output 129 [2021-11-09 09:01:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:25,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:26,000 INFO L354 Elim1Store]: treesize reduction 472, result has 7.6 percent of original size [2021-11-09 09:01:26,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 37 case distinctions, treesize of input 110 treesize of output 127 [2021-11-09 09:01:26,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:26,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:26,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:26,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:26,507 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:26,665 INFO L354 Elim1Store]: treesize reduction 708, result has 9.9 percent of original size [2021-11-09 09:01:26,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 48 case distinctions, treesize of input 121 treesize of output 141 [2021-11-09 09:01:27,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:27,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:27,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:27,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:27,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:27,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:27,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:27,669 INFO L354 Elim1Store]: treesize reduction 902, result has 9.1 percent of original size [2021-11-09 09:01:27,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 58 case distinctions, treesize of input 125 treesize of output 154 [2021-11-09 09:01:28,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:28,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:28,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:28,657 INFO L354 Elim1Store]: treesize reduction 1018, result has 7.1 percent of original size [2021-11-09 09:01:28,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 137 treesize of output 169 [2021-11-09 09:01:30,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:30,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:30,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:30,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:30,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:30,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:30,322 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:30,327 INFO L354 Elim1Store]: treesize reduction 190, result has 0.5 percent of original size [2021-11-09 09:01:30,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 103 [2021-11-09 09:01:31,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:31,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,097 INFO L354 Elim1Store]: treesize reduction 199, result has 0.5 percent of original size [2021-11-09 09:01:31,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 106 [2021-11-09 09:01:31,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:31,768 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-09 09:01:31,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 107 treesize of output 101 [2021-11-09 09:01:32,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,207 INFO L354 Elim1Store]: treesize reduction 268, result has 0.4 percent of original size [2021-11-09 09:01:32,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 109 treesize of output 112 [2021-11-09 09:01:32,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:32,895 INFO L354 Elim1Store]: treesize reduction 381, result has 0.3 percent of original size [2021-11-09 09:01:32,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 112 treesize of output 124 [2021-11-09 09:01:33,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:33,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:33,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:33,848 INFO L354 Elim1Store]: treesize reduction 802, result has 9.5 percent of original size [2021-11-09 09:01:33,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 115 treesize of output 130 [2021-11-09 09:01:35,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:35,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:35,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:35,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:35,677 INFO L354 Elim1Store]: treesize reduction 836, result has 6.1 percent of original size [2021-11-09 09:01:35,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 52 case distinctions, treesize of input 122 treesize of output 132 [2021-11-09 09:01:36,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:36,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:36,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:36,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:36,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:36,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:36,664 INFO L354 Elim1Store]: treesize reduction 580, result has 7.6 percent of original size [2021-11-09 09:01:36,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 40 case distinctions, treesize of input 125 treesize of output 140 [2021-11-09 09:01:37,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:37,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:37,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:37,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:37,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:37,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:37,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:37,652 INFO L354 Elim1Store]: treesize reduction 620, result has 7.2 percent of original size [2021-11-09 09:01:37,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 47 case distinctions, treesize of input 118 treesize of output 144 [2021-11-09 09:01:38,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:38,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:38,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:38,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:38,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:38,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:38,449 INFO L354 Elim1Store]: treesize reduction 882, result has 8.4 percent of original size [2021-11-09 09:01:38,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 59 case distinctions, treesize of input 129 treesize of output 152 [2021-11-09 09:01:39,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:39,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:39,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:39,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:39,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:39,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:39,546 INFO L354 Elim1Store]: treesize reduction 902, result has 9.1 percent of original size [2021-11-09 09:01:39,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 58 case distinctions, treesize of input 141 treesize of output 164 [2021-11-09 09:01:40,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:40,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:40,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:40,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:40,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:40,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:40,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:40,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:40,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:40,606 INFO L354 Elim1Store]: treesize reduction 1018, result has 7.1 percent of original size [2021-11-09 09:01:40,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 151 treesize of output 179 [2021-11-09 09:01:42,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:42,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:42,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:42,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:42,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:42,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:42,441 INFO L354 Elim1Store]: treesize reduction 190, result has 0.5 percent of original size [2021-11-09 09:01:42,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 103 [2021-11-09 09:01:43,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:43,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,085 INFO L354 Elim1Store]: treesize reduction 199, result has 0.5 percent of original size [2021-11-09 09:01:43,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 106 [2021-11-09 09:01:43,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:01:43,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:43,792 INFO L354 Elim1Store]: treesize reduction 208, result has 0.5 percent of original size [2021-11-09 09:01:43,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 109 [2021-11-09 09:01:44,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:44,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:44,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:44,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:44,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:44,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:44,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:44,420 INFO L354 Elim1Store]: treesize reduction 228, result has 0.4 percent of original size [2021-11-09 09:01:44,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 112 [2021-11-09 09:01:45,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,143 INFO L354 Elim1Store]: treesize reduction 281, result has 0.4 percent of original size [2021-11-09 09:01:45,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 11 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 128 treesize of output 127 [2021-11-09 09:01:45,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:45,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:01:46,032 INFO L354 Elim1Store]: treesize reduction 700, result has 10.7 percent of original size [2021-11-09 09:01:46,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 139 treesize of output 134 [2021-11-09 09:01:47,768 INFO L354 Elim1Store]: treesize reduction 543, result has 1.8 percent of original size [2021-11-09 09:01:47,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 170 treesize of output 89 [2021-11-09 09:01:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 30 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:01:48,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236958079] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:01:48,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:01:48,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 162 [2021-11-09 09:01:48,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069682780] [2021-11-09 09:01:48,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2021-11-09 09:01:48,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:01:48,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2021-11-09 09:01:48,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=962, Invalid=25120, Unknown=0, NotChecked=0, Total=26082 [2021-11-09 09:01:48,047 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 162 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 162 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:52,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:52,432 INFO L93 Difference]: Finished difference Result 296 states and 317 transitions. [2021-11-09 09:02:52,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-11-09 09:02:52,433 INFO L78 Accepts]: Start accepts. Automaton has has 162 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 162 states have internal predecessors, (177), 0 states have call successors, (0), 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 91 [2021-11-09 09:02:52,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:52,435 INFO L225 Difference]: With dead ends: 296 [2021-11-09 09:02:52,435 INFO L226 Difference]: Without dead ends: 232 [2021-11-09 09:02:52,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28665 ImplicationChecksByTransitivity, 76.3s TimeCoverageRelationStatistics Valid=3094, Invalid=81296, Unknown=0, NotChecked=0, Total=84390 [2021-11-09 09:02:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-09 09:02:52,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 155. [2021-11-09 09:02:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.0714285714285714) internal successors, (165), 154 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2021-11-09 09:02:52,466 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 91 [2021-11-09 09:02:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:52,466 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2021-11-09 09:02:52,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 162 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2021-11-09 09:02:52,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-09 09:02:52,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:52,468 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:02:52,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-09 09:02:52,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-09 09:02:52,670 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:02:52,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:52,670 INFO L85 PathProgramCache]: Analyzing trace with hash 509699586, now seen corresponding path program 16 times [2021-11-09 09:02:52,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:52,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394019945] [2021-11-09 09:02:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:52,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-09 09:02:52,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:52,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394019945] [2021-11-09 09:02:52,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394019945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:52,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16449957] [2021-11-09 09:02:52,913 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 09:02:52,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:52,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:52,914 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:52,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-09 09:02:55,100 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 09:02:55,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:02:55,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 09:02:55,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:02:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-09 09:02:55,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16449957] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:55,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:02:55,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-11-09 09:02:55,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445191294] [2021-11-09 09:02:55,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-09 09:02:55,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:02:55,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-09 09:02:55,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2021-11-09 09:02:55,594 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand has 25 states, 25 states have (on average 2.8) internal successors, (70), 25 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:56,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:02:56,206 INFO L93 Difference]: Finished difference Result 300 states and 320 transitions. [2021-11-09 09:02:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 09:02:56,207 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 25 states have internal predecessors, (70), 0 states have call successors, (0), 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 93 [2021-11-09 09:02:56,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:02:56,208 INFO L225 Difference]: With dead ends: 300 [2021-11-09 09:02:56,208 INFO L226 Difference]: Without dead ends: 162 [2021-11-09 09:02:56,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2021-11-09 09:02:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-09 09:02:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 144. [2021-11-09 09:02:56,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.062937062937063) internal successors, (152), 143 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2021-11-09 09:02:56,236 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 93 [2021-11-09 09:02:56,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:02:56,237 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2021-11-09 09:02:56,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 25 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:02:56,237 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2021-11-09 09:02:56,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-09 09:02:56,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:02:56,239 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:02:56,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-09 09:02:56,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-09 09:02:56,461 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:02:56,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:02:56,462 INFO L85 PathProgramCache]: Analyzing trace with hash -168795964, now seen corresponding path program 17 times [2021-11-09 09:02:56,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:02:56,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313836705] [2021-11-09 09:02:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:02:56,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:02:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:02:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-09 09:02:56,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:02:56,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313836705] [2021-11-09 09:02:56,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313836705] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:02:56,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626121103] [2021-11-09 09:02:56,829 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 09:02:56,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:02:56,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:02:56,840 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:02:56,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-09 09:04:12,067 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-11-09 09:04:12,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:04:12,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 09:04:12,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-09 09:04:12,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626121103] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:12,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:04:12,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-11-09 09:04:12,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048050448] [2021-11-09 09:04:12,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-09 09:04:12,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:04:12,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-09 09:04:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2021-11-09 09:04:12,576 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 25 states, 25 states have (on average 3.12) internal successors, (78), 25 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:13,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:04:13,148 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2021-11-09 09:04:13,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 09:04:13,148 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.12) internal successors, (78), 25 states have internal predecessors, (78), 0 states have call successors, (0), 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 95 [2021-11-09 09:04:13,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:04:13,149 INFO L225 Difference]: With dead ends: 155 [2021-11-09 09:04:13,149 INFO L226 Difference]: Without dead ends: 109 [2021-11-09 09:04:13,150 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 09:04:13,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-09 09:04:13,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-11-09 09:04:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.058252427184466) internal successors, (109), 103 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2021-11-09 09:04:13,167 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 95 [2021-11-09 09:04:13,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:04:13,167 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2021-11-09 09:04:13,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.12) internal successors, (78), 25 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:04:13,167 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2021-11-09 09:04:13,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-09 09:04:13,168 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:04:13,168 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:04:13,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-09 09:04:13,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:13,369 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:04:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:04:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1857317964, now seen corresponding path program 18 times [2021-11-09 09:04:13,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:04:13,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710587900] [2021-11-09 09:04:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:04:13,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:04:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:04:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 4 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:04:27,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:04:27,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710587900] [2021-11-09 09:04:27,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710587900] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:04:27,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407628982] [2021-11-09 09:04:27,465 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 09:04:27,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:04:27,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:04:27,466 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:04:27,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-09 09:04:32,356 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-11-09 09:04:32,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:04:32,366 WARN L261 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 153 conjunts are in the unsatisfiable core [2021-11-09 09:04:32,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:04:32,399 INFO L388 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 [2021-11-09 09:04:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:32,581 INFO L388 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 23 treesize of output 22 [2021-11-09 09:04:32,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:32,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:32,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-09 09:04:33,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2021-11-09 09:04:33,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:33,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 67 [2021-11-09 09:04:34,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 82 [2021-11-09 09:04:34,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:34,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-09 09:04:35,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:35,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 95 [2021-11-09 09:04:36,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,716 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:36,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:36,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 99 [2021-11-09 09:04:37,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 95 [2021-11-09 09:04:37,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:37,806 INFO L354 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2021-11-09 09:04:37,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 7 case distinctions, treesize of input 100 treesize of output 108 [2021-11-09 09:04:38,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:38,526 INFO L354 Elim1Store]: treesize reduction 216, result has 0.5 percent of original size [2021-11-09 09:04:38,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 121 treesize of output 123 [2021-11-09 09:04:39,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,226 INFO L354 Elim1Store]: treesize reduction 354, result has 0.3 percent of original size [2021-11-09 09:04:39,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 22 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 120 treesize of output 134 [2021-11-09 09:04:39,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:39,963 INFO L354 Elim1Store]: treesize reduction 510, result has 0.2 percent of original size [2021-11-09 09:04:39,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 22 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 125 treesize of output 146 [2021-11-09 09:04:40,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:40,928 INFO L354 Elim1Store]: treesize reduction 574, result has 9.6 percent of original size [2021-11-09 09:04:40,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 41 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 84 case distinctions, treesize of input 122 treesize of output 146 [2021-11-09 09:04:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:42,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:42,966 INFO L354 Elim1Store]: treesize reduction 904, result has 3.3 percent of original size [2021-11-09 09:04:42,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 22 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 84 case distinctions, treesize of input 129 treesize of output 134 [2021-11-09 09:04:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:43,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:43,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:43,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:43,890 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:43,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:43,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:43,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:43,930 INFO L354 Elim1Store]: treesize reduction 196, result has 5.3 percent of original size [2021-11-09 09:04:43,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 46 case distinctions, treesize of input 115 treesize of output 121 [2021-11-09 09:04:44,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:44,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:44,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:44,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:44,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:44,589 INFO L354 Elim1Store]: treesize reduction 302, result has 17.9 percent of original size [2021-11-09 09:04:44,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 23 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 51 case distinctions, treesize of input 104 treesize of output 122 [2021-11-09 09:04:45,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:45,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:45,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:45,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:45,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:45,650 INFO L354 Elim1Store]: treesize reduction 488, result has 13.8 percent of original size [2021-11-09 09:04:45,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 23 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 61 case distinctions, treesize of input 111 treesize of output 136 [2021-11-09 09:04:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:46,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:46,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:46,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:46,746 INFO L354 Elim1Store]: treesize reduction 692, result has 11.5 percent of original size [2021-11-09 09:04:46,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 72 case distinctions, treesize of input 117 treesize of output 149 [2021-11-09 09:04:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:47,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:47,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:47,716 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:47,961 INFO L354 Elim1Store]: treesize reduction 914, result has 10.0 percent of original size [2021-11-09 09:04:47,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 23 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 84 case distinctions, treesize of input 129 treesize of output 164 [2021-11-09 09:04:48,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:48,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:49,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:49,205 INFO L354 Elim1Store]: treesize reduction 720, result has 8.4 percent of original size [2021-11-09 09:04:49,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 43 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 87 case distinctions, treesize of input 141 treesize of output 179 [2021-11-09 09:04:51,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:51,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:51,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:51,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:04:51,330 INFO L354 Elim1Store]: treesize reduction 334, result has 0.3 percent of original size [2021-11-09 09:04:51,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 116 treesize of output 121 [2021-11-09 09:04:52,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:52,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:52,142 INFO L354 Elim1Store]: treesize reduction 314, result has 0.3 percent of original size [2021-11-09 09:04:52,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 114 treesize of output 117 [2021-11-09 09:04:52,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:52,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:52,695 INFO L354 Elim1Store]: treesize reduction 424, result has 0.2 percent of original size [2021-11-09 09:04:52,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 124 treesize of output 130 [2021-11-09 09:04:53,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:53,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:53,616 INFO L354 Elim1Store]: treesize reduction 558, result has 0.2 percent of original size [2021-11-09 09:04:53,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 2 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 35 case distinctions, treesize of input 134 treesize of output 143 [2021-11-09 09:04:54,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:54,563 INFO L354 Elim1Store]: treesize reduction 710, result has 0.1 percent of original size [2021-11-09 09:04:54,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 44 case distinctions, treesize of input 144 treesize of output 156 [2021-11-09 09:04:55,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:55,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:55,561 INFO L354 Elim1Store]: treesize reduction 880, result has 0.1 percent of original size [2021-11-09 09:04:55,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 54 case distinctions, treesize of input 154 treesize of output 169 [2021-11-09 09:04:56,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:56,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:57,040 INFO L354 Elim1Store]: treesize reduction 1314, result has 8.0 percent of original size [2021-11-09 09:04:57,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 11 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 89 case distinctions, treesize of input 153 treesize of output 173 [2021-11-09 09:04:59,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:04:59,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:00,165 INFO L354 Elim1Store]: treesize reduction 1556, result has 5.0 percent of original size [2021-11-09 09:05:00,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 2 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 89 case distinctions, treesize of input 155 treesize of output 158 [2021-11-09 09:05:01,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:01,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:01,484 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:01,684 INFO L354 Elim1Store]: treesize reduction 800, result has 8.0 percent of original size [2021-11-09 09:05:01,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 2 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 51 case distinctions, treesize of input 151 treesize of output 153 [2021-11-09 09:05:02,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:02,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:02,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:02,863 INFO L354 Elim1Store]: treesize reduction 1044, result has 7.7 percent of original size [2021-11-09 09:05:02,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 62 case distinctions, treesize of input 153 treesize of output 160 [2021-11-09 09:05:04,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:04,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:04,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:04,454 INFO L354 Elim1Store]: treesize reduction 1072, result has 8.2 percent of original size [2021-11-09 09:05:04,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 61 case distinctions, treesize of input 148 treesize of output 163 [2021-11-09 09:05:05,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:05,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:05,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:05,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:05,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:05,768 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:06,098 INFO L354 Elim1Store]: treesize reduction 1198, result has 6.6 percent of original size [2021-11-09 09:05:06,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 5 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 69 case distinctions, treesize of input 149 treesize of output 177 [2021-11-09 09:05:07,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:07,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:07,893 INFO L354 Elim1Store]: treesize reduction 1363, result has 5.8 percent of original size [2021-11-09 09:05:07,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 8 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 161 treesize of output 192 [2021-11-09 09:05:09,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:09,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:09,915 INFO L354 Elim1Store]: treesize reduction 1528, result has 5.2 percent of original size [2021-11-09 09:05:09,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 12 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 87 case distinctions, treesize of input 177 treesize of output 207 [2021-11-09 09:05:13,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:13,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:13,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:13,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:13,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:05:13,650 INFO L354 Elim1Store]: treesize reduction 1770, result has 3.3 percent of original size [2021-11-09 09:05:13,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 2 disjoint index pairs (out of 120 index pairs), introduced 15 new quantified variables, introduced 115 case distinctions, treesize of input 206 treesize of output 224 [2021-11-09 09:05:14,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:14,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:14,906 INFO L354 Elim1Store]: treesize reduction 314, result has 0.3 percent of original size [2021-11-09 09:05:14,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 120 treesize of output 119 [2021-11-09 09:05:15,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:15,455 INFO L354 Elim1Store]: treesize reduction 424, result has 0.2 percent of original size [2021-11-09 09:05:15,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 116 treesize of output 128 [2021-11-09 09:05:16,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:16,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:16,502 INFO L354 Elim1Store]: treesize reduction 558, result has 0.2 percent of original size [2021-11-09 09:05:16,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 2 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 142 [2021-11-09 09:05:17,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:17,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:17,596 INFO L354 Elim1Store]: treesize reduction 710, result has 0.1 percent of original size [2021-11-09 09:05:17,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 44 case distinctions, treesize of input 137 treesize of output 155 [2021-11-09 09:05:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:18,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:18,707 INFO L354 Elim1Store]: treesize reduction 880, result has 0.1 percent of original size [2021-11-09 09:05:18,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 54 case distinctions, treesize of input 147 treesize of output 168 [2021-11-09 09:05:19,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:19,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:05:20,324 INFO L354 Elim1Store]: treesize reduction 1314, result has 8.0 percent of original size [2021-11-09 09:05:20,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 11 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 89 case distinctions, treesize of input 148 treesize of output 172 [2021-11-09 09:05:22,770 INFO L354 Elim1Store]: treesize reduction 1065, result has 1.5 percent of original size [2021-11-09 09:05:22,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 1 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 175 treesize of output 98 [2021-11-09 09:05:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 50 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:05:23,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407628982] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:05:23,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:05:23,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 186 [2021-11-09 09:05:23,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682103354] [2021-11-09 09:05:23,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 186 states [2021-11-09 09:05:23,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:05:23,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2021-11-09 09:05:23,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1661, Invalid=32749, Unknown=0, NotChecked=0, Total=34410 [2021-11-09 09:05:23,049 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand has 186 states, 186 states have (on average 1.0806451612903225) internal successors, (201), 186 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:09,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:09,686 INFO L93 Difference]: Finished difference Result 261 states and 276 transitions. [2021-11-09 09:06:09,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-09 09:06:09,687 INFO L78 Accepts]: Start accepts. Automaton has has 186 states, 186 states have (on average 1.0806451612903225) internal successors, (201), 186 states have internal predecessors, (201), 0 states have call successors, (0), 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 103 [2021-11-09 09:06:09,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:09,688 INFO L225 Difference]: With dead ends: 261 [2021-11-09 09:06:09,688 INFO L226 Difference]: Without dead ends: 189 [2021-11-09 09:06:09,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25124 ImplicationChecksByTransitivity, 73.3s TimeCoverageRelationStatistics Valid=2896, Invalid=64443, Unknown=1, NotChecked=0, Total=67340 [2021-11-09 09:06:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-09 09:06:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 173. [2021-11-09 09:06:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.058139534883721) internal successors, (182), 172 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 182 transitions. [2021-11-09 09:06:09,720 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 182 transitions. Word has length 103 [2021-11-09 09:06:09,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:09,720 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 182 transitions. [2021-11-09 09:06:09,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 186 states, 186 states have (on average 1.0806451612903225) internal successors, (201), 186 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:09,721 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 182 transitions. [2021-11-09 09:06:09,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-09 09:06:09,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:09,722 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:06:09,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-09 09:06:09,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:09,924 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:06:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:06:09,924 INFO L85 PathProgramCache]: Analyzing trace with hash 435430862, now seen corresponding path program 19 times [2021-11-09 09:06:09,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:06:09,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187430116] [2021-11-09 09:06:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:06:09,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:06:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-09 09:06:10,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:06:10,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187430116] [2021-11-09 09:06:10,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187430116] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:10,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501776104] [2021-11-09 09:06:10,181 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 09:06:10,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:10,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:06:10,189 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:06:10,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-09 09:06:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:12,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-09 09:06:12,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-09 09:06:12,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501776104] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:12,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:06:12,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-11-09 09:06:12,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445199501] [2021-11-09 09:06:12,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:06:12,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:06:12,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:06:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:06:12,959 INFO L87 Difference]: Start difference. First operand 173 states and 182 transitions. Second operand has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:13,541 INFO L93 Difference]: Finished difference Result 368 states and 390 transitions. [2021-11-09 09:06:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 09:06:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 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 105 [2021-11-09 09:06:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:13,543 INFO L225 Difference]: With dead ends: 368 [2021-11-09 09:06:13,543 INFO L226 Difference]: Without dead ends: 197 [2021-11-09 09:06:13,543 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 09:06:13,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-09 09:06:13,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 178. [2021-11-09 09:06:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.0564971751412429) internal successors, (187), 177 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:13,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 187 transitions. [2021-11-09 09:06:13,576 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 187 transitions. Word has length 105 [2021-11-09 09:06:13,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:13,577 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 187 transitions. [2021-11-09 09:06:13,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 187 transitions. [2021-11-09 09:06:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-09 09:06:13,578 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:13,578 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:06:13,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-09 09:06:13,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:13,787 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:06:13,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:06:13,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1994924786, now seen corresponding path program 20 times [2021-11-09 09:06:13,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:06:13,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252022383] [2021-11-09 09:06:13,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:06:13,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:06:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-09 09:06:14,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:06:14,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252022383] [2021-11-09 09:06:14,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252022383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:14,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587906905] [2021-11-09 09:06:14,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 09:06:14,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:14,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:06:14,029 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:06:14,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-09 09:06:16,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 09:06:16,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:06:16,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-09 09:06:16,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-09 09:06:16,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587906905] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:16,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:06:16,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-11-09 09:06:16,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085810283] [2021-11-09 09:06:16,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:06:16,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:06:16,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:06:16,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:06:16,828 INFO L87 Difference]: Start difference. First operand 178 states and 187 transitions. Second operand has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:17,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:06:17,509 INFO L93 Difference]: Finished difference Result 189 states and 198 transitions. [2021-11-09 09:06:17,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 09:06:17,512 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 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 105 [2021-11-09 09:06:17,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:06:17,513 INFO L225 Difference]: With dead ends: 189 [2021-11-09 09:06:17,513 INFO L226 Difference]: Without dead ends: 121 [2021-11-09 09:06:17,513 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=429, Invalid=1463, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 09:06:17,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-09 09:06:17,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 116. [2021-11-09 09:06:17,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.0521739130434782) internal successors, (121), 115 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) [2021-11-09 09:06:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2021-11-09 09:06:17,538 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 105 [2021-11-09 09:06:17,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:06:17,538 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2021-11-09 09:06:17,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:06:17,539 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2021-11-09 09:06:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-09 09:06:17,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:06:17,540 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:06:17,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-09 09:06:17,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:17,740 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:06:17,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:06:17,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1134091544, now seen corresponding path program 21 times [2021-11-09 09:06:17,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:06:17,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090841903] [2021-11-09 09:06:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:06:17,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:06:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:06:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 55 proven. 329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:06:33,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:06:33,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090841903] [2021-11-09 09:06:33,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090841903] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:06:33,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251696531] [2021-11-09 09:06:33,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 09:06:33,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:06:33,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:06:33,834 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:06:33,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_884ae8ad-8ae7-432f-9a12-5115cbe49de4/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-09 09:06:40,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-09 09:06:40,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 09:06:40,250 WARN L261 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 168 conjunts are in the unsatisfiable core [2021-11-09 09:06:40,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:06:40,290 INFO L388 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 [2021-11-09 09:06:40,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:40,467 INFO L388 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 23 treesize of output 22 [2021-11-09 09:06:40,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:40,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:40,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-09 09:06:41,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-09 09:06:41,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-09 09:06:41,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:41,721 INFO L354 Elim1Store]: treesize reduction 114, result has 23.5 percent of original size [2021-11-09 09:06:41,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 68 [2021-11-09 09:06:42,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,198 INFO L354 Elim1Store]: treesize reduction 211, result has 18.2 percent of original size [2021-11-09 09:06:42,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 69 treesize of output 83 [2021-11-09 09:06:42,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:42,679 INFO L354 Elim1Store]: treesize reduction 326, result has 15.3 percent of original size [2021-11-09 09:06:42,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 98 [2021-11-09 09:06:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:43,251 INFO L354 Elim1Store]: treesize reduction 288, result has 10.8 percent of original size [2021-11-09 09:06:43,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 93 treesize of output 113 [2021-11-09 09:06:44,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:44,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:44,429 INFO L354 Elim1Store]: treesize reduction 349, result has 0.3 percent of original size [2021-11-09 09:06:44,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 122 treesize of output 130 [2021-11-09 09:06:45,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:45,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,061 INFO L354 Elim1Store]: treesize reduction 341, result has 0.3 percent of original size [2021-11-09 09:06:45,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 126 treesize of output 128 [2021-11-09 09:06:45,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:45,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:45,705 INFO L354 Elim1Store]: treesize reduction 341, result has 0.3 percent of original size [2021-11-09 09:06:45,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 128 treesize of output 130 [2021-11-09 09:06:46,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,370 INFO L354 Elim1Store]: treesize reduction 333, result has 0.3 percent of original size [2021-11-09 09:06:46,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 126 treesize of output 128 [2021-11-09 09:06:46,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:46,777 INFO L354 Elim1Store]: treesize reduction 454, result has 0.2 percent of original size [2021-11-09 09:06:46,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 143 treesize of output 142 [2021-11-09 09:06:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:47,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:47,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:47,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:47,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:47,463 INFO L354 Elim1Store]: treesize reduction 600, result has 0.2 percent of original size [2021-11-09 09:06:47,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 149 treesize of output 154 [2021-11-09 09:06:48,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,200 INFO L354 Elim1Store]: treesize reduction 764, result has 0.1 percent of original size [2021-11-09 09:06:48,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 49 case distinctions, treesize of input 169 treesize of output 168 [2021-11-09 09:06:48,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:48,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:49,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:49,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:49,489 INFO L354 Elim1Store]: treesize reduction 1266, result has 8.2 percent of original size [2021-11-09 09:06:49,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 12 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 147 treesize of output 167 [2021-11-09 09:06:51,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:51,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:51,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:51,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:51,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:51,924 INFO L354 Elim1Store]: treesize reduction 1346, result has 4.4 percent of original size [2021-11-09 09:06:51,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 87 case distinctions, treesize of input 149 treesize of output 154 [2021-11-09 09:06:52,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:52,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:52,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:52,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:53,054 INFO L354 Elim1Store]: treesize reduction 640, result has 7.2 percent of original size [2021-11-09 09:06:53,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 49 case distinctions, treesize of input 131 treesize of output 149 [2021-11-09 09:06:54,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:54,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:54,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:54,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:54,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:54,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:54,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:54,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:54,228 INFO L354 Elim1Store]: treesize reduction 718, result has 6.5 percent of original size [2021-11-09 09:06:54,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 57 case distinctions, treesize of input 136 treesize of output 161 [2021-11-09 09:06:55,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:55,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:55,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:55,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:55,570 INFO L354 Elim1Store]: treesize reduction 796, result has 5.9 percent of original size [2021-11-09 09:06:55,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 149 treesize of output 173 [2021-11-09 09:06:56,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:56,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:56,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:56,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:56,911 INFO L354 Elim1Store]: treesize reduction 858, result has 4.8 percent of original size [2021-11-09 09:06:56,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 12 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 72 case distinctions, treesize of input 158 treesize of output 185 [2021-11-09 09:06:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:58,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:58,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:58,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:58,262 INFO L354 Elim1Store]: treesize reduction 940, result has 4.4 percent of original size [2021-11-09 09:06:58,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 17 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 80 case distinctions, treesize of input 160 treesize of output 198 [2021-11-09 09:06:59,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:59,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:06:59,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:59,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:06:59,624 INFO L354 Elim1Store]: treesize reduction 1022, result has 4.0 percent of original size [2021-11-09 09:06:59,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 23 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 88 case distinctions, treesize of input 172 treesize of output 213 [2021-11-09 09:07:00,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:00,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:00,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:00,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:01,130 INFO L354 Elim1Store]: treesize reduction 1104, result has 3.7 percent of original size [2021-11-09 09:07:01,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 31 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 96 case distinctions, treesize of input 184 treesize of output 228 [2021-11-09 09:07:04,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:04,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:04,822 INFO L354 Elim1Store]: treesize reduction 349, result has 0.3 percent of original size [2021-11-09 09:07:04,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 125 treesize of output 133 [2021-11-09 09:07:05,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:05,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:05,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:05,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:05,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:05,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:05,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:05,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:05,563 INFO L354 Elim1Store]: treesize reduction 361, result has 0.3 percent of original size [2021-11-09 09:07:05,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 130 treesize of output 136 [2021-11-09 09:07:06,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:06,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:06,341 INFO L354 Elim1Store]: treesize reduction 341, result has 0.3 percent of original size [2021-11-09 09:07:06,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 133 treesize of output 133 [2021-11-09 09:07:07,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,169 INFO L354 Elim1Store]: treesize reduction 333, result has 0.3 percent of original size [2021-11-09 09:07:07,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 144 treesize of output 134 [2021-11-09 09:07:07,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:07,756 INFO L354 Elim1Store]: treesize reduction 454, result has 0.2 percent of original size [2021-11-09 09:07:07,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 160 treesize of output 147 [2021-11-09 09:07:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:08,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:08,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:08,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:08,673 INFO L354 Elim1Store]: treesize reduction 600, result has 0.2 percent of original size [2021-11-09 09:07:08,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 143 treesize of output 155 [2021-11-09 09:07:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:09,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:09,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:09,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:09,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:09,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:09,681 INFO L354 Elim1Store]: treesize reduction 764, result has 0.1 percent of original size [2021-11-09 09:07:09,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 49 case distinctions, treesize of input 146 treesize of output 167 [2021-11-09 09:07:10,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:10,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:10,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:10,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:10,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:10,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:11,083 INFO L354 Elim1Store]: treesize reduction 1266, result has 8.2 percent of original size [2021-11-09 09:07:11,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 12 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 145 treesize of output 169 [2021-11-09 09:07:13,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:13,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:13,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:13,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:13,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:13,986 INFO L354 Elim1Store]: treesize reduction 1330, result has 5.5 percent of original size [2021-11-09 09:07:13,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 87 case distinctions, treesize of input 152 treesize of output 173 [2021-11-09 09:07:15,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:15,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:15,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:15,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:15,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:15,500 INFO L354 Elim1Store]: treesize reduction 1036, result has 5.8 percent of original size [2021-11-09 09:07:15,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 72 case distinctions, treesize of input 152 treesize of output 168 [2021-11-09 09:07:16,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:16,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:16,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:16,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:16,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:17,071 INFO L354 Elim1Store]: treesize reduction 930, result has 5.4 percent of original size [2021-11-09 09:07:17,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 69 case distinctions, treesize of input 152 treesize of output 168 [2021-11-09 09:07:18,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:18,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:18,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:18,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:18,648 INFO L354 Elim1Store]: treesize reduction 780, result has 6.0 percent of original size [2021-11-09 09:07:18,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 146 treesize of output 174 [2021-11-09 09:07:19,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:19,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:19,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:19,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:19,789 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.7 percent of original size [2021-11-09 09:07:19,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 80 case distinctions, treesize of input 151 treesize of output 186 [2021-11-09 09:07:21,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:21,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:21,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:21,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:21,522 INFO L354 Elim1Store]: treesize reduction 1347, result has 8.0 percent of original size [2021-11-09 09:07:21,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 7 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 163 treesize of output 201 [2021-11-09 09:07:22,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:22,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:22,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:22,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:23,423 INFO L354 Elim1Store]: treesize reduction 1612, result has 7.4 percent of original size [2021-11-09 09:07:23,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 7 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 107 case distinctions, treesize of input 175 treesize of output 216 [2021-11-09 09:07:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:24,862 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:24,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:24,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:25,443 INFO L354 Elim1Store]: treesize reduction 1724, result has 5.7 percent of original size [2021-11-09 09:07:25,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 13 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 116 case distinctions, treesize of input 187 treesize of output 231 [2021-11-09 09:07:28,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:28,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:28,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:28,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:28,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:29,203 INFO L354 Elim1Store]: treesize reduction 1895, result has 3.6 percent of original size [2021-11-09 09:07:29,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 142 case distinctions, treesize of input 216 treesize of output 248 [2021-11-09 09:07:30,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:30,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:30,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:30,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:30,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:31,289 INFO L354 Elim1Store]: treesize reduction 1879, result has 3.6 percent of original size [2021-11-09 09:07:31,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 142 case distinctions, treesize of input 222 treesize of output 248 [2021-11-09 09:07:32,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:32,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:32,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:32,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:33,273 INFO L354 Elim1Store]: treesize reduction 1903, result has 3.6 percent of original size [2021-11-09 09:07:33,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 142 case distinctions, treesize of input 225 treesize of output 251 [2021-11-09 09:07:34,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:34,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:34,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:34,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:35,515 INFO L354 Elim1Store]: treesize reduction 1863, result has 3.7 percent of original size [2021-11-09 09:07:35,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 7 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 130 case distinctions, treesize of input 235 treesize of output 249 [2021-11-09 09:07:36,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:36,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:36,533 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:36,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:37,172 INFO L354 Elim1Store]: treesize reduction 2126, result has 3.2 percent of original size [2021-11-09 09:07:37,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 146 case distinctions, treesize of input 237 treesize of output 260 [2021-11-09 09:07:38,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:38,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:38,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:38,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:39,610 INFO L354 Elim1Store]: treesize reduction 2422, result has 2.8 percent of original size [2021-11-09 09:07:39,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 7 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 163 case distinctions, treesize of input 243 treesize of output 272 [2021-11-09 09:07:41,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:41,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:41,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:41,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 09:07:42,164 INFO L354 Elim1Store]: treesize reduction 2736, result has 2.5 percent of original size [2021-11-09 09:07:42,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 7 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 181 case distinctions, treesize of input 244 treesize of output 283 [2021-11-09 09:07:43,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:43,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:43,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:43,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:43,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:43,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 09:07:45,994 INFO L354 Elim1Store]: treesize reduction 3284, result has 5.3 percent of original size [2021-11-09 09:07:45,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 12 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 230 case distinctions, treesize of input 269 treesize of output 289 [2021-11-09 09:07:50,312 INFO L354 Elim1Store]: treesize reduction 2716, result has 0.5 percent of original size [2021-11-09 09:07:50,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 21 select indices, 21 select index equivalence classes, 6 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 257 treesize of output 139 [2021-11-09 09:07:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 46 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:07:50,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251696531] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:07:50,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:07:50,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106] total 210 [2021-11-09 09:07:50,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108143194] [2021-11-09 09:07:50,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 210 states [2021-11-09 09:07:50,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:07:50,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 210 interpolants. [2021-11-09 09:07:50,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1757, Invalid=42132, Unknown=1, NotChecked=0, Total=43890 [2021-11-09 09:07:50,631 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand has 210 states, 210 states have (on average 1.0714285714285714) internal successors, (225), 210 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)