./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array1_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array1_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc --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 f9fbee177c3231db1a1e3277e649158ac81edd180968ad454e1d0751d0f1d4e9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:12:46,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:12:46,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:12:46,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:12:46,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:12:46,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:12:46,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:12:46,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:12:46,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:12:46,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:12:46,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:12:46,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:12:46,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:12:46,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:12:46,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:12:46,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:12:46,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:12:46,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:12:46,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:12:46,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:12:46,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:12:46,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:12:46,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:12:46,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:12:46,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:12:46,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:12:46,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:12:46,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:12:46,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:12:46,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:12:46,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:12:46,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:12:46,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:12:46,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:12:46,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:12:46,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:12:46,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:12:46,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:12:46,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:12:46,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:12:46,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:12:46,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:12:46,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:12:46,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:12:46,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:12:46,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:12:46,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:12:46,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:12:46,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:12:46,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:12:46,839 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:12:46,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:12:46,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:12:46,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:12:46,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:12:46,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:12:46,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:12:46,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:12:46,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:12:46,843 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:12:46,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:12:46,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:12:46,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:12:46,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:12:46,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:12:46,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:12:46,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:12:46,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:12:46,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:12:46,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:12:46,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:12:46,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:12:46,846 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:12:46,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:12:46,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:12:46,848 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_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9fbee177c3231db1a1e3277e649158ac81edd180968ad454e1d0751d0f1d4e9 [2022-11-02 20:12:47,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:12:47,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:12:47,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:12:47,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:12:47,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:12:47,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/array-patterns/array1_pattern.c [2022-11-02 20:12:47,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/data/d8c608528/bee65f227fde420c91c342658c464d53/FLAGbc9e23694 [2022-11-02 20:12:48,005 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:12:48,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/sv-benchmarks/c/array-patterns/array1_pattern.c [2022-11-02 20:12:48,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/data/d8c608528/bee65f227fde420c91c342658c464d53/FLAGbc9e23694 [2022-11-02 20:12:48,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/data/d8c608528/bee65f227fde420c91c342658c464d53 [2022-11-02 20:12:48,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:12:48,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:12:48,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:12:48,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:12:48,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:12:48,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@849f50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48, skipping insertion in model container [2022-11-02 20:12:48,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:12:48,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:12:48,656 WARN L230 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_91a970a9-137f-4404-8f19-a0038a1c18cc/sv-benchmarks/c/array-patterns/array1_pattern.c[1307,1320] [2022-11-02 20:12:48,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:12:48,705 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:12:48,727 WARN L230 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_91a970a9-137f-4404-8f19-a0038a1c18cc/sv-benchmarks/c/array-patterns/array1_pattern.c[1307,1320] [2022-11-02 20:12:48,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:12:48,773 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:12:48,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48 WrapperNode [2022-11-02 20:12:48,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:12:48,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:12:48,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:12:48,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:12:48,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,850 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2022-11-02 20:12:48,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:12:48,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:12:48,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:12:48,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:12:48,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:12:48,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:12:48,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:12:48,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:12:48,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (1/1) ... [2022-11-02 20:12:48,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:12:48,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:48,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:12:48,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:12:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:12:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:12:48,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:12:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:12:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:12:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:12:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:12:48,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:12:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:12:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:12:49,069 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:12:49,071 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:12:49,377 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:12:49,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:12:49,384 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:12:49,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:12:49 BoogieIcfgContainer [2022-11-02 20:12:49,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:12:49,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:12:49,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:12:49,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:12:49,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:12:48" (1/3) ... [2022-11-02 20:12:49,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6a4b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:12:49, skipping insertion in model container [2022-11-02 20:12:49,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:48" (2/3) ... [2022-11-02 20:12:49,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6a4b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:12:49, skipping insertion in model container [2022-11-02 20:12:49,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:12:49" (3/3) ... [2022-11-02 20:12:49,410 INFO L112 eAbstractionObserver]: Analyzing ICFG array1_pattern.c [2022-11-02 20:12:49,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:12:49,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:12:49,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:12:49,600 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a7a8b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:12:49,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:12:49,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:12:49,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:12:49,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:49,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:12:49,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash -800294020, now seen corresponding path program 1 times [2022-11-02 20:12:49,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:49,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586715446] [2022-11-02 20:12:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:49,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:12:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:50,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:50,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586715446] [2022-11-02 20:12:50,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586715446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:50,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:50,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:50,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779703285] [2022-11-02 20:12:50,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:50,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:12:50,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:50,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:12:50,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:12:50,084 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:12:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:12:50,121 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2022-11-02 20:12:50,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:12:50,127 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-02 20:12:50,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:12:50,136 INFO L225 Difference]: With dead ends: 47 [2022-11-02 20:12:50,136 INFO L226 Difference]: Without dead ends: 21 [2022-11-02 20:12:50,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:12:50,158 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:12:50,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:12:50,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-02 20:12:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-02 20:12:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:50,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-02 20:12:50,217 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2022-11-02 20:12:50,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:12:50,217 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-02 20:12:50,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:12:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-02 20:12:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:12:50,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:12:50,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:50,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:12:50,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:12:50,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash -952637313, now seen corresponding path program 1 times [2022-11-02 20:12:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:50,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377222680] [2022-11-02 20:12:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:50,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:50,311 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:12:50,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800489284] [2022-11-02 20:12:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:50,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:50,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:50,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:12:50,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:12:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:50,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:12:50,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:12:50,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:12:50,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:12:50,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:50,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377222680] [2022-11-02 20:12:50,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:12:50,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800489284] [2022-11-02 20:12:50,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800489284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:50,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:50,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:12:50,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517742898] [2022-11-02 20:12:50,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:50,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:12:50,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:50,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:12:50,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:12:50,567 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:12:50,623 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-02 20:12:50,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:12:50,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-11-02 20:12:50,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:12:50,626 INFO L225 Difference]: With dead ends: 26 [2022-11-02 20:12:50,626 INFO L226 Difference]: Without dead ends: 22 [2022-11-02 20:12:50,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:12:50,628 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:12:50,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:12:50,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-02 20:12:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-02 20:12:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:50,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-02 20:12:50,636 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 22 [2022-11-02 20:12:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:12:50,638 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-02 20:12:50,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-02 20:12:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-02 20:12:50,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:12:50,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:50,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:12:50,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:50,855 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:12:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash -603190335, now seen corresponding path program 1 times [2022-11-02 20:12:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:50,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171604182] [2022-11-02 20:12:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:50,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:50,910 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:12:50,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767459132] [2022-11-02 20:12:50,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:50,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:50,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:50,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:12:50,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:12:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:51,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:12:51,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:12:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:51,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:12:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:51,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171604182] [2022-11-02 20:12:51,130 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:12:51,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767459132] [2022-11-02 20:12:51,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767459132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:51,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:51,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:12:51,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922002152] [2022-11-02 20:12:51,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:51,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:12:51,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:51,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:12:51,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:12:51,134 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:51,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:12:51,249 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-02 20:12:51,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:12:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-02 20:12:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:12:51,255 INFO L225 Difference]: With dead ends: 41 [2022-11-02 20:12:51,255 INFO L226 Difference]: Without dead ends: 25 [2022-11-02 20:12:51,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:12:51,261 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:12:51,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 68 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:12:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-02 20:12:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-11-02 20:12:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-02 20:12:51,268 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 24 [2022-11-02 20:12:51,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:12:51,268 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-02 20:12:51,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:12:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-02 20:12:51,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-02 20:12:51,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:12:51,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:51,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:12:51,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:51,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:12:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:51,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1366149955, now seen corresponding path program 1 times [2022-11-02 20:12:51,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:51,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871068639] [2022-11-02 20:12:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:51,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:51,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:12:51,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467290163] [2022-11-02 20:12:51,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:51,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:12:51,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:51,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:12:51,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:12:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:51,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-02 20:12:51,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:12:51,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:12:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:12:52,166 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 87 [2022-11-02 20:12:52,206 INFO L390 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 0 case distinctions, treesize of input 86 treesize of output 84 [2022-11-02 20:12:52,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 131 [2022-11-02 20:12:52,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:12:52,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 85 treesize of output 5 [2022-11-02 20:12:52,728 INFO L356 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2022-11-02 20:12:52,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 20 [2022-11-02 20:12:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:52,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:12:53,037 INFO L356 Elim1Store]: treesize reduction 20, result has 64.3 percent of original size [2022-11-02 20:12:53,038 INFO L390 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 161 treesize of output 177 [2022-11-02 20:12:53,072 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:12:53,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 126 treesize of output 193 [2022-11-02 20:12:53,120 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:12:53,120 INFO L390 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 59 treesize of output 61 [2022-11-02 20:12:53,622 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:12:53,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 196 [2022-11-02 20:12:53,640 INFO L390 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 94 treesize of output 90 [2022-11-02 20:12:53,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:12:53,884 INFO L390 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 35 treesize of output 33 [2022-11-02 20:12:53,908 INFO L390 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 20 treesize of output 18 [2022-11-02 20:12:53,937 INFO L390 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 97 treesize of output 95 [2022-11-02 20:12:54,017 INFO L390 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 35 treesize of output 33 [2022-11-02 20:12:54,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:12:54,062 INFO L390 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 35 treesize of output 33 [2022-11-02 20:12:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:12:54,083 INFO L390 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 85 treesize of output 81 [2022-11-02 20:12:54,438 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:12:54,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1724 treesize of output 1871 [2022-11-02 20:13:03,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:03,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871068639] [2022-11-02 20:13:03,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:13:03,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467290163] [2022-11-02 20:13:03,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467290163] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:13:03,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:13:03,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2022-11-02 20:13:03,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659724559] [2022-11-02 20:13:03,589 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-02 20:13:03,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:13:03,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:03,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:13:03,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:13:03,591 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 12 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:13:04,409 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2022-11-02 20:13:04,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:13:04,409 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 12 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-11-02 20:13:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:13:04,412 INFO L225 Difference]: With dead ends: 49 [2022-11-02 20:13:04,412 INFO L226 Difference]: Without dead ends: 45 [2022-11-02 20:13:04,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:13:04,414 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 46 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:13:04,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 53 Unchecked, 0.2s Time] [2022-11-02 20:13:04,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-02 20:13:04,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2022-11-02 20:13:04,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:13:04,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2022-11-02 20:13:04,443 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 26 [2022-11-02 20:13:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:13:04,444 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-11-02 20:13:04,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 12 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:04,445 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-11-02 20:13:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-02 20:13:04,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:13:04,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:04,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:13:04,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:04,676 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:13:04,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:04,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1336652411, now seen corresponding path program 2 times [2022-11-02 20:13:04,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:04,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408989107] [2022-11-02 20:13:04,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:04,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:04,725 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:13:04,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813915905] [2022-11-02 20:13:04,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:13:04,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:04,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:13:04,735 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:13:04,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:13:04,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:13:04,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:13:04,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:13:04,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:13:04,926 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:04,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:13:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:13:05,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:05,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408989107] [2022-11-02 20:13:05,009 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:13:05,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813915905] [2022-11-02 20:13:05,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813915905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:13:05,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:13:05,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-02 20:13:05,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784264547] [2022-11-02 20:13:05,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:13:05,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:13:05,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:05,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:13:05,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:13:05,012 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:13:05,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:13:05,211 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2022-11-02 20:13:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:13:05,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-02 20:13:05,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:13:05,215 INFO L225 Difference]: With dead ends: 51 [2022-11-02 20:13:05,215 INFO L226 Difference]: Without dead ends: 33 [2022-11-02 20:13:05,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:13:05,217 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:13:05,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 90 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:13:05,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-02 20:13:05,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2022-11-02 20:13:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-02 20:13:05,227 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 28 [2022-11-02 20:13:05,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:13:05,227 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-02 20:13:05,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:13:05,228 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-02 20:13:05,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-02 20:13:05,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:13:05,229 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:05,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:13:05,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:05,452 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:13:05,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:05,452 INFO L85 PathProgramCache]: Analyzing trace with hash -178408891, now seen corresponding path program 3 times [2022-11-02 20:13:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:05,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502770981] [2022-11-02 20:13:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:05,491 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:13:05,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250617045] [2022-11-02 20:13:05,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:13:05,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:05,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:13:05,493 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:13:05,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:13:05,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:13:05,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:13:05,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-02 20:13:05,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:13:05,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:13:05,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:05,883 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 87 [2022-11-02 20:13:05,891 INFO L390 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 0 case distinctions, treesize of input 86 treesize of output 84 [2022-11-02 20:13:05,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 131 [2022-11-02 20:13:05,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:13:06,180 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:06,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 45 [2022-11-02 20:13:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-02 20:13:06,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:13:06,750 INFO L356 Elim1Store]: treesize reduction 20, result has 64.3 percent of original size [2022-11-02 20:13:06,751 INFO L390 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 161 treesize of output 177 [2022-11-02 20:13:06,781 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:06,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 126 treesize of output 193 [2022-11-02 20:13:06,817 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:06,818 INFO L390 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 59 treesize of output 61 [2022-11-02 20:13:07,261 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:07,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 196 [2022-11-02 20:13:07,278 INFO L390 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 94 treesize of output 90 [2022-11-02 20:13:07,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:07,599 INFO L390 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 35 treesize of output 33 [2022-11-02 20:13:07,615 INFO L390 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 20 treesize of output 18 [2022-11-02 20:13:07,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:13:07,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:13:07,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:07,681 INFO L390 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 35 treesize of output 33 [2022-11-02 20:13:07,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:07,704 INFO L390 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 85 treesize of output 81 [2022-11-02 20:13:07,736 INFO L390 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 97 treesize of output 95 [2022-11-02 20:13:08,592 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:08,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1770 treesize of output 1911 [2022-11-02 20:13:20,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:20,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502770981] [2022-11-02 20:13:20,567 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:13:20,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250617045] [2022-11-02 20:13:20,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250617045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:13:20,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:13:20,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-11-02 20:13:20,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582671247] [2022-11-02 20:13:20,568 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-02 20:13:20,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:13:20,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:20,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:13:20,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:13:20,570 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:21,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:13:21,021 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-02 20:13:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:13:21,022 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-11-02 20:13:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:13:21,023 INFO L225 Difference]: With dead ends: 33 [2022-11-02 20:13:21,023 INFO L226 Difference]: Without dead ends: 29 [2022-11-02 20:13:21,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:13:21,025 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:13:21,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 90 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 40 Unchecked, 0.2s Time] [2022-11-02 20:13:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-02 20:13:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-02 20:13:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:21,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-02 20:13:21,039 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 28 [2022-11-02 20:13:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:13:21,041 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-02 20:13:21,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:21,042 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-02 20:13:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-02 20:13:21,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:13:21,050 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:21,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:13:21,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:21,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:13:21,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:21,277 INFO L85 PathProgramCache]: Analyzing trace with hash 400980999, now seen corresponding path program 4 times [2022-11-02 20:13:21,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:21,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684453482] [2022-11-02 20:13:21,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:21,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:21,333 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:13:21,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898841055] [2022-11-02 20:13:21,333 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:13:21,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:21,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:13:21,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:13:21,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:13:21,498 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:13:21,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:13:21,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-02 20:13:21,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:13:21,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:13:21,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:21,612 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-11-02 20:13:21,619 INFO L390 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 0 case distinctions, treesize of input 28 treesize of output 28 [2022-11-02 20:13:21,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:13:21,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:13:21,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:21,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:21,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-11-02 20:13:22,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:22,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:22,655 INFO L356 Elim1Store]: treesize reduction 36, result has 39.0 percent of original size [2022-11-02 20:13:22,657 INFO L390 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 5 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 135 [2022-11-02 20:13:22,679 INFO L390 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 0 case distinctions, treesize of input 123 treesize of output 113 [2022-11-02 20:13:22,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:22,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:22,720 INFO L356 Elim1Store]: treesize reduction 82, result has 1.2 percent of original size [2022-11-02 20:13:22,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 149 [2022-11-02 20:13:22,762 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-02 20:13:24,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 180 [2022-11-02 20:13:24,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:24,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:13:24,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:13:24,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:24,274 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:24,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 152 [2022-11-02 20:13:24,315 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:24,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 153 [2022-11-02 20:13:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:24,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:13:44,682 WARN L234 SmtUtils]: Spent 6.40s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:13:44,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:44,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684453482] [2022-11-02 20:13:44,685 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:13:44,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898841055] [2022-11-02 20:13:44,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898841055] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:13:44,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:13:44,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2022-11-02 20:13:44,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756328503] [2022-11-02 20:13:44,686 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-02 20:13:44,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:13:44,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:44,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:13:44,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=498, Unknown=5, NotChecked=0, Total=600 [2022-11-02 20:13:44,687 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 17 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:45,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:13:45,147 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2022-11-02 20:13:45,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:13:45,148 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 17 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-11-02 20:13:45,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:13:45,149 INFO L225 Difference]: With dead ends: 60 [2022-11-02 20:13:45,149 INFO L226 Difference]: Without dead ends: 56 [2022-11-02 20:13:45,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=125, Invalid=626, Unknown=5, NotChecked=0, Total=756 [2022-11-02 20:13:45,151 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 121 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:13:45,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 141 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 85 Invalid, 0 Unknown, 121 Unchecked, 0.2s Time] [2022-11-02 20:13:45,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-02 20:13:45,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2022-11-02 20:13:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-02 20:13:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-11-02 20:13:45,171 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 30 [2022-11-02 20:13:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:13:45,172 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-11-02 20:13:45,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 17 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:13:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-11-02 20:13:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:13:45,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:13:45,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:45,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-02 20:13:45,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 20:13:45,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:13:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1151083191, now seen corresponding path program 5 times [2022-11-02 20:13:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:45,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445808385] [2022-11-02 20:13:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:45,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:13:45,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006658958] [2022-11-02 20:13:45,410 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:13:45,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:45,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:13:45,412 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:13:45,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:13:45,527 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-11-02 20:13:45,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:13:45,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:13:45,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:13:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:45,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:13:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:13:45,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:45,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445808385] [2022-11-02 20:13:45,763 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:13:45,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006658958] [2022-11-02 20:13:45,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006658958] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:13:45,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:13:45,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-02 20:13:45,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730194667] [2022-11-02 20:13:45,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:13:45,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:13:45,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:45,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:13:45,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:13:45,765 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:13:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:13:46,016 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2022-11-02 20:13:46,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:13:46,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-11-02 20:13:46,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:13:46,025 INFO L225 Difference]: With dead ends: 81 [2022-11-02 20:13:46,026 INFO L226 Difference]: Without dead ends: 69 [2022-11-02 20:13:46,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:13:46,027 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 60 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:13:46,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 106 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:13:46,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-02 20:13:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2022-11-02 20:13:46,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 43 states have internal predecessors, (48), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 20:13:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-11-02 20:13:46,046 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 32 [2022-11-02 20:13:46,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:13:46,047 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-11-02 20:13:46,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:13:46,047 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-11-02 20:13:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:13:46,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:13:46,048 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:46,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:13:46,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-02 20:13:46,262 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:13:46,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:46,262 INFO L85 PathProgramCache]: Analyzing trace with hash -475590135, now seen corresponding path program 6 times [2022-11-02 20:13:46,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:46,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698017740] [2022-11-02 20:13:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:46,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:46,284 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:13:46,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461819682] [2022-11-02 20:13:46,285 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 20:13:46,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:46,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:13:46,286 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:13:46,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:13:46,457 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-02 20:13:46,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:13:46,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:13:46,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:13:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:46,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:13:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:13:46,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:46,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698017740] [2022-11-02 20:13:46,685 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:13:46,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461819682] [2022-11-02 20:13:46,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461819682] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:13:46,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:13:46,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-02 20:13:46,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53188579] [2022-11-02 20:13:46,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:13:46,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:13:46,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:46,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:13:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:13:46,688 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:13:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:13:47,024 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2022-11-02 20:13:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:13:47,025 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-11-02 20:13:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:13:47,026 INFO L225 Difference]: With dead ends: 66 [2022-11-02 20:13:47,026 INFO L226 Difference]: Without dead ends: 62 [2022-11-02 20:13:47,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:13:47,027 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 53 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:13:47,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 126 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:13:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-02 20:13:47,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2022-11-02 20:13:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 20:13:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-11-02 20:13:47,044 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 32 [2022-11-02 20:13:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:13:47,045 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-11-02 20:13:47,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:13:47,045 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-11-02 20:13:47,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-02 20:13:47,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:13:47,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:13:47,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:13:47,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:47,263 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:13:47,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1722352949, now seen corresponding path program 7 times [2022-11-02 20:13:47,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:47,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406410432] [2022-11-02 20:13:47,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:47,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:47,287 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:13:47,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133220586] [2022-11-02 20:13:47,288 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-02 20:13:47,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:13:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:13:47,290 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:13:47,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:13:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:47,605 WARN L261 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-02 20:13:47,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:13:47,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:13:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:47,712 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-11-02 20:13:47,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:13:47,730 INFO L390 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 27 treesize of output 26 [2022-11-02 20:13:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:47,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:47,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-11-02 20:13:48,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:48,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:48,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:48,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:48,075 INFO L390 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 78 treesize of output 73 [2022-11-02 20:13:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:49,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:49,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:49,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:49,191 INFO L356 Elim1Store]: treesize reduction 52, result has 42.2 percent of original size [2022-11-02 20:13:49,191 INFO L390 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 7 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 165 [2022-11-02 20:13:49,203 INFO L390 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 0 case distinctions, treesize of input 147 treesize of output 133 [2022-11-02 20:13:49,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:49,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:49,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:13:49,248 INFO L356 Elim1Store]: treesize reduction 125, result has 0.8 percent of original size [2022-11-02 20:13:49,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 159 [2022-11-02 20:13:49,306 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-02 20:13:52,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 402 treesize of output 356 [2022-11-02 20:13:53,030 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:53,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 396 treesize of output 540 [2022-11-02 20:13:53,097 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:13:53,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 431 treesize of output 425 [2022-11-02 20:14:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:14:03,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:14:19,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:14:19,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406410432] [2022-11-02 20:14:19,285 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:14:19,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133220586] [2022-11-02 20:14:19,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133220586] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:14:19,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:14:19,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2022-11-02 20:14:19,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293971079] [2022-11-02 20:14:19,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-02 20:14:19,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 20:14:19,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:14:19,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 20:14:19,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=754, Unknown=4, NotChecked=0, Total=870 [2022-11-02 20:14:19,289 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:14:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:14:20,989 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2022-11-02 20:14:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-02 20:14:20,990 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-11-02 20:14:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:14:20,991 INFO L225 Difference]: With dead ends: 92 [2022-11-02 20:14:20,992 INFO L226 Difference]: Without dead ends: 88 [2022-11-02 20:14:20,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=152, Invalid=966, Unknown=4, NotChecked=0, Total=1122 [2022-11-02 20:14:20,993 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 37 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 161 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:14:20,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 177 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 115 Invalid, 0 Unknown, 161 Unchecked, 0.3s Time] [2022-11-02 20:14:20,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-02 20:14:21,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 70. [2022-11-02 20:14:21,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 59 states have (on average 1.11864406779661) internal successors, (66), 59 states have internal predecessors, (66), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-02 20:14:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2022-11-02 20:14:21,025 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 34 [2022-11-02 20:14:21,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:14:21,026 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2022-11-02 20:14:21,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:14:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2022-11-02 20:14:21,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:14:21,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:14:21,028 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:14:21,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:14:21,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:14:21,232 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:14:21,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:14:21,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1565541619, now seen corresponding path program 8 times [2022-11-02 20:14:21,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:14:21,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871410241] [2022-11-02 20:14:21,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:14:21,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:14:21,255 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:14:21,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804514634] [2022-11-02 20:14:21,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:14:21,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:14:21,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:14:21,258 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:14:21,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 20:14:21,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:14:21,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:14:21,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:14:21,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:14:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:14:21,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:14:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:14:21,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:14:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871410241] [2022-11-02 20:14:21,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:14:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804514634] [2022-11-02 20:14:21,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804514634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:14:21,699 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:14:21,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-02 20:14:21,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337035547] [2022-11-02 20:14:21,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:14:21,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 20:14:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:14:21,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 20:14:21,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:14:21,701 INFO L87 Difference]: Start difference. First operand 70 states and 76 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:14:22,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:14:22,126 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2022-11-02 20:14:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:14:22,127 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-02 20:14:22,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:14:22,128 INFO L225 Difference]: With dead ends: 113 [2022-11-02 20:14:22,128 INFO L226 Difference]: Without dead ends: 99 [2022-11-02 20:14:22,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:14:22,130 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 94 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:14:22,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 152 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:14:22,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-02 20:14:22,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2022-11-02 20:14:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 65 states have internal predecessors, (72), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-02 20:14:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2022-11-02 20:14:22,160 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 36 [2022-11-02 20:14:22,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:14:22,161 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2022-11-02 20:14:22,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:14:22,161 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2022-11-02 20:14:22,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:14:22,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:14:22,163 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:14:22,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:14:22,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:14:22,368 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:14:22,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:14:22,369 INFO L85 PathProgramCache]: Analyzing trace with hash -956776499, now seen corresponding path program 9 times [2022-11-02 20:14:22,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:14:22,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272326408] [2022-11-02 20:14:22,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:14:22,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:14:22,393 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:14:22,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678188556] [2022-11-02 20:14:22,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:14:22,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:14:22,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:14:22,395 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:14:22,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:14:22,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-02 20:14:22,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:14:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:14:22,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:14:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:14:22,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:14:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:14:22,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:14:22,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272326408] [2022-11-02 20:14:22,964 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:14:22,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678188556] [2022-11-02 20:14:22,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678188556] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:14:22,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:14:22,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-02 20:14:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215466763] [2022-11-02 20:14:22,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:14:22,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 20:14:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:14:22,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 20:14:22,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:14:22,967 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:14:23,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:14:23,403 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2022-11-02 20:14:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:14:23,404 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-02 20:14:23,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:14:23,405 INFO L225 Difference]: With dead ends: 98 [2022-11-02 20:14:23,405 INFO L226 Difference]: Without dead ends: 94 [2022-11-02 20:14:23,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:14:23,407 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 45 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:14:23,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 167 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:14:23,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-02 20:14:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2022-11-02 20:14:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.1044776119402986) internal successors, (74), 67 states have internal predecessors, (74), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-02 20:14:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2022-11-02 20:14:23,440 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 36 [2022-11-02 20:14:23,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:14:23,440 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2022-11-02 20:14:23,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:14:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2022-11-02 20:14:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-02 20:14:23,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:14:23,442 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:14:23,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:14:23,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:14:23,657 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:14:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:14:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2067066744, now seen corresponding path program 1 times [2022-11-02 20:14:23,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:14:23,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975401565] [2022-11-02 20:14:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:14:23,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:14:23,692 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:14:23,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028461185] [2022-11-02 20:14:23,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:14:23,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:14:23,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:14:23,701 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:14:23,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:14:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:14:23,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-02 20:14:23,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:14:23,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:14:24,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:24,019 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-11-02 20:14:24,031 INFO L390 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 0 case distinctions, treesize of input 28 treesize of output 28 [2022-11-02 20:14:24,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:14:24,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:14:24,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:24,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:24,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-11-02 20:14:25,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:25,099 INFO L356 Elim1Store]: treesize reduction 42, result has 35.4 percent of original size [2022-11-02 20:14:25,100 INFO L390 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 5 new quantified variables, introduced 2 case distinctions, treesize of input 151 treesize of output 138 [2022-11-02 20:14:25,111 INFO L390 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 0 case distinctions, treesize of input 126 treesize of output 116 [2022-11-02 20:14:25,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:25,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:25,145 INFO L356 Elim1Store]: treesize reduction 82, result has 1.2 percent of original size [2022-11-02 20:14:25,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 149 [2022-11-02 20:14:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:25,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:25,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:14:25,454 INFO L356 Elim1Store]: treesize reduction 204, result has 38.0 percent of original size [2022-11-02 20:14:25,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 242 treesize of output 453 [2022-11-02 20:14:26,136 INFO L356 Elim1Store]: treesize reduction 102, result has 31.5 percent of original size [2022-11-02 20:14:26,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 243 treesize of output 128 [2022-11-02 20:14:31,115 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 344 [2022-11-02 20:14:31,126 INFO L390 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 0 case distinctions, treesize of input 354 treesize of output 332 [2022-11-02 20:14:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:31,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:31,213 INFO L356 Elim1Store]: treesize reduction 298, result has 0.3 percent of original size [2022-11-02 20:14:31,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 243 treesize of output 304 [2022-11-02 20:14:31,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:14:31,390 INFO L356 Elim1Store]: treesize reduction 36, result has 39.0 percent of original size [2022-11-02 20:14:31,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 193 treesize of output 204 [2022-11-02 20:14:31,671 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-02 20:14:41,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 260 [2022-11-02 20:14:42,938 INFO L356 Elim1Store]: treesize reduction 143, result has 63.8 percent of original size [2022-11-02 20:14:42,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 20 case distinctions, treesize of input 313 treesize of output 509 [2022-11-02 20:14:43,054 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:14:43,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 356 treesize of output 346 [2022-11-02 20:14:52,500 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:14:52,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:15:05,271 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse13 (* |c_ULTIMATE.start_main_~sum~0#1| 4294967295)) (.cse2 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse4 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse0 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse0 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (<= (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse1 (store (select .cse5 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse0 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse3 (select (store .cse5 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse1) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse1 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse3 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse3 .cse4) (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) 0)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse7 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse7 2147483647)) (<= (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse8 (store (select .cse10 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse7 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse9 (select (store .cse10 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse8) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse8 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse9 .cse4) |c_ULTIMATE.start_main_~sum~0#1| (select .cse9 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse8 .cse2))))) 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse11 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse11 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse17 (store (select .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse11 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse18 (select (store .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse17) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse12 (* (select .cse17 .cse2) 4294967295)) (.cse14 (* 4294967295 (select .cse18 .cse4))) (.cse15 (* (select .cse18 |c_ULTIMATE.start_main_~#array1~0#1.offset|) 4294967295)) (.cse16 (* 4294967295 (select .cse17 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))) (<= (+ .cse12 .cse13 4294967296 .cse14 .cse15 .cse16) (* (div (+ .cse12 .cse13 8589934590 .cse14 .cse15 .cse16) 4294967296) 4294967296))))))))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse20 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse20 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse26 (store (select .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse20 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse25 (select (store .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse26) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse21 (* 4294967295 (select .cse25 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (.cse22 (* 4294967295 (select .cse26 .cse2))) (.cse23 (* (select .cse26 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 4294967295)) (.cse24 (* (select .cse25 .cse4) 4294967295))) (<= (+ .cse13 .cse21 .cse22 4294967296 .cse23 .cse24) (* 4294967296 (div (+ .cse13 .cse21 .cse22 8589934590 .cse23 .cse24) 4294967296)))))))))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse31 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= 0 (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse28 (store (select .cse30 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse31 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse29 (select (store .cse30 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse28) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse28 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse29 .cse4) |c_ULTIMATE.start_main_~sum~0#1| (select .cse29 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse28 .cse2) 1))))) (not (<= .cse31 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse32 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse32 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= 0 (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse33 (store (select .cse35 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse32 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse34 (select (store .cse35 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse33) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse33 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse34 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse34 .cse4) (select .cse33 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1))))) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))))) is different from true [2022-11-02 20:15:14,509 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse76 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index~0#1|)) 4294967296)) (.cse37 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|) (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* |c_ULTIMATE.start_main_~index~0#1| 4)) (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))) (let ((.cse1 (* |c_ULTIMATE.start_main_~sum~0#1| 4294967295)) (.cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse8 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse38 (select .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse39 (* 4 .cse76)) (.cse40 (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1|)) (.cse41 (<= .cse76 2147483647))) (and (or (let ((.cse11 (store .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse38 (+ (- 17179869184) .cse39 |c_ULTIMATE.start_main_~#array2~0#1.offset|) .cse40)))) (let ((.cse12 (select .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse10 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (let ((.cse9 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse7 (store (select .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse10 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse5 (select (store .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse7) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse0 (* 4294967295 (select .cse7 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (.cse2 (* 4294967295 (select .cse5 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (.cse3 (* (select .cse7 .cse8) 4294967295)) (.cse4 (* (select .cse5 .cse6) 4294967295))) (<= (+ .cse0 .cse1 .cse2 .cse3 4294967296 .cse4) (* (div (+ .cse0 .cse1 .cse2 .cse3 8589934590 .cse4) 4294967296) 4294967296)))))) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse10 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse16 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= (let ((.cse15 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse14 (store (select .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse16 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse13 (select (store .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse14) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse13 .cse6) (select .cse14 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse13 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse14 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) 0) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse16 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse20 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= 0 (let ((.cse19 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse18 (store (select .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse20 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse17 (select (store .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse18) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse17 .cse6) (select .cse18 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse17 |c_ULTIMATE.start_main_~#array1~0#1.offset|) 1 (select .cse18 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))) (not (<= .cse20 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse21 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse21 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (let ((.cse28 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse27 (store (select .cse28 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse21 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse26 (select (store .cse28 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse27) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse22 (* (select .cse26 .cse6) 4294967295)) (.cse23 (* 4294967295 (select .cse27 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (.cse24 (* (select .cse27 .cse8) 4294967295)) (.cse25 (* 4294967295 (select .cse26 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) (<= (+ .cse1 .cse22 .cse23 .cse24 .cse25 4294967296) (* (div (+ .cse1 .cse22 .cse23 8589934590 .cse24 .cse25) 4294967296) 4294967296)))))) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse29 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse29 2147483647) (<= 0 (let ((.cse32 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse30 (store (select .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse29 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse31 (select (store .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse30) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse30 .cse8) (select .cse31 .cse6) |c_ULTIMATE.start_main_~sum~0#1| (select .cse31 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse30 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1))))) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse33 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse33 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= (let ((.cse36 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse34 (store (select .cse36 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse33 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse35 (select (store .cse36 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse34) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse34 .cse8) (select .cse35 .cse6) |c_ULTIMATE.start_main_~sum~0#1| (select .cse35 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse34 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|))))))) .cse41) (or (let ((.cse46 (store .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse38 (+ .cse39 |c_ULTIMATE.start_main_~#array2~0#1.offset|) .cse40)))) (let ((.cse47 (select .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse42 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse42 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (<= (let ((.cse45 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse43 (store (select .cse45 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse42 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse44 (select (store .cse45 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse43) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse43 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse44 .cse6) (select .cse43 .cse8) (select .cse44 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse48 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse48 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (<= 0 (let ((.cse51 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse50 (store (select .cse51 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse48 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse49 (select (store .cse51 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse50) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse49 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse50 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse50 .cse8) (select .cse49 .cse6) 1)))))))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse52 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse52 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (let ((.cse59 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse58 (store (select .cse59 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse52 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse57 (select (store .cse59 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse58) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse53 (* (select .cse58 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 4294967295)) (.cse54 (* 4294967295 (select .cse57 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (.cse55 (* 4294967295 (select .cse58 .cse8))) (.cse56 (* 4294967295 (select .cse57 .cse6)))) (<= (+ .cse53 .cse54 .cse1 .cse55 4294967296 .cse56) (* (div (+ .cse53 .cse54 .cse1 8589934590 .cse55 .cse56) 4294967296) 4294967296)))))) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse63 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= (let ((.cse62 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse61 (store (select .cse62 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse63 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse60 (select (store .cse62 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse61) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse60 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse61 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse61 .cse8) (select .cse60 .cse6))))) 0) (not (<= .cse63 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse64 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse64 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (let ((.cse71 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse69 (store (select .cse71 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse64 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse70 (select (store .cse71 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse69) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse65 (* (select .cse70 |c_ULTIMATE.start_main_~#array1~0#1.offset|) 4294967295)) (.cse66 (* (select .cse69 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 4294967295)) (.cse67 (* 4294967295 (select .cse70 .cse6))) (.cse68 (* (select .cse69 .cse8) 4294967295))) (<= (+ .cse65 .cse66 .cse67 .cse1 .cse68 4294967296) (* (div (+ .cse65 .cse66 .cse67 .cse1 8589934590 .cse68) 4294967296) 4294967296))))))))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse72 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse72 2147483647) (<= 0 (let ((.cse75 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse73 (store (select .cse75 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse72 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse74 (select (store .cse75 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse73) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse73 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse74 .cse6) (select .cse73 .cse8) (select .cse74 |c_ULTIMATE.start_main_~#array1~0#1.offset|) 1))))) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|))))))) (not .cse41))))) is different from true [2022-11-02 20:15:22,456 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse76 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index~0#1|)) 4294967296)) (.cse37 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|) (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* |c_ULTIMATE.start_main_~index~0#1| 4)) (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))) (let ((.cse1 (* |c_ULTIMATE.start_main_~sum~0#1| 4294967295)) (.cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse8 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse38 (select .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse39 (* 4 .cse76)) (.cse40 (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1|)) (.cse41 (<= .cse76 2147483647))) (and (or (let ((.cse11 (store .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse38 (+ (- 17179869184) .cse39 |c_ULTIMATE.start_main_~#array2~0#1.offset|) .cse40)))) (let ((.cse12 (select .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse10 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (let ((.cse9 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse7 (store (select .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse10 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse5 (select (store .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse7) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse0 (* 4294967295 (select .cse7 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (.cse2 (* 4294967295 (select .cse5 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (.cse3 (* (select .cse7 .cse8) 4294967295)) (.cse4 (* (select .cse5 .cse6) 4294967295))) (<= (+ .cse0 .cse1 .cse2 .cse3 4294967296 .cse4) (* (div (+ .cse0 .cse1 .cse2 .cse3 8589934590 .cse4) 4294967296) 4294967296)))))) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse10 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse16 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= (let ((.cse15 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse14 (store (select .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse16 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse13 (select (store .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse14) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse13 .cse6) (select .cse14 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse13 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse14 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) 0) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse16 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse20 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= 0 (let ((.cse19 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse18 (store (select .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse20 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse17 (select (store .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse18) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse17 .cse6) (select .cse18 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse17 |c_ULTIMATE.start_main_~#array1~0#1.offset|) 1 (select .cse18 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))) (not (<= .cse20 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse21 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse21 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (let ((.cse28 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse27 (store (select .cse28 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse21 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse26 (select (store .cse28 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse27) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse22 (* (select .cse26 .cse6) 4294967295)) (.cse23 (* 4294967295 (select .cse27 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (.cse24 (* (select .cse27 .cse8) 4294967295)) (.cse25 (* 4294967295 (select .cse26 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) (<= (+ .cse1 .cse22 .cse23 .cse24 .cse25 4294967296) (* (div (+ .cse1 .cse22 .cse23 8589934590 .cse24 .cse25) 4294967296) 4294967296)))))) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse29 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse29 2147483647) (<= 0 (let ((.cse32 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse30 (store (select .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse29 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse31 (select (store .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse30) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse30 .cse8) (select .cse31 .cse6) |c_ULTIMATE.start_main_~sum~0#1| (select .cse31 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse30 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 1))))) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse33 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse33 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= (let ((.cse36 (store .cse11 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse12 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse34 (store (select .cse36 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse33 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse35 (select (store .cse36 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse34) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse34 .cse8) (select .cse35 .cse6) |c_ULTIMATE.start_main_~sum~0#1| (select .cse35 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse34 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|))))))) .cse41) (or (let ((.cse46 (store .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse38 (+ .cse39 |c_ULTIMATE.start_main_~#array2~0#1.offset|) .cse40)))) (let ((.cse47 (select .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse42 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse42 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (<= (let ((.cse45 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse43 (store (select .cse45 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse42 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse44 (select (store .cse45 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse43) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse43 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse44 .cse6) (select .cse43 .cse8) (select .cse44 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse48 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse48 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (<= 0 (let ((.cse51 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse50 (store (select .cse51 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse48 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse49 (select (store .cse51 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse50) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse49 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse50 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse50 .cse8) (select .cse49 .cse6) 1)))))))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse52 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse52 2147483647) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (let ((.cse59 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse58 (store (select .cse59 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse52 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse57 (select (store .cse59 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse58) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse53 (* (select .cse58 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 4294967295)) (.cse54 (* 4294967295 (select .cse57 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (.cse55 (* 4294967295 (select .cse58 .cse8))) (.cse56 (* 4294967295 (select .cse57 .cse6)))) (<= (+ .cse53 .cse54 .cse1 .cse55 4294967296 .cse56) (* (div (+ .cse53 .cse54 .cse1 8589934590 .cse55 .cse56) 4294967296) 4294967296)))))) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse63 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= (let ((.cse62 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse61 (store (select .cse62 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse63 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse60 (select (store .cse62 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse61) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse60 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse61 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse61 .cse8) (select .cse60 .cse6))))) 0) (not (<= .cse63 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|)))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse64 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (< |ULTIMATE.start_main_#t~nondet6#1| 0) (not (<= .cse64 2147483647)) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|) (let ((.cse71 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse69 (store (select .cse71 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse64 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse70 (select (store .cse71 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse69) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (let ((.cse65 (* (select .cse70 |c_ULTIMATE.start_main_~#array1~0#1.offset|) 4294967295)) (.cse66 (* (select .cse69 |c_ULTIMATE.start_main_~#array2~0#1.offset|) 4294967295)) (.cse67 (* 4294967295 (select .cse70 .cse6))) (.cse68 (* (select .cse69 .cse8) 4294967295))) (<= (+ .cse65 .cse66 .cse67 .cse1 .cse68 4294967296) (* (div (+ .cse65 .cse66 .cse67 .cse1 8589934590 .cse68) 4294967296) 4294967296))))))))) (forall ((|ULTIMATE.start_main_#t~nondet6#1| Int)) (let ((.cse72 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |ULTIMATE.start_main_#t~nondet6#1|)) 4294967296))) (or (<= .cse72 2147483647) (<= 0 (let ((.cse75 (store .cse46 |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse47 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 4 |ULTIMATE.start_main_#t~nondet6#1|)) (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|))))) (let ((.cse73 (store (select .cse75 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* .cse72 4)) (* |c_ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_#t~nondet6#1|)))) (let ((.cse74 (select (store .cse75 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse73) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse73 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse74 .cse6) (select .cse73 .cse8) (select .cse74 |c_ULTIMATE.start_main_~#array1~0#1.offset|) 1))))) (< |ULTIMATE.start_main_#t~nondet6#1| 0) (<= c_~ARR_SIZE~0 |ULTIMATE.start_main_#t~nondet6#1|))))))) (not .cse41))))) (<= c_~ARR_SIZE~0 |c_ULTIMATE.start_main_~index~0#1|) (< |c_ULTIMATE.start_main_~index~0#1| 0)) is different from true [2022-11-02 20:15:22,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:22,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975401565] [2022-11-02 20:15:22,460 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:15:22,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028461185] [2022-11-02 20:15:22,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028461185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:15:22,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:15:22,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2022-11-02 20:15:22,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470164621] [2022-11-02 20:15:22,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-02 20:15:22,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:15:22,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:22,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:15:22,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=855, Unknown=8, NotChecked=186, Total=1190 [2022-11-02 20:15:22,462 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 20 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:15:23,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:15:23,163 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2022-11-02 20:15:23,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:15:23,164 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 20 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2022-11-02 20:15:23,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:15:23,165 INFO L225 Difference]: With dead ends: 101 [2022-11-02 20:15:23,165 INFO L226 Difference]: Without dead ends: 91 [2022-11-02 20:15:23,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=179, Invalid=1015, Unknown=8, NotChecked=204, Total=1406 [2022-11-02 20:15:23,172 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 18 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 103 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:15:23,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 203 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 103 Unchecked, 0.1s Time] [2022-11-02 20:15:23,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-02 20:15:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2022-11-02 20:15:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 73 states have (on average 1.095890410958904) internal successors, (80), 73 states have internal predecessors, (80), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-02 20:15:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2022-11-02 20:15:23,203 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 38 [2022-11-02 20:15:23,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:15:23,204 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2022-11-02 20:15:23,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 20 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:15:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2022-11-02 20:15:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-02 20:15:23,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:15:23,205 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:15:23,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:23,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-02 20:15:23,432 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:15:23,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:23,432 INFO L85 PathProgramCache]: Analyzing trace with hash -285980785, now seen corresponding path program 10 times [2022-11-02 20:15:23,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:23,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902499788] [2022-11-02 20:15:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:23,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:23,450 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:15:23,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [822265920] [2022-11-02 20:15:23,451 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:15:23,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:15:23,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:23,452 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:15:23,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91a970a9-137f-4404-8f19-a0038a1c18cc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 20:15:23,811 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:15:23,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:15:23,814 WARN L261 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-02 20:15:23,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:15:23,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:15:23,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:23,952 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-11-02 20:15:23,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:15:23,967 INFO L390 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 27 treesize of output 26 [2022-11-02 20:15:24,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-11-02 20:15:24,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,334 INFO L390 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 78 treesize of output 73 [2022-11-02 20:15:24,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:24,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 103 [2022-11-02 20:15:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:25,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:25,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,079 INFO L356 Elim1Store]: treesize reduction 68, result has 43.8 percent of original size [2022-11-02 20:15:26,079 INFO L390 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 9 new quantified variables, introduced 4 case distinctions, treesize of input 178 treesize of output 195 [2022-11-02 20:15:26,089 INFO L390 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 0 case distinctions, treesize of input 171 treesize of output 153 [2022-11-02 20:15:26,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,159 INFO L356 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2022-11-02 20:15:26,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 94 treesize of output 169 [2022-11-02 20:15:26,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:26,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:26,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:27,335 INFO L356 Elim1Store]: treesize reduction 813, result has 6.9 percent of original size [2022-11-02 20:15:27,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 17 case distinctions, treesize of input 496 treesize of output 1275 [2022-11-02 20:15:31,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:31,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:31,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:31,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:31,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:32,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:32,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:32,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:32,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:33,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:33,433 INFO L244 Elim1Store]: Index analysis took 1841 ms [2022-11-02 20:15:33,637 INFO L356 Elim1Store]: treesize reduction 282, result has 0.4 percent of original size [2022-11-02 20:15:33,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 23 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 12 case distinctions, treesize of input 374 treesize of output 647 [2022-11-02 20:15:34,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:34,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:34,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:34,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:34,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:36,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:36,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:36,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:36,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:36,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:36,743 INFO L244 Elim1Store]: Index analysis took 2747 ms [2022-11-02 20:15:36,868 INFO L356 Elim1Store]: treesize reduction 234, result has 0.4 percent of original size [2022-11-02 20:15:36,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 23 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 374 treesize of output 647 [2022-11-02 20:15:37,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:37,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:38,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:38,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:38,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:38,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:38,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:38,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:38,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:39,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:39,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:39,668 INFO L244 Elim1Store]: Index analysis took 1888 ms [2022-11-02 20:15:39,803 INFO L356 Elim1Store]: treesize reduction 234, result has 0.4 percent of original size [2022-11-02 20:15:39,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 23 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 374 treesize of output 647 [2022-11-02 20:15:43,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:43,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:43,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:43,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:43,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:43,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:44,185 INFO L244 Elim1Store]: Index analysis took 498 ms [2022-11-02 20:15:44,357 INFO L356 Elim1Store]: treesize reduction 282, result has 0.4 percent of original size [2022-11-02 20:15:44,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 13 case distinctions, treesize of input 374 treesize of output 647 [2022-11-02 20:15:44,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:44,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:44,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:45,052 INFO L244 Elim1Store]: Index analysis took 427 ms [2022-11-02 20:15:45,236 INFO L356 Elim1Store]: treesize reduction 282, result has 0.4 percent of original size [2022-11-02 20:15:45,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 13 case distinctions, treesize of input 374 treesize of output 647 [2022-11-02 20:15:45,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:45,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:45,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:45,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:46,232 INFO L244 Elim1Store]: Index analysis took 573 ms [2022-11-02 20:15:46,415 INFO L356 Elim1Store]: treesize reduction 282, result has 0.4 percent of original size [2022-11-02 20:15:46,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 13 case distinctions, treesize of input 374 treesize of output 647 [2022-11-02 20:15:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:46,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,031 INFO L244 Elim1Store]: Index analysis took 312 ms [2022-11-02 20:15:47,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:47,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:47,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 23 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 288 [2022-11-02 20:15:47,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:47,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:47,816 INFO L244 Elim1Store]: Index analysis took 263 ms [2022-11-02 20:15:47,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:47,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:48,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:48,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 357 treesize of output 293 [2022-11-02 20:15:51,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:51,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:51,543 INFO L244 Elim1Store]: Index analysis took 250 ms [2022-11-02 20:15:51,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:51,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:51,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:51,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 357 treesize of output 293 [2022-11-02 20:15:52,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,328 INFO L244 Elim1Store]: Index analysis took 325 ms [2022-11-02 20:15:52,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:52,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:52,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:15:52,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:15:52,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 25 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 288 [2022-11-02 20:16:00,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:16:00,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:16:00,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:16:00,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:16:00,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 190 treesize of output 52 [2022-11-02 20:16:24,586 WARN L234 SmtUtils]: Spent 11.04s on a formula simplification. DAG size of input: 252 DAG size of output: 189 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:16:45,091 WARN L234 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)