./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array7_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_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/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_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array7_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/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_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/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 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa --- 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 20:09:16,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:09:16,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:09:16,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:09:16,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:09:16,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:09:16,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:09:16,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:09:16,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:09:16,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:09:16,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:09:16,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:09:16,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:09:16,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:09:16,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:09:16,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:09:16,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:09:16,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:09:16,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:09:16,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:09:16,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:09:16,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:09:16,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:09:16,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:09:16,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:09:16,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:09:16,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:09:16,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:09:16,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:09:16,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:09:16,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:09:16,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:09:16,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:09:16,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:09:16,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:09:16,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:09:16,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:09:16,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:09:16,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:09:16,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:09:16,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:09:16,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:09:16,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:09:16,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:09:16,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:09:16,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:09:16,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:09:16,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:09:16,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:09:16,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:09:16,849 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:09:16,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:09:16,851 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:09:16,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:09:16,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:09:16,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:09:16,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:09:16,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:09:16,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:09:16,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:09:16,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:09:16,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:09:16,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:09:16,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:09:16,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:09:16,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:09:16,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:09:16,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:09:16,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:09:16,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:09:16,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:09:16,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:09:16,858 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:09:16,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:09:16,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:09:16,859 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_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa [2022-11-02 20:09:17,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:09:17,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:09:17,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:09:17,269 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:09:17,270 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:09:17,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/array-patterns/array7_pattern.c [2022-11-02 20:09:17,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/data/de6bc5c44/5bfc4298979841b1bef5269133a5bbef/FLAGdf891534e [2022-11-02 20:09:17,898 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:09:17,899 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/sv-benchmarks/c/array-patterns/array7_pattern.c [2022-11-02 20:09:17,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/data/de6bc5c44/5bfc4298979841b1bef5269133a5bbef/FLAGdf891534e [2022-11-02 20:09:18,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/data/de6bc5c44/5bfc4298979841b1bef5269133a5bbef [2022-11-02 20:09:18,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:09:18,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:09:18,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:09:18,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:09:18,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:09:18,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0a1ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18, skipping insertion in model container [2022-11-02 20:09:18,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:09:18,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:09:18,523 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_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2022-11-02 20:09:18,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:09:18,589 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:09:18,606 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_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2022-11-02 20:09:18,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:09:18,641 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:09:18,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18 WrapperNode [2022-11-02 20:09:18,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:09:18,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:09:18,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:09:18,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:09:18,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,678 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2022-11-02 20:09:18,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:09:18,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:09:18,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:09:18,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:09:18,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,710 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:09:18,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:09:18,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:09:18,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:09:18,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (1/1) ... [2022-11-02 20:09:18,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:09:18,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:18,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:18,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:09:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:09:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:09:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:09:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:09:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:09:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:09:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:09:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:09:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:09:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:09:18,912 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:09:18,914 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:09:19,105 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:09:19,113 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:09:19,113 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:09:19,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:09:19 BoogieIcfgContainer [2022-11-02 20:09:19,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:09:19,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:09:19,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:09:19,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:09:19,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:09:18" (1/3) ... [2022-11-02 20:09:19,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3221eeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:09:19, skipping insertion in model container [2022-11-02 20:09:19,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:18" (2/3) ... [2022-11-02 20:09:19,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3221eeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:09:19, skipping insertion in model container [2022-11-02 20:09:19,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:09:19" (3/3) ... [2022-11-02 20:09:19,128 INFO L112 eAbstractionObserver]: Analyzing ICFG array7_pattern.c [2022-11-02 20:09:19,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:09:19,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:09:19,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:09:19,228 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;@628f47a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:09:19,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:09:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:09:19,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:09:19,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:19,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:19,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:09:19,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:19,250 INFO L85 PathProgramCache]: Analyzing trace with hash -440982883, now seen corresponding path program 1 times [2022-11-02 20:09:19,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:19,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145521017] [2022-11-02 20:09:19,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:19,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:19,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:09:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:19,468 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 20:09:19,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:09:19,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145521017] [2022-11-02 20:09:19,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145521017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:09:19,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:09:19,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:09:19,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447529117] [2022-11-02 20:09:19,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:09:19,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:09:19,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:09:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:09:19,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:09:19,517 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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 20:09:19,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:09:19,539 INFO L93 Difference]: Finished difference Result 49 states and 71 transitions. [2022-11-02 20:09:19,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:09:19,542 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 20:09:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:09:19,550 INFO L225 Difference]: With dead ends: 49 [2022-11-02 20:09:19,550 INFO L226 Difference]: Without dead ends: 22 [2022-11-02 20:09:19,554 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 20:09:19,558 INFO L413 NwaCegarLoop]: 30 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, 30 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 20:09:19,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:09:19,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-02 20:09:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-02 20:09:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:09:19,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-02 20:09:19,600 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2022-11-02 20:09:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:09:19,601 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-02 20:09:19,602 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 20:09:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-02 20:09:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 20:09:19,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:19,604 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:19,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:09:19,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:09:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1396045698, now seen corresponding path program 1 times [2022-11-02 20:09:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:19,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934100915] [2022-11-02 20:09:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:09:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:19,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-02 20:09:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 20:09:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:20,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:09:20,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:09:20,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934100915] [2022-11-02 20:09:20,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934100915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:09:20,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:09:20,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:09:20,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553333131] [2022-11-02 20:09:20,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:09:20,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:09:20,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:09:20,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:09:20,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:09:20,023 INFO L87 Difference]: Start difference. First operand 22 states and 26 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:09:20,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:09:20,058 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-11-02 20:09:20,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:09:20,059 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2022-11-02 20:09:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:09:20,069 INFO L225 Difference]: With dead ends: 27 [2022-11-02 20:09:20,069 INFO L226 Difference]: Without dead ends: 23 [2022-11-02 20:09:20,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 20:09:20,071 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 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 20:09:20,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:09:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-02 20:09:20,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-02 20:09:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:09:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-02 20:09:20,081 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 27 [2022-11-02 20:09:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:09:20,088 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-02 20:09:20,093 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:09:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-02 20:09:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 20:09:20,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:20,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:20,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:09:20,098 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:09:20,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1623352868, now seen corresponding path program 1 times [2022-11-02 20:09:20,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:20,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096258129] [2022-11-02 20:09:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:20,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:09:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:20,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-02 20:09:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 20:09:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:09:20,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:09:20,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096258129] [2022-11-02 20:09:20,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096258129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:09:20,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:09:20,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:09:20,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114534488] [2022-11-02 20:09:20,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:09:20,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:09:20,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:09:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:09:20,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:09:20,421 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:09:20,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:09:20,490 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-11-02 20:09:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:09:20,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-11-02 20:09:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:09:20,493 INFO L225 Difference]: With dead ends: 43 [2022-11-02 20:09:20,493 INFO L226 Difference]: Without dead ends: 26 [2022-11-02 20:09:20,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 20:09:20,495 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:09:20,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 61 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:09:20,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-02 20:09:20,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-02 20:09:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:09:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-02 20:09:20,505 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 29 [2022-11-02 20:09:20,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:09:20,506 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-02 20:09:20,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:09:20,506 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-02 20:09:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-02 20:09:20,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:20,508 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:20,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:09:20,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:09:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:20,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1083978846, now seen corresponding path program 1 times [2022-11-02 20:09:20,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:20,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294752302] [2022-11-02 20:09:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:20,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:20,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:09:20,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074686381] [2022-11-02 20:09:20,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:20,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:09:20,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:20,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:09:20,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:09:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:20,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 20:09:20,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-02 20:09:20,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:09:21,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:09:21,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:09:21,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294752302] [2022-11-02 20:09:21,247 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:09:21,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074686381] [2022-11-02 20:09:21,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074686381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:09:21,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:09:21,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 15 [2022-11-02 20:09:21,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754959512] [2022-11-02 20:09:21,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:09:21,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 20:09:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:09:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 20:09:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:09:21,251 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-02 20:09:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:09:21,570 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2022-11-02 20:09:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:09:21,572 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 31 [2022-11-02 20:09:21,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:09:21,573 INFO L225 Difference]: With dead ends: 73 [2022-11-02 20:09:21,573 INFO L226 Difference]: Without dead ends: 42 [2022-11-02 20:09:21,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:09:21,575 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 43 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:09:21,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 110 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:09:21,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-02 20:09:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2022-11-02 20:09:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:09:21,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-02 20:09:21,591 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 31 [2022-11-02 20:09:21,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:09:21,592 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-02 20:09:21,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-02 20:09:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-02 20:09:21,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 20:09:21,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:21,596 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:21,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-02 20:09:21,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:09:21,822 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:09:21,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:21,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1214758882, now seen corresponding path program 2 times [2022-11-02 20:09:21,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:21,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264506103] [2022-11-02 20:09:21,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:21,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:21,854 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:09:21,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024306015] [2022-11-02 20:09:21,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:09:21,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:09:21,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:21,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:09:21,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:09:22,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:09:22,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:09:22,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:09:22,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:09:22,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:09:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:09:22,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:09:22,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264506103] [2022-11-02 20:09:22,355 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:09:22,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024306015] [2022-11-02 20:09:22,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024306015] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:09:22,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:09:22,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 20:09:22,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590649261] [2022-11-02 20:09:22,359 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:09:22,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:09:22,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:09:22,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:09:22,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:09:22,361 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-02 20:09:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:09:22,626 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-11-02 20:09:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:09:22,627 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 35 [2022-11-02 20:09:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:09:22,628 INFO L225 Difference]: With dead ends: 40 [2022-11-02 20:09:22,628 INFO L226 Difference]: Without dead ends: 36 [2022-11-02 20:09:22,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:09:22,630 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 44 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:09:22,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 68 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:09:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-02 20:09:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-02 20:09:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 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 20:09:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-11-02 20:09:22,639 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 35 [2022-11-02 20:09:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:09:22,639 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-02 20:09:22,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-02 20:09:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-11-02 20:09:22,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 20:09:22,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:22,641 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:22,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:22,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:09:22,842 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:09:22,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:22,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1618850078, now seen corresponding path program 3 times [2022-11-02 20:09:22,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:22,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087692940] [2022-11-02 20:09:22,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:22,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:22,872 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:09:22,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443255476] [2022-11-02 20:09:22,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:09:22,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:09:22,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:22,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:09:22,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:09:23,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-02 20:09:23,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:09:23,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-02 20:09:23,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:23,377 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 20:09:23,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:23,461 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 32 treesize of output 36 [2022-11-02 20:09:23,475 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 33 treesize of output 33 [2022-11-02 20:09:23,482 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 15 treesize of output 14 [2022-11-02 20:09:23,495 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 14 treesize of output 13 [2022-11-02 20:09:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:23,636 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 47 treesize of output 46 [2022-11-02 20:09:23,650 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 40 treesize of output 38 [2022-11-02 20:09:23,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:23,658 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 20 treesize of output 24 [2022-11-02 20:09:23,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:23,679 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 21 treesize of output 25 [2022-11-02 20:09:23,926 INFO L356 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2022-11-02 20:09:23,927 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 2 case distinctions, treesize of input 157 treesize of output 113 [2022-11-02 20:09:23,972 INFO L356 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2022-11-02 20:09:23,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 118 [2022-11-02 20:09:23,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:24,026 INFO L356 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2022-11-02 20:09:24,026 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 91 treesize of output 76 [2022-11-02 20:09:24,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:24,104 INFO L356 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-02 20:09:24,105 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 25 treesize of output 34 [2022-11-02 20:09:24,120 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 14 treesize of output 13 [2022-11-02 20:09:24,146 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 22 treesize of output 11 [2022-11-02 20:09:24,155 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 11 treesize of output 5 [2022-11-02 20:09:26,584 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-02 20:09:26,585 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 1150 treesize of output 1067 [2022-11-02 20:09:26,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:09:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:09:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:09:26,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:26,927 INFO L244 Elim1Store]: Index analysis took 266 ms [2022-11-02 20:09:26,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 440 treesize of output 506 [2022-11-02 20:09:27,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:09:27,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:09:27,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:09:27,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,138 INFO L244 Elim1Store]: Index analysis took 132 ms [2022-11-02 20:09:27,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 648 treesize of output 834 [2022-11-02 20:09:27,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:27,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 294 [2022-11-02 20:09:28,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:28,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:28,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:28,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:28,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:28,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:28,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 105 [2022-11-02 20:09:32,617 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 20:09:32,618 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 215 treesize of output 187 [2022-11-02 20:09:32,707 INFO L356 Elim1Store]: treesize reduction 106, result has 2.8 percent of original size [2022-11-02 20:09:32,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 195 treesize of output 106 [2022-11-02 20:09:32,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:09:32,809 INFO L356 Elim1Store]: treesize reduction 64, result has 4.5 percent of original size [2022-11-02 20:09:32,809 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 131 treesize of output 69 [2022-11-02 20:09:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:09:33,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:10:17,658 WARN L234 SmtUtils]: Spent 18.53s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:10:46,018 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse1 (* 4294967295 |c_ULTIMATE.start_main_~pivot~0#1|))) (let ((.cse32 (+ |c_ULTIMATE.start_main_~pivot~0#1| 4294967296)) (.cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse7 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse8 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (.cse5 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|)) (.cse35 (+ .cse1 4294967296)) (.cse2 (+ 2147483647 |c_ULTIMATE.start_main_~pivot~0#1|)) (.cse17 (* |c_ULTIMATE.start_main_~pivot~0#1| 4294967297)) (.cse18 (+ .cse1 c_~ARR_SIZE~0)) (.cse19 (+ 2147483647 .cse1))) (and (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse20 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse21 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse16 (+ .cse20 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse21 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse3 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse21)) (.cse0 (+ .cse20 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse21))) (or (< .cse0 .cse1) (< .cse2 .cse3) (= (let ((.cse11 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse14 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4)) (.cse13 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296)))) (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse11 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse14)) (select .cse15 (+ .cse13 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))))) (let ((.cse4 (store (select .cse10 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse11 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse12 (+ .cse13 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse12 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14))))))) (let ((.cse6 (select (store .cse10 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse4) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse4 .cse5) (select .cse6 |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse4 .cse7) (select .cse4 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse6 .cse8) (select .cse6 .cse9)))))) 0) (< .cse16 .cse17) (<= .cse18 .cse16) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 2147483647) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (< .cse3 |c_ULTIMATE.start_main_~pivot~0#1|) (< .cse19 .cse0))))) (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse34 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse33 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse24 (+ .cse34 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse33 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse23 (+ .cse34 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse33)) (.cse22 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse33))) (or (<= .cse22 .cse2) (< .cse23 .cse1) (< .cse24 .cse17) (<= .cse18 .cse24) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 2147483647) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (< .cse19 .cse23) (= (let ((.cse28 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse31 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4)) (.cse30 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296)))) (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse28 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse31)) (select .cse15 (+ .cse30 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))))) (let ((.cse26 (store (select .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse28 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse29 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse29 (+ .cse30 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse29 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse31))))))) (let ((.cse25 (select (store .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse26) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse25 .cse8) (select .cse26 .cse5) |c_ULTIMATE.start_main_~sum~0#1| (select .cse26 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse25 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse25 .cse9) (select .cse26 .cse7)))))) 0) (<= .cse32 .cse22))))) (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse47 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse46 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse38 (+ .cse47 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse46 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse36 (+ .cse47 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse46)) (.cse37 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse46))) (or (<= .cse35 .cse36) (<= .cse37 .cse2) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (< .cse38 .cse17) (<= .cse18 .cse38) (<= .cse36 .cse19) (= (let ((.cse42 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse44 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296))) (.cse45 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4))) (let ((.cse41 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse42 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ .cse44 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (select .cse15 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse45))))))) (let ((.cse40 (store (select .cse41 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse42 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse43 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse43 (+ .cse44 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse43 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse45))))))) (let ((.cse39 (select (store .cse41 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse40) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse39 .cse9) |c_ULTIMATE.start_main_~sum~0#1| (select .cse40 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse40 .cse5) (select .cse39 .cse8) (select .cse39 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse40 .cse7)))))) 0) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 0) (<= .cse32 .cse37))))) (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse58 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse59 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse50 (+ .cse58 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse59 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse49 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse59)) (.cse48 (+ .cse58 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse59))) (or (< .cse48 .cse1) (< .cse2 .cse49) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (< .cse50 .cse17) (<= .cse18 .cse50) (< .cse49 |c_ULTIMATE.start_main_~pivot~0#1|) (< .cse19 .cse48) (= (let ((.cse54 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse57 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4)) (.cse56 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296)))) (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse54 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse57)) (select .cse15 (+ .cse56 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))))) (let ((.cse52 (store (select .cse53 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse54 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse55 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse55 (+ .cse56 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse55 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse57))))))) (let ((.cse51 (select (store .cse53 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse52) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse51 .cse8) (select .cse52 .cse5) (select .cse51 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse52 .cse7) (select .cse51 .cse9) |c_ULTIMATE.start_main_~sum~0#1| (select .cse52 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))) 0) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 0))))) (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse71 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse70 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse62 (+ .cse71 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse70 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse61 (+ .cse71 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse70)) (.cse60 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse70))) (or (<= .cse60 .cse2) (< .cse61 .cse1) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (< .cse62 .cse17) (<= .cse18 .cse62) (< .cse19 .cse61) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 0) (<= .cse32 .cse60) (= (let ((.cse66 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse69 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4)) (.cse68 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296)))) (let ((.cse65 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse66 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse69)) (select .cse15 (+ .cse68 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))))) (let ((.cse63 (store (select .cse65 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse66 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse67 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse67 (+ .cse68 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse67 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse69))))))) (let ((.cse64 (select (store .cse65 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse63) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse63 .cse7) |c_ULTIMATE.start_main_~sum~0#1| (select .cse64 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse64 .cse9) (select .cse64 .cse8) (select .cse63 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse63 .cse5)))))) 0))))) (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse83 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse82 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse74 (+ .cse83 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse82 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse72 (+ .cse83 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse82)) (.cse73 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse82))) (or (<= .cse35 .cse72) (<= .cse73 .cse2) (< .cse74 .cse17) (= (let ((.cse78 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse80 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296))) (.cse81 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4))) (let ((.cse77 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse78 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ .cse80 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (select .cse15 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse81))))))) (let ((.cse76 (store (select .cse77 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse78 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse79 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse79 (+ .cse80 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse79 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse81))))))) (let ((.cse75 (select (store .cse77 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse76) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse75 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse75 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse75 .cse9) (select .cse76 .cse7) (select .cse76 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse76 .cse5)))))) 0) (<= .cse18 .cse74) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 2147483647) (<= .cse72 .cse19) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (<= .cse32 .cse73))))) (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse95 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse94 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse93 (+ .cse95 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse94 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse84 (+ .cse95 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse94)) (.cse85 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse94))) (or (<= .cse35 .cse84) (< .cse2 .cse85) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (= (let ((.cse89 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse92 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4)) (.cse91 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296)))) (let ((.cse88 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse89 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse92)) (select .cse15 (+ .cse91 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|))))))) (let ((.cse87 (store (select .cse88 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse89 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse90 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse90 (+ .cse91 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse90 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse92))))))) (let ((.cse86 (select (store .cse88 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse87) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse86 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse87 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse86 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse86 .cse9) (select .cse87 .cse5) (select .cse87 .cse7)))))) 0) (< .cse93 .cse17) (<= .cse18 .cse93) (<= .cse84 .cse19) (< .cse85 |c_ULTIMATE.start_main_~pivot~0#1|) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 0))))) (forall ((|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| Int) (v_ArrVal_212 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~index~0#1_86| Int)) (let ((.cse107 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_86_112|)) (.cse106 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296))) (let ((.cse105 (+ .cse107 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse106 (* |aux_div_ULTIMATE.start_main_~index~0#1_86| 4294967296))) (.cse103 (+ .cse107 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse106)) (.cse104 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse106))) (or (= (let ((.cse99 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 4294967296) 4)) (.cse102 (* (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| .cse1) 4294967296) 4)) (.cse101 (* 4 (mod (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| |c_ULTIMATE.start_main_~pivot~0#1|) 4294967296)))) (let ((.cse98 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse15 (+ .cse99 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (+ (select .cse15 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse102)) (select .cse15 (+ .cse101 (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset|))))))) (let ((.cse97 (store (select .cse98 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse99 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse100 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_212) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse100 (+ .cse101 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse100 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse102))))))) (let ((.cse96 (select (store .cse98 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse97) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse96 .cse9) (select .cse97 .cse7) |c_ULTIMATE.start_main_~sum~0#1| (select .cse97 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse96 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse96 .cse8) (select .cse97 .cse5)))))) 0) (<= .cse35 .cse103) (< .cse2 .cse104) (< .cse105 .cse17) (<= .cse18 .cse105) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109| 2147483647) (<= .cse103 .cse19) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_86_112_109|) (< .cse104 |c_ULTIMATE.start_main_~pivot~0#1|)))))))) (< 3 c_~ARR_SIZE~0)) is different from true [2022-11-02 20:10:46,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:46,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087692940] [2022-11-02 20:10:46,031 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:10:46,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443255476] [2022-11-02 20:10:46,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443255476] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:10:46,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:10:46,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2022-11-02 20:10:46,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042234130] [2022-11-02 20:10:46,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-02 20:10:46,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:10:46,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:10:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=886, Unknown=5, NotChecked=62, Total=1122 [2022-11-02 20:10:46,034 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 21 states have internal predecessors, (30), 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 20:10:49,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:10:49,092 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2022-11-02 20:10:49,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-02 20:10:49,093 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 21 states have internal predecessors, (30), 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) Word has length 39 [2022-11-02 20:10:49,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:10:49,094 INFO L225 Difference]: With dead ends: 67 [2022-11-02 20:10:49,094 INFO L226 Difference]: Without dead ends: 51 [2022-11-02 20:10:49,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 42.2s TimeCoverageRelationStatistics Valid=196, Invalid=1062, Unknown=6, NotChecked=68, Total=1332 [2022-11-02 20:10:49,096 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:10:49,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 173 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 131 Unchecked, 0.1s Time] [2022-11-02 20:10:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-02 20:10:49,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2022-11-02 20:10:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.105263157894737) internal successors, (42), 38 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-02 20:10:49,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-02 20:10:49,111 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 39 [2022-11-02 20:10:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:10:49,112 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-02 20:10:49,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 21 states have internal predecessors, (30), 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 20:10:49,113 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-02 20:10:49,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-02 20:10:49,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:10:49,114 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:10:49,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:49,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:10:49,323 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:10:49,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:49,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1811508960, now seen corresponding path program 4 times [2022-11-02 20:10:49,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:49,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190701141] [2022-11-02 20:10:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:49,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:49,341 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:10:49,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709542999] [2022-11-02 20:10:49,341 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:10:49,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:10:49,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:49,343 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:10:49,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:10:49,504 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:10:49,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:10:49,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:10:49,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:10:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:10:49,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:10:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:10:49,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:49,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190701141] [2022-11-02 20:10:49,853 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:10:49,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709542999] [2022-11-02 20:10:49,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709542999] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:10:49,853 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:10:49,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-02 20:10:49,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500949952] [2022-11-02 20:10:49,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:10:49,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 20:10:49,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 20:10:49,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:10:49,856 INFO L87 Difference]: Start difference. First operand 47 states and 52 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:10:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:10:50,312 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-11-02 20:10:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:10:50,313 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2022-11-02 20:10:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:10:50,314 INFO L225 Difference]: With dead ends: 75 [2022-11-02 20:10:50,314 INFO L226 Difference]: Without dead ends: 71 [2022-11-02 20:10:50,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 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 20:10:50,316 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 57 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:10:50,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 188 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:10:50,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-02 20:10:50,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2022-11-02 20:10:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 47 states have internal predecessors, (52), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-02 20:10:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2022-11-02 20:10:50,335 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 41 [2022-11-02 20:10:50,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:10:50,336 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2022-11-02 20:10:50,336 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-02 20:10:50,336 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2022-11-02 20:10:50,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-02 20:10:50,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:10:50,338 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:10:50,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:10:50,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:10:50,551 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:10:50,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:50,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1451589122, now seen corresponding path program 5 times [2022-11-02 20:10:50,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:50,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717783872] [2022-11-02 20:10:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:50,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:50,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:10:50,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984001911] [2022-11-02 20:10:50,566 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:10:50,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:10:50,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:50,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:10:50,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cfaebf1-d6cf-4175-9786-7ccf73bdbff2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:10:51,365 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-02 20:10:51,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:10:51,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-02 20:10:51,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:10:51,404 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 20:10:51,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,464 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 32 treesize of output 36 [2022-11-02 20:10:51,470 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 33 treesize of output 33 [2022-11-02 20:10:51,476 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 15 treesize of output 14 [2022-11-02 20:10:51,487 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 14 treesize of output 13 [2022-11-02 20:10:51,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,623 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 68 treesize of output 67 [2022-11-02 20:10:51,632 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 49 treesize of output 47 [2022-11-02 20:10:51,639 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 33 treesize of output 37 [2022-11-02 20:10:51,658 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 29 treesize of output 33 [2022-11-02 20:10:51,843 INFO L356 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2022-11-02 20:10:51,843 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 2 case distinctions, treesize of input 107 treesize of output 87 [2022-11-02 20:10:51,852 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2022-11-02 20:10:51,893 INFO L356 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2022-11-02 20:10:51,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 74 [2022-11-02 20:10:51,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 36 [2022-11-02 20:10:51,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:51,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 39 [2022-11-02 20:10:52,016 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:10:52,017 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 50 [2022-11-02 20:10:52,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:10:52,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:10:52,037 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 23 [2022-11-02 20:10:52,069 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 11 treesize of output 5 [2022-11-02 20:10:52,298 INFO L356 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2022-11-02 20:10:52,299 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 2 case distinctions, treesize of input 199 treesize of output 145 [2022-11-02 20:10:52,337 INFO L356 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2022-11-02 20:10:52,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 150 [2022-11-02 20:10:52,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 101 [2022-11-02 20:10:52,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:52,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2022-11-02 20:10:52,395 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 14 treesize of output 13 [2022-11-02 20:10:54,665 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-02 20:10:54,666 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 995 treesize of output 924 [2022-11-02 20:10:54,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:54,825 INFO L244 Elim1Store]: Index analysis took 124 ms [2022-11-02 20:10:54,878 INFO L356 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2022-11-02 20:10:54,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 39 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 451 treesize of output 542 [2022-11-02 20:10:54,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 306 [2022-11-02 20:10:55,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:10:55,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 84 [2022-11-02 20:10:55,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:55,714 INFO L244 Elim1Store]: Index analysis took 486 ms [2022-11-02 20:10:55,792 INFO L356 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2022-11-02 20:10:55,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 39 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 449 treesize of output 448 [2022-11-02 20:10:55,914 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 0 case distinctions, treesize of input 91 treesize of output 135 [2022-11-02 20:10:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:56,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:56,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:56,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:10:56,879 INFO L244 Elim1Store]: Index analysis took 126 ms [2022-11-02 20:10:57,236 INFO L356 Elim1Store]: treesize reduction 73, result has 31.8 percent of original size [2022-11-02 20:10:57,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 128 [2022-11-02 20:10:57,327 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 21 treesize of output 13 [2022-11-02 20:11:08,480 WARN L234 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 138 DAG size of output: 136 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:11:16,289 WARN L234 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:11:24,267 WARN L234 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:11:36,620 WARN L234 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:11:45,290 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 20:11:45,290 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 454 treesize of output 394 [2022-11-02 20:11:50,829 WARN L234 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 156 DAG size of output: 116 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-02 20:11:50,830 INFO L356 Elim1Store]: treesize reduction 180, result has 63.8 percent of original size [2022-11-02 20:11:50,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 424 treesize of output 652 [2022-11-02 20:11:51,076 INFO L244 Elim1Store]: Index analysis took 214 ms [2022-11-02 20:11:54,681 INFO L356 Elim1Store]: treesize reduction 130, result has 69.4 percent of original size [2022-11-02 20:11:54,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 423 treesize of output 645