./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa --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 2aebf3cfbf85ca5d76e40b9ce94a108ab82985532ad1ea09b88a009b3e11ff5a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 16:56:55,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 16:56:55,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 16:56:55,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 16:56:55,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 16:56:55,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 16:56:55,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 16:56:55,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 16:56:55,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 16:56:55,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 16:56:55,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 16:56:55,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 16:56:55,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 16:56:55,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 16:56:55,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 16:56:55,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 16:56:55,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 16:56:55,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 16:56:55,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 16:56:55,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 16:56:55,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 16:56:55,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 16:56:55,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 16:56:55,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 16:56:55,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 16:56:55,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 16:56:55,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 16:56:55,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 16:56:55,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 16:56:55,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 16:56:55,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 16:56:55,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 16:56:55,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 16:56:55,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 16:56:55,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 16:56:55,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 16:56:55,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 16:56:55,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 16:56:55,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 16:56:55,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 16:56:55,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 16:56:55,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 16:56:55,934 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 16:56:55,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 16:56:55,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 16:56:55,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 16:56:55,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 16:56:55,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 16:56:55,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 16:56:55,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 16:56:55,937 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 16:56:55,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 16:56:55,938 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 16:56:55,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 16:56:55,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 16:56:55,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 16:56:55,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 16:56:55,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 16:56:55,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 16:56:55,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 16:56:55,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 16:56:55,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 16:56:55,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 16:56:55,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 16:56:55,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 16:56:55,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 16:56:55,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 16:56:55,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 16:56:55,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 16:56:55,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 16:56:55,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 16:56:55,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 16:56:55,942 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 16:56:55,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 16:56:55,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 16:56:55,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 16:56:55,943 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_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aebf3cfbf85ca5d76e40b9ce94a108ab82985532ad1ea09b88a009b3e11ff5a [2021-12-06 16:56:56,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 16:56:56,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 16:56:56,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 16:56:56,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 16:56:56,160 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 16:56:56,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-fpi/sina3.c [2021-12-06 16:56:56,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/data/e06502711/8ba400cdf38b4c13ae3bd9dcab42a324/FLAG72d03d9cf [2021-12-06 16:56:56,568 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 16:56:56,569 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/sv-benchmarks/c/array-fpi/sina3.c [2021-12-06 16:56:56,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/data/e06502711/8ba400cdf38b4c13ae3bd9dcab42a324/FLAG72d03d9cf [2021-12-06 16:56:56,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/data/e06502711/8ba400cdf38b4c13ae3bd9dcab42a324 [2021-12-06 16:56:56,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 16:56:56,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 16:56:56,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 16:56:56,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 16:56:56,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 16:56:56,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0fd99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56, skipping insertion in model container [2021-12-06 16:56:56,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 16:56:56,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 16:56:56,706 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_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/sv-benchmarks/c/array-fpi/sina3.c[588,601] [2021-12-06 16:56:56,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 16:56:56,731 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 16:56:56,742 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_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/sv-benchmarks/c/array-fpi/sina3.c[588,601] [2021-12-06 16:56:56,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 16:56:56,760 INFO L208 MainTranslator]: Completed translation [2021-12-06 16:56:56,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56 WrapperNode [2021-12-06 16:56:56,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 16:56:56,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 16:56:56,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 16:56:56,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 16:56:56,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,797 INFO L137 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2021-12-06 16:56:56,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 16:56:56,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 16:56:56,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 16:56:56,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 16:56:56,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 16:56:56,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 16:56:56,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 16:56:56,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 16:56:56,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2021-12-06 16:56:56,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 16:56:56,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:56:56,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 16:56:56,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 16:56:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 16:56:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 16:56:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 16:56:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 16:56:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 16:56:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 16:56:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 16:56:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 16:56:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 16:56:56,940 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 16:56:56,944 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 16:56:57,055 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 16:56:57,060 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 16:56:57,061 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-06 16:56:57,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:57 BoogieIcfgContainer [2021-12-06 16:56:57,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 16:56:57,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 16:56:57,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 16:56:57,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 16:56:57,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:56:56" (1/3) ... [2021-12-06 16:56:57,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23de1486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:57, skipping insertion in model container [2021-12-06 16:56:57,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (2/3) ... [2021-12-06 16:56:57,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23de1486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:57, skipping insertion in model container [2021-12-06 16:56:57,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:57" (3/3) ... [2021-12-06 16:56:57,069 INFO L111 eAbstractionObserver]: Analyzing ICFG sina3.c [2021-12-06 16:56:57,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 16:56:57,073 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 16:56:57,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 16:56:57,115 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 16:56:57,115 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 16:56:57,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:56:57,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 16:56:57,133 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:56:57,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:56:57,135 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:56:57,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:56:57,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2021-12-06 16:56:57,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:56:57,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210170005] [2021-12-06 16:56:57,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:56:57,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:56:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:56:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:56:57,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:56:57,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210170005] [2021-12-06 16:56:57,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210170005] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:56:57,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:56:57,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 16:56:57,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119947860] [2021-12-06 16:56:57,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:56:57,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 16:56:57,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:56:57,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 16:56:57,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 16:56:57,320 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:56:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:56:57,335 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-12-06 16:56:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 16:56:57,337 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 16:56:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:56:57,345 INFO L225 Difference]: With dead ends: 50 [2021-12-06 16:56:57,345 INFO L226 Difference]: Without dead ends: 23 [2021-12-06 16:56:57,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 16:56:57,352 INFO L933 BasicCegarLoop]: 32 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, 32 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 [2021-12-06 16:56:57,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:56:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-06 16:56:57,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-06 16:56:57,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:56:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-06 16:56:57,381 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-12-06 16:56:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:56:57,381 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-06 16:56:57,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:56:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-06 16:56:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 16:56:57,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:56:57,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:56:57,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 16:56:57,383 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:56:57,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:56:57,384 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2021-12-06 16:56:57,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:56:57,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332014403] [2021-12-06 16:56:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:56:57,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:56:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:56:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:56:57,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:56:57,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332014403] [2021-12-06 16:56:57,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332014403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:56:57,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:56:57,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 16:56:57,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84818328] [2021-12-06 16:56:57,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:56:57,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 16:56:57,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:56:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 16:56:57,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 16:56:57,455 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:56:57,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:56:57,512 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-12-06 16:56:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 16:56:57,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 16:56:57,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:56:57,513 INFO L225 Difference]: With dead ends: 53 [2021-12-06 16:56:57,513 INFO L226 Difference]: Without dead ends: 37 [2021-12-06 16:56:57,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 16:56:57,515 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:56:57,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:56:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-06 16:56:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2021-12-06 16:56:57,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:56:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-12-06 16:56:57,521 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2021-12-06 16:56:57,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:56:57,522 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-12-06 16:56:57,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:56:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-12-06 16:56:57,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 16:56:57,523 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:56:57,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:56:57,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 16:56:57,523 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:56:57,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:56:57,524 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2021-12-06 16:56:57,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:56:57,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437545589] [2021-12-06 16:56:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:56:57,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:56:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:56:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:56:58,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:56:58,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437545589] [2021-12-06 16:56:58,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437545589] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:56:58,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234919018] [2021-12-06 16:56:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:56:58,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:56:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:56:58,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:56:58,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 16:56:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:56:58,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-06 16:56:58,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:56:58,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:58,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-12-06 16:56:58,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 16:56:58,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:58,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 16:56:58,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:58,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:58,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-12-06 16:56:58,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:58,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:58,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 43 treesize of output 33 [2021-12-06 16:56:59,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:59,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:59,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 43 treesize of output 33 [2021-12-06 16:56:59,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:59,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:56:59,368 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 16:56:59,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 36 [2021-12-06 16:56:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:56:59,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:56:59,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:56:59,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-12-06 16:56:59,828 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:56:59,828 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:56:59,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:56:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:56:59,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234919018] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:56:59,837 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:56:59,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 38 [2021-12-06 16:56:59,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821200745] [2021-12-06 16:56:59,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:56:59,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-12-06 16:56:59,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:56:59,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-12-06 16:56:59,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1192, Unknown=0, NotChecked=0, Total=1406 [2021-12-06 16:56:59,841 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 38 states, 38 states have (on average 1.605263157894737) internal successors, (61), 38 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:00,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:00,271 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-12-06 16:57:00,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 16:57:00,272 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.605263157894737) internal successors, (61), 38 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-06 16:57:00,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:00,273 INFO L225 Difference]: With dead ends: 55 [2021-12-06 16:57:00,273 INFO L226 Difference]: Without dead ends: 53 [2021-12-06 16:57:00,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 23 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=281, Invalid=1441, Unknown=0, NotChecked=0, Total=1722 [2021-12-06 16:57:00,275 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 43 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:00,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 114 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 334 Invalid, 0 Unknown, 11 Unchecked, 0.3s Time] [2021-12-06 16:57:00,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-06 16:57:00,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-12-06 16:57:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2021-12-06 16:57:00,282 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 24 [2021-12-06 16:57:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:00,282 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-12-06 16:57:00,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.605263157894737) internal successors, (61), 38 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:00,282 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2021-12-06 16:57:00,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 16:57:00,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:00,283 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:00,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:00,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:00,485 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:57:00,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:00,486 INFO L85 PathProgramCache]: Analyzing trace with hash 831040416, now seen corresponding path program 2 times [2021-12-06 16:57:00,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:00,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598901069] [2021-12-06 16:57:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:00,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 16:57:00,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:00,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598901069] [2021-12-06 16:57:00,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598901069] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:00,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060584759] [2021-12-06 16:57:00,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 16:57:00,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:00,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:00,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:00,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 16:57:00,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 16:57:00,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:57:00,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 16:57:00,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 16:57:00,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 16:57:00,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060584759] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:00,686 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:00,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-12-06 16:57:00,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115581611] [2021-12-06 16:57:00,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:00,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 16:57:00,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:00,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 16:57:00,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-06 16:57:00,688 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:00,762 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2021-12-06 16:57:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 16:57:00,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-06 16:57:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:00,764 INFO L225 Difference]: With dead ends: 110 [2021-12-06 16:57:00,764 INFO L226 Difference]: Without dead ends: 66 [2021-12-06 16:57:00,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-12-06 16:57:00,765 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 56 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:00,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 61 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:57:00,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-12-06 16:57:00,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2021-12-06 16:57:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:00,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2021-12-06 16:57:00,771 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 26 [2021-12-06 16:57:00,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:00,771 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-12-06 16:57:00,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:00,772 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2021-12-06 16:57:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 16:57:00,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:00,772 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:00,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 16:57:00,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:00,974 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:57:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash -587916192, now seen corresponding path program 3 times [2021-12-06 16:57:00,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:00,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289519335] [2021-12-06 16:57:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:00,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 16:57:01,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:01,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289519335] [2021-12-06 16:57:01,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289519335] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:01,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838729474] [2021-12-06 16:57:01,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 16:57:01,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:01,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:01,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:01,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 16:57:01,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-06 16:57:01,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:57:01,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 16:57:01,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 16:57:01,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 16:57:01,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838729474] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:01,178 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:01,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-12-06 16:57:01,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900087857] [2021-12-06 16:57:01,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:01,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 16:57:01,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 16:57:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-06 16:57:01,180 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:01,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:01,266 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-12-06 16:57:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 16:57:01,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-06 16:57:01,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:01,268 INFO L225 Difference]: With dead ends: 63 [2021-12-06 16:57:01,268 INFO L226 Difference]: Without dead ends: 50 [2021-12-06 16:57:01,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-12-06 16:57:01,269 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 60 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:01,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 53 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:57:01,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-06 16:57:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2021-12-06 16:57:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-12-06 16:57:01,276 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2021-12-06 16:57:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:01,276 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-12-06 16:57:01,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-12-06 16:57:01,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 16:57:01,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:01,277 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:01,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 16:57:01,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:01,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:57:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash -826292134, now seen corresponding path program 4 times [2021-12-06 16:57:01,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:01,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104809861] [2021-12-06 16:57:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:01,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:02,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:02,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104809861] [2021-12-06 16:57:02,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104809861] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:02,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048676580] [2021-12-06 16:57:02,390 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 16:57:02,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:02,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:02,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:02,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 16:57:02,429 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 16:57:02,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:57:02,431 WARN L261 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 65 conjunts are in the unsatisfiable core [2021-12-06 16:57:02,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:02,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-12-06 16:57:02,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 16:57:02,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 16:57:02,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-12-06 16:57:02,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-12-06 16:57:02,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:02,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-12-06 16:57:03,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:57:03,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2021-12-06 16:57:03,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 45 [2021-12-06 16:57:03,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,377 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:57:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:57:03,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 53 [2021-12-06 16:57:03,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,602 INFO L354 Elim1Store]: treesize reduction 33, result has 31.3 percent of original size [2021-12-06 16:57:03,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 66 [2021-12-06 16:57:03,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:57:03,875 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 16:57:03,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 36 [2021-12-06 16:57:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:03,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:06,061 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_229 Int)) (= (+ c_~N~0 1) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|))))) is different from false [2021-12-06 16:57:18,014 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_75| Int)) (or (forall ((v_ArrVal_221 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (v_ArrVal_229 Int)) (or (= (+ c_~N~0 1) (select (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_75| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_221)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse0 (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse2 .cse3))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_69| 1))) (< |v_ULTIMATE.start_main_~i~0#1_75| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-06 16:57:20,068 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_221 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|v_ULTIMATE.start_main_~i~0#1_75| Int) (v_ArrVal_229 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| 1) (= (select (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) 1) (+ (* |v_ULTIMATE.start_main_~i~0#1_75| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_221)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse0 (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse2 .cse3))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ c_~N~0 1)) (< |v_ULTIMATE.start_main_~i~0#1_75| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-06 16:57:22,114 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_221 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|v_ULTIMATE.start_main_~i~0#1_75| Int) (v_ArrVal_229 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| 1) (= (+ c_~N~0 1) (select (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ (* |v_ULTIMATE.start_main_~i~0#1_75| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_221)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse0 (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse2 .cse3))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_75| 1))) is different from false [2021-12-06 16:58:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-12-06 16:58:09,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048676580] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:58:09,055 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:58:09,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 22] total 60 [2021-12-06 16:58:09,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397212268] [2021-12-06 16:58:09,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:58:09,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-12-06 16:58:09,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:58:09,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-12-06 16:58:09,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=2774, Unknown=29, NotChecked=444, Total=3540 [2021-12-06 16:58:09,057 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 60 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:14,217 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_75| Int)) (or (forall ((v_ArrVal_221 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (v_ArrVal_229 Int)) (or (= (+ c_~N~0 1) (select (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_75| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_221)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse0 (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse2 .cse3))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_69| 1))) (< |v_ULTIMATE.start_main_~i~0#1_75| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 1) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1) (= (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |c_ULTIMATE.start_main_~#sum~0#1.base|) (< (+ |c_ULTIMATE.start_main_~b~0#1.base| 1) |c_ULTIMATE.start_main_~#sum~0#1.base|) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (< 1 c_~N~0) (<= c_~N~0 2))) is different from false [2021-12-06 16:58:16,470 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (+ c_~N~0 1)) (.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))))) (and (<= .cse0 c_~N~0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse1 .cse2) (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_229 Int)) (= (+ c_~N~0 1) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|))))) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= c_~N~0 .cse0) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)))) (.cse4 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= .cse3 (+ .cse4 1)) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (< (+ |ULTIMATE.start_main_~b~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= .cse3 (+ (select (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (* |c_ULTIMATE.start_main_~i~0#1| 4)) .cse4)) (= 2 .cse4) (= .cse4 (+ (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1)))))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= .cse2 .cse1) (= (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 1 c_~N~0) (<= c_~N~0 2))) is different from false [2021-12-06 16:58:18,568 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_69| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_229 Int)) (= (+ c_~N~0 1) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_69| 8)) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|))))) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) 0) 1) (< (+ |c_ULTIMATE.start_main_~a~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (< (+ |ULTIMATE.start_main_~b~0#1.base| 1) |ULTIMATE.start_main_~#sum~0#1.base|) (= 2 .cse0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ .cse0 1))))) (< 1 c_~N~0) (<= c_~N~0 2)) is different from false [2021-12-06 16:58:18,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:58:18,732 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2021-12-06 16:58:18,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-06 16:58:18,733 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-12-06 16:58:18,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:58:18,733 INFO L225 Difference]: With dead ends: 68 [2021-12-06 16:58:18,734 INFO L226 Difference]: Without dead ends: 66 [2021-12-06 16:58:18,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 74.7s TimeCoverageRelationStatistics Valid=377, Invalid=3525, Unknown=32, NotChecked=896, Total=4830 [2021-12-06 16:58:18,736 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 536 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:58:18,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 151 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 244 Invalid, 0 Unknown, 536 Unchecked, 0.1s Time] [2021-12-06 16:58:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-12-06 16:58:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2021-12-06 16:58:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 59 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2021-12-06 16:58:18,742 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 32 [2021-12-06 16:58:18,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:58:18,742 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2021-12-06 16:58:18,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2021-12-06 16:58:18,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 16:58:18,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:58:18,744 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:58:18,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-06 16:58:18,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:58:18,945 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:58:18,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:58:18,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1696042328, now seen corresponding path program 5 times [2021-12-06 16:58:18,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:58:18,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167757601] [2021-12-06 16:58:18,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:58:18,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:58:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:58:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 16:58:19,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:58:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167757601] [2021-12-06 16:58:19,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167757601] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:58:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717159932] [2021-12-06 16:58:19,037 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 16:58:19,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:58:19,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:58:19,038 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:58:19,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 16:58:19,113 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-12-06 16:58:19,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:58:19,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 16:58:19,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:58:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 16:58:19,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:58:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 16:58:19,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717159932] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:58:19,197 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:58:19,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-12-06 16:58:19,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575659542] [2021-12-06 16:58:19,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:58:19,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 16:58:19,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:58:19,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 16:58:19,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-12-06 16:58:19,198 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:19,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:58:19,298 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2021-12-06 16:58:19,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 16:58:19,298 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 16:58:19,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:58:19,299 INFO L225 Difference]: With dead ends: 148 [2021-12-06 16:58:19,299 INFO L226 Difference]: Without dead ends: 111 [2021-12-06 16:58:19,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-12-06 16:58:19,301 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 111 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:58:19,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 66 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:58:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-06 16:58:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 83. [2021-12-06 16:58:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.1219512195121952) internal successors, (92), 82 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2021-12-06 16:58:19,314 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 34 [2021-12-06 16:58:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:58:19,315 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2021-12-06 16:58:19,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2021-12-06 16:58:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 16:58:19,316 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:58:19,316 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:58:19,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-06 16:58:19,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 16:58:19,518 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:58:19,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:58:19,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1205583320, now seen corresponding path program 6 times [2021-12-06 16:58:19,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:58:19,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841077987] [2021-12-06 16:58:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:58:19,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:58:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:58:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 16:58:19,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:58:19,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841077987] [2021-12-06 16:58:19,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841077987] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:58:19,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363885072] [2021-12-06 16:58:19,611 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 16:58:19,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:58:19,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:58:19,612 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:58:19,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 16:58:19,676 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-12-06 16:58:19,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:58:19,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 16:58:19,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:58:19,753 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 16:58:19,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:58:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 16:58:19,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363885072] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:58:19,804 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:58:19,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-12-06 16:58:19,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855627220] [2021-12-06 16:58:19,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:58:19,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 16:58:19,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:58:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 16:58:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-12-06 16:58:19,805 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:19,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:58:19,957 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2021-12-06 16:58:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 16:58:19,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 16:58:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:58:19,958 INFO L225 Difference]: With dead ends: 112 [2021-12-06 16:58:19,958 INFO L226 Difference]: Without dead ends: 91 [2021-12-06 16:58:19,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2021-12-06 16:58:19,959 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 121 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:58:19,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 106 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:58:19,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-06 16:58:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 68. [2021-12-06 16:58:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0895522388059702) internal successors, (73), 67 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2021-12-06 16:58:19,965 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 34 [2021-12-06 16:58:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:58:19,965 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2021-12-06 16:58:19,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:58:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2021-12-06 16:58:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 16:58:19,966 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:58:19,966 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:58:19,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 16:58:20,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:58:20,168 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:58:20,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:58:20,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1737020496, now seen corresponding path program 1 times [2021-12-06 16:58:20,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:58:20,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417104244] [2021-12-06 16:58:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:58:20,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:58:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:58:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 16:58:20,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:58:20,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417104244] [2021-12-06 16:58:20,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417104244] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:58:20,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325623780] [2021-12-06 16:58:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:58:20,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:58:20,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:58:20,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:58:20,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 16:58:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:58:20,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 80 conjunts are in the unsatisfiable core [2021-12-06 16:58:20,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:58:20,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 16:58:20,972 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 16:58:20,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-12-06 16:58:21,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 16:58:21,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-12-06 16:58:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-12-06 16:58:21,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2021-12-06 16:58:21,637 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:58:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2021-12-06 16:58:21,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:21,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 60 [2021-12-06 16:58:22,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:22,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:58:22,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:22,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:58:22,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 70 [2021-12-06 16:58:22,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:22,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:58:22,213 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 16:58:22,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 79 treesize of output 59 [2021-12-06 16:58:23,019 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 16:58:23,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 105 treesize of output 53 [2021-12-06 16:58:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:58:23,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:59:04,997 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:04,998 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:04,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:05,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:05,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:05,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:05,016 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-12-06 16:59:05,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 178 treesize of output 1 [2021-12-06 16:59:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:59:05,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325623780] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:59:05,020 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:59:05,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 27, 25] total 69 [2021-12-06 16:59:05,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269698552] [2021-12-06 16:59:05,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:59:05,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-12-06 16:59:05,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:59:05,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-12-06 16:59:05,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=4238, Unknown=13, NotChecked=0, Total=4692 [2021-12-06 16:59:05,023 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 69 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:59:09,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:59:09,296 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2021-12-06 16:59:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-12-06 16:59:09,297 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-06 16:59:09,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:59:09,297 INFO L225 Difference]: With dead ends: 77 [2021-12-06 16:59:09,297 INFO L226 Difference]: Without dead ends: 50 [2021-12-06 16:59:09,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3031 ImplicationChecksByTransitivity, 43.5s TimeCoverageRelationStatistics Valid=1239, Invalid=9878, Unknown=13, NotChecked=0, Total=11130 [2021-12-06 16:59:09,301 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 143 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 464 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 16:59:09,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 220 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 519 Invalid, 0 Unknown, 464 Unchecked, 0.5s Time] [2021-12-06 16:59:09,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-06 16:59:09,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2021-12-06 16:59:09,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:59:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-12-06 16:59:09,305 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 36 [2021-12-06 16:59:09,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:59:09,305 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-12-06 16:59:09,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:59:09,305 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-12-06 16:59:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 16:59:09,306 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:59:09,306 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:59:09,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 16:59:09,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:59:09,508 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 16:59:09,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:59:09,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1201221586, now seen corresponding path program 7 times [2021-12-06 16:59:09,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:59:09,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944817815] [2021-12-06 16:59:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:59:09,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:59:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:59:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:59:11,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:59:11,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944817815] [2021-12-06 16:59:11,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944817815] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:59:11,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239380915] [2021-12-06 16:59:11,079 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 16:59:11,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:59:11,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:59:11,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:59:11,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 16:59:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:59:11,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 87 conjunts are in the unsatisfiable core [2021-12-06 16:59:11,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:59:11,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 16:59:11,149 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 16:59:11,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-12-06 16:59:11,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 16:59:11,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-12-06 16:59:11,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 37 treesize of output 42 [2021-12-06 16:59:11,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 49 treesize of output 57 [2021-12-06 16:59:11,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 67 [2021-12-06 16:59:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 67 [2021-12-06 16:59:11,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:11,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-12-06 16:59:11,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:11,949 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:11,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2021-12-06 16:59:12,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:12,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2021-12-06 16:59:12,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,321 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:12,321 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 16:59:12,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-12-06 16:59:12,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,549 INFO L354 Elim1Store]: treesize reduction 61, result has 38.4 percent of original size [2021-12-06 16:59:12,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 87 [2021-12-06 16:59:12,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 16:59:12,812 INFO L354 Elim1Store]: treesize reduction 123, result has 27.2 percent of original size [2021-12-06 16:59:12,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 67 treesize of output 88 [2021-12-06 16:59:13,023 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 16:59:13,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 34 [2021-12-06 16:59:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:59:13,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:59:15,264 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_520 Int)) (= (+ c_~N~0 1) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|))))) is different from false [2021-12-06 16:59:38,287 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (v_ArrVal_517 Int)) (or (= (+ c_~N~0 1) (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)))) (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-06 16:59:40,321 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (v_ArrVal_517 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)) (= (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ c_~N~0 1)))) is different from false [2021-12-06 16:59:52,467 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_155| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (= (+ c_~N~0 1) (select (store (store (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507)))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)))) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-06 16:59:54,639 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|v_ULTIMATE.start_main_~i~0#1_155| Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (= (+ c_~N~0 1) (select (store (store (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507)))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse2 .cse3 .cse4)))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)))) is different from false [2021-12-06 16:59:57,033 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_156| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|v_ULTIMATE.start_main_~i~0#1_155| Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |v_ULTIMATE.start_main_~i~0#1_156| 1)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)) (= (+ c_~N~0 1) (select (store (store (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507)))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse1 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< |v_ULTIMATE.start_main_~i~0#1_156| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-06 16:59:59,358 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|v_ULTIMATE.start_main_~i~0#1_156| Int) (|v_ULTIMATE.start_main_~i~0#1_155| Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |v_ULTIMATE.start_main_~i~0#1_156| 1)) (= (+ c_~N~0 1) (select (store (store (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507)))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)) (< |v_ULTIMATE.start_main_~i~0#1_156| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-06 17:00:01,601 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|v_ULTIMATE.start_main_~i~0#1_156| Int) (|v_ULTIMATE.start_main_~i~0#1_155| Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |v_ULTIMATE.start_main_~i~0#1_156| 1)) (= (+ c_~N~0 1) (select (store (store (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507)))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse2 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse2 .cse3 .cse4)))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)) (< |v_ULTIMATE.start_main_~i~0#1_156| 1))) is different from false [2021-12-06 17:01:03,129 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|v_ULTIMATE.start_main_~i~0#1_156| Int) (|v_ULTIMATE.start_main_~i~0#1_155| Int)) (or (and (forall ((v_ArrVal_520 Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select (store (store (let ((.cse5 (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 8) 1))))) (store .cse7 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (select .cse7 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507))))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse1 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 .cse2 .cse3 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse4)))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|))) (forall ((v_ArrVal_520 Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (<= (select (store (store (let ((.cse14 (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse17 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17 8) 1))))) (store .cse16 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (select .cse16 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507))))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse11 (select (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse10 (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse12 (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse10 .cse11 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse9 (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse10 .cse11 .cse12 .cse13))))) (store (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse10 .cse11 .cse12 (select (select .cse9 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse13)))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ 3 |c_ULTIMATE.start_main_~i~0#1|)))) (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |v_ULTIMATE.start_main_~i~0#1_156| 1)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)) (< |v_ULTIMATE.start_main_~i~0#1_156| 1))) is different from false [2021-12-06 17:01:51,812 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|v_ULTIMATE.start_main_~i~0#1_156| Int) (|v_ULTIMATE.start_main_~i~0#1_155| Int)) (or (and (forall ((v_ArrVal_520 Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select (store (store (let ((.cse5 (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 8) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 16) 1))))) (store .cse7 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (select .cse7 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507))))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse1 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 .cse2 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse3 .cse4)))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|))) (forall ((v_ArrVal_520 Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (<= (select (store (store (let ((.cse14 (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse17 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17 8) 1) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17 16) 1))))) (store .cse16 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (select .cse16 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507))))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse12 (select (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse11 (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse10 (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse9 (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse10 .cse11 .cse12 .cse13))))) (store (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse10 .cse11 (select (select .cse9 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse12 .cse13)))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ |c_ULTIMATE.start_main_~i~0#1| 4)))) (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |v_ULTIMATE.start_main_~i~0#1_156| 1)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)) (< |v_ULTIMATE.start_main_~i~0#1_156| 1))) is different from false [2021-12-06 17:01:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 19 not checked. [2021-12-06 17:01:51,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239380915] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:01:51,873 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:01:51,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 28, 30] total 74 [2021-12-06 17:01:51,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703644329] [2021-12-06 17:01:51,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:01:51,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2021-12-06 17:01:51,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:01:51,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-12-06 17:01:51,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=3642, Unknown=68, NotChecked=1330, Total=5402 [2021-12-06 17:01:51,876 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 74 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:01:54,302 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 1) (= (select .cse0 0) 1) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* c_~N~0 8) (- 8))) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_156| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (|v_ULTIMATE.start_main_~i~0#1_155| Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int) (v_ArrVal_505 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |v_ULTIMATE.start_main_~i~0#1_156| 1)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)) (= (+ c_~N~0 1) (select (store (store (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_156| 4)) v_ArrVal_505) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507)))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse4 (select (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse5 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse2 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse1 (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse4 .cse5))))) (store (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse2 .cse3 .cse4 .cse5 (select (select .cse1 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< |v_ULTIMATE.start_main_~i~0#1_156| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= (select .cse0 8) 1) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (<= 3 c_~N~0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= c_~N~0 3))) is different from false [2021-12-06 17:01:56,392 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= .cse0 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_155| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (|v_ULTIMATE.start_main_~i~0#1_148| Int) (v_ArrVal_507 Int) (v_ArrVal_517 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_148| 1) (= (+ c_~N~0 1) (select (store (store (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_155| 4)) v_ArrVal_507)))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse5 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse4 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse1 (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse4 .cse5))))) (store (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse2 .cse3 .cse4 .cse5 (select (select .cse1 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)))) (< |v_ULTIMATE.start_main_~i~0#1_155| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= 1 (select .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (= (select .cse9 0) 1) (= (select .cse9 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* c_~N~0 8) (- 8))) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse9 8) 1) (or (and (<= .cse0 c_~N~0) (= (select .cse8 0) 1) (<= c_~N~0 .cse0)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (<= 3 c_~N~0) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= c_~N~0 3))) is different from false [2021-12-06 17:01:58,662 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse1 (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))))) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse3 (= .cse1 1)) (.cse2 (+ c_~N~0 1))) (and (<= .cse0 c_~N~0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= .cse1 .cse2) (or (not .cse3) (and (= (select .cse4 0) 1) (or (<= (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset| 9) (* 8 c_~N~0)) (let ((.cse5 (+ .cse0 1))) (and (<= c_~N~0 .cse5) (<= .cse5 c_~N~0)))))) (= (select .cse4 (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 1) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* c_~N~0 8) (- 8))) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= c_~N~0 .cse0) (or .cse3 (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (= .cse1 4) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8))) (+ (select (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (* |c_ULTIMATE.start_main_~i~0#1| 4)) 3)) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |ULTIMATE.start_main_~b~0#1.base|)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (<= 3 c_~N~0) (<= .cse2 .cse1) (<= c_~N~0 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_148| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int) (v_ArrVal_520 Int) (v_ArrVal_517 Int)) (or (= (+ c_~N~0 1) (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_148| 8)) v_ArrVal_517) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |v_ULTIMATE.start_main_~i~0#1_148| 1)))) (< |v_ULTIMATE.start_main_~i~0#1_148| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))))))) is different from false [2021-12-06 17:02:00,819 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse1 (+ c_~N~0 1)) (.cse0 (select .cse2 0)) (.cse3 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (and (<= .cse0 .cse1) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) 4) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (<= .cse1 .cse0) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) 0) 1) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |ULTIMATE.start_main_~b~0#1.base|)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= (+ (div (* |c_ULTIMATE.start_main_~a~0#1.offset| (- 1)) 8) 1) |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_520 Int)) (= (+ c_~N~0 1) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|))))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (<= 3 c_~N~0) (or (= (select .cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 1) (= .cse3 8)) (or (= (select .cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* c_~N~0 8) (- 8))) 1) (= (* 8 c_~N~0) (+ .cse3 8))) (<= c_~N~0 3)))) is different from false [2021-12-06 17:02:03,010 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse1 (+ c_~N~0 1)) (.cse0 (select .cse2 0))) (and (<= .cse0 .cse1) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) 4) (<= .cse1 .cse0) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int) (|ULTIMATE.start_main_~b~0#1.base| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|) 0) 1) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (not (= |ULTIMATE.start_main_~#sum~0#1.base| |ULTIMATE.start_main_~b~0#1.base|)) (= 3 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= (+ (div (* |c_ULTIMATE.start_main_~a~0#1.offset| (- 1)) 8) 1) |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_147| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_147| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_520 Int)) (= (+ c_~N~0 1) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_147| 8)) v_ArrVal_520) |c_ULTIMATE.start_main_~a~0#1.offset|))))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (<= 3 c_~N~0) (<= c_~N~0 3)))) is different from false [2021-12-06 17:02:03,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:03,180 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2021-12-06 17:02:03,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-06 17:02:03,180 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-12-06 17:02:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:03,181 INFO L225 Difference]: With dead ends: 83 [2021-12-06 17:02:03,181 INFO L226 Difference]: Without dead ends: 81 [2021-12-06 17:02:03,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 32 SyntacticMatches, 13 SemanticMatches, 83 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 2100 ImplicationChecksByTransitivity, 157.9s TimeCoverageRelationStatistics Valid=435, Invalid=4382, Unknown=73, NotChecked=2250, Total=7140 [2021-12-06 17:02:03,183 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 724 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:03,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 224 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 403 Invalid, 0 Unknown, 724 Unchecked, 0.3s Time] [2021-12-06 17:02:03,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-06 17:02:03,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 74. [2021-12-06 17:02:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 73 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2021-12-06 17:02:03,190 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 40 [2021-12-06 17:02:03,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:03,191 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2021-12-06 17:02:03,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:03,191 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2021-12-06 17:02:03,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 17:02:03,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:03,191 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:03,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-06 17:02:03,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 17:02:03,393 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:03,395 INFO L85 PathProgramCache]: Analyzing trace with hash 524150480, now seen corresponding path program 8 times [2021-12-06 17:02:03,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:03,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133490301] [2021-12-06 17:02:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:03,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:02:03,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:03,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133490301] [2021-12-06 17:02:03,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133490301] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:02:03,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789388911] [2021-12-06 17:02:03,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:02:03,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:02:03,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:02:03,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:02:03,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 17:02:03,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:02:03,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:02:03,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 17:02:03,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:02:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:02:03,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:02:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:02:03,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789388911] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:02:03,811 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:02:03,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2021-12-06 17:02:03,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600012021] [2021-12-06 17:02:03,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:02:03,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 17:02:03,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:03,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 17:02:03,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:02:03,813 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:04,048 INFO L93 Difference]: Finished difference Result 184 states and 203 transitions. [2021-12-06 17:02:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:02:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-12-06 17:02:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:04,049 INFO L225 Difference]: With dead ends: 184 [2021-12-06 17:02:04,049 INFO L226 Difference]: Without dead ends: 141 [2021-12-06 17:02:04,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:02:04,050 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 159 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:04,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 87 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:02:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-12-06 17:02:04,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2021-12-06 17:02:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.1057692307692308) internal successors, (115), 104 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:04,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2021-12-06 17:02:04,060 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 42 [2021-12-06 17:02:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:04,060 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2021-12-06 17:02:04,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:04,060 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2021-12-06 17:02:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 17:02:04,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:04,061 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:04,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 17:02:04,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:02:04,262 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:04,263 INFO L85 PathProgramCache]: Analyzing trace with hash -308361392, now seen corresponding path program 9 times [2021-12-06 17:02:04,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:04,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130449379] [2021-12-06 17:02:04,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:04,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:02:04,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:04,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130449379] [2021-12-06 17:02:04,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130449379] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:02:04,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730848338] [2021-12-06 17:02:04,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:02:04,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:02:04,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:02:04,384 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:02:04,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 17:02:04,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-06 17:02:04,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:02:04,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 17:02:04,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:02:04,562 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:02:04,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:02:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:02:04,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730848338] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:02:04,612 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:02:04,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2021-12-06 17:02:04,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538918736] [2021-12-06 17:02:04,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:02:04,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 17:02:04,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:02:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 17:02:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:02:04,613 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:04,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:02:04,905 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2021-12-06 17:02:04,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:02:04,906 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-12-06 17:02:04,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:02:04,906 INFO L225 Difference]: With dead ends: 146 [2021-12-06 17:02:04,907 INFO L226 Difference]: Without dead ends: 117 [2021-12-06 17:02:04,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2021-12-06 17:02:04,907 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 132 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:02:04,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 165 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:02:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-06 17:02:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 86. [2021-12-06 17:02:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 85 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2021-12-06 17:02:04,915 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 42 [2021-12-06 17:02:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:02:04,915 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2021-12-06 17:02:04,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:02:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-12-06 17:02:04,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 17:02:04,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:02:04,915 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:02:04,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-06 17:02:05,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:02:05,117 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:02:05,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:02:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2112995272, now seen corresponding path program 2 times [2021-12-06 17:02:05,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:02:05,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951471405] [2021-12-06 17:02:05,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:02:05,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:02:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:02:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:02:06,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:02:06,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951471405] [2021-12-06 17:02:06,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951471405] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:02:06,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751939949] [2021-12-06 17:02:06,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:02:06,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:02:06,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:02:06,725 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:02:06,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a2b4d9-1f81-46c9-896b-d47d22a5d5bd/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 17:02:06,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:02:06,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:02:06,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 59 conjunts are in the unsatisfiable core [2021-12-06 17:02:06,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:02:06,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:06,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-12-06 17:02:06,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-06 17:02:07,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-12-06 17:02:07,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-12-06 17:02:07,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-12-06 17:02:07,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-12-06 17:02:07,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 17:02:07,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:02:07,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-12-06 17:02:07,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:02:07,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 64 [2021-12-06 17:02:07,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:02:07,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 65 [2021-12-06 17:02:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:02:08,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:02:24,163 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8)) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_218| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2021-12-06 17:02:25,293 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 8) 8) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|))) (< |v_ULTIMATE.start_main_~i~0#1_218| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) is different from false [2021-12-06 17:02:26,905 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 8)) (.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse4)))))) (store .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 8) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1))) (+ (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse4 4)) (select (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (< |v_ULTIMATE.start_main_~i~0#1_218| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) is different from false [2021-12-06 17:02:46,982 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:02:46,982 INFO L388 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 1 case distinctions, treesize of input 231 treesize of output 190 [2021-12-06 17:02:46,997 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_218| 2) (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse0 (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2))) (let ((.cse2 (store (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse2 .cse1 (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse2))) (+ (select (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 .cse1) (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2021-12-06 17:02:47,084 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_746 Int) (v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_218| 2) (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse0 (store (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_746)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2))) (let ((.cse2 (store (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse2 .cse1 (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse2))) (+ (select (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 .cse1) (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2021-12-06 17:02:47,144 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_226| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_226| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_arrayElimArr_2 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_746 Int) (v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse0 (store (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_226| 4)) v_ArrVal_746)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2))) (let ((.cse2 (store (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse2 .cse1 (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse2))) (+ (select (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 .cse1) (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< |v_ULTIMATE.start_main_~i~0#1_218| 2))))) is different from false [2021-12-06 17:02:47,205 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_226| Int) (v_arrayElimArr_2 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_746 Int) (v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_226| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse0 (store (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_226| 4)) v_ArrVal_746)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2))) (let ((.cse2 (store (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))))) (store .cse2 .cse1 (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse2))) (+ (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4)) (select (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 .cse1) (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< |v_ULTIMATE.start_main_~i~0#1_218| 2))) is different from false [2021-12-06 17:02:47,271 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_226| Int) (v_arrayElimArr_2 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_746 Int) (v_ArrVal_756 Int) (|v_ULTIMATE.start_main_~i~0#1_218| Int)) (or (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (let ((.cse0 (store (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4) 1) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_226| 4)) v_ArrVal_746)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2))) (let ((.cse2 (store (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse2 .cse1 (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse2))) (+ (select (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 4))))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_218| 8)) v_ArrVal_756))) (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse0 .cse1)))) (< |v_ULTIMATE.start_main_~i~0#1_218| 2) (< |v_ULTIMATE.start_main_~i~0#1_226| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)))) is different from false [2021-12-06 17:02:47,318 INFO L354 Elim1Store]: treesize reduction 127, result has 23.0 percent of original size [2021-12-06 17:02:47,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 627 treesize of output 233 [2021-12-06 17:02:47,345 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:02:47,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3343 treesize of output 3059 [2021-12-06 17:02:47,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:02:47,430 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:02:47,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 11514 treesize of output 9796