./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/rewnifrev.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/rewnifrev.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G --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 62ffb246c1e6cc2a3d3d5a08bb5a65a9894a173aba5be4caac9150f1d27ccfed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:48:16,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:48:16,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:48:17,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:48:17,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:48:17,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:48:17,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:48:17,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:48:17,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:48:17,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:48:17,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:48:17,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:48:17,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:48:17,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:48:17,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:48:17,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:48:17,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:48:17,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:48:17,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:48:17,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:48:17,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:48:17,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:48:17,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:48:17,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:48:17,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:48:17,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:48:17,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:48:17,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:48:17,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:48:17,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:48:17,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:48:17,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:48:17,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:48:17,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:48:17,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:48:17,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:48:17,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:48:17,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:48:17,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:48:17,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:48:17,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:48:17,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:48:17,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:48:17,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:48:17,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:48:17,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:48:17,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:48:17,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:48:17,096 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:48:17,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:48:17,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:48:17,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:48:17,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:48:17,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:48:17,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:48:17,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:48:17,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:48:17,098 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:48:17,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:48:17,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:48:17,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:48:17,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:48:17,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:48:17,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:48:17,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:48:17,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:48:17,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:48:17,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:48:17,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:48:17,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:48:17,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:48:17,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:48:17,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:48:17,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:48:17,103 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_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62ffb246c1e6cc2a3d3d5a08bb5a65a9894a173aba5be4caac9150f1d27ccfed [2021-11-23 13:48:17,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:48:17,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:48:17,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:48:17,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:48:17,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:48:17,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/array-tiling/rewnifrev.c [2021-11-23 13:48:17,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/data/52903b8d9/a8981f12922341c6b62f4be20e32810b/FLAG28f37b6fb [2021-11-23 13:48:18,060 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:48:18,063 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/sv-benchmarks/c/array-tiling/rewnifrev.c [2021-11-23 13:48:18,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/data/52903b8d9/a8981f12922341c6b62f4be20e32810b/FLAG28f37b6fb [2021-11-23 13:48:18,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/data/52903b8d9/a8981f12922341c6b62f4be20e32810b [2021-11-23 13:48:18,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:48:18,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:48:18,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:48:18,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:48:18,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:48:18,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2056507c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18, skipping insertion in model container [2021-11-23 13:48:18,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:48:18,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:48:18,612 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_660898b1-e7f5-43da-ab1f-2d0e677263c1/sv-benchmarks/c/array-tiling/rewnifrev.c[400,413] [2021-11-23 13:48:18,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:48:18,664 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:48:18,680 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_660898b1-e7f5-43da-ab1f-2d0e677263c1/sv-benchmarks/c/array-tiling/rewnifrev.c[400,413] [2021-11-23 13:48:18,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:48:18,716 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:48:18,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18 WrapperNode [2021-11-23 13:48:18,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:48:18,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:48:18,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:48:18,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:48:18,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,755 INFO L137 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-11-23 13:48:18,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:48:18,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:48:18,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:48:18,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:48:18,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:48:18,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:48:18,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:48:18,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:48:18,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (1/1) ... [2021-11-23 13:48:18,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:48:18,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:18,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:48:18,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:48:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:48:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:48:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:48:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:48:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:48:18,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:48:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:48:18,962 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:48:18,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:48:19,084 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:48:19,094 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:48:19,094 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:48:19,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:19 BoogieIcfgContainer [2021-11-23 13:48:19,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:48:19,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:48:19,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:48:19,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:48:19,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:48:18" (1/3) ... [2021-11-23 13:48:19,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f79e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:48:19, skipping insertion in model container [2021-11-23 13:48:19,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:18" (2/3) ... [2021-11-23 13:48:19,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f79e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:48:19, skipping insertion in model container [2021-11-23 13:48:19,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:19" (3/3) ... [2021-11-23 13:48:19,106 INFO L111 eAbstractionObserver]: Analyzing ICFG rewnifrev.c [2021-11-23 13:48:19,111 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:48:19,125 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:48:19,208 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:48:19,232 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:48:19,232 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:48:19,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 13:48:19,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:19,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:19,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:19,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:19,258 INFO L85 PathProgramCache]: Analyzing trace with hash 133671584, now seen corresponding path program 1 times [2021-11-23 13:48:19,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:19,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535265407] [2021-11-23 13:48:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:19,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:19,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:19,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535265407] [2021-11-23 13:48:19,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535265407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:48:19,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:48:19,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:48:19,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227846165] [2021-11-23 13:48:19,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:48:19,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:48:19,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:19,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:48:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:48:19,563 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:19,584 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-11-23 13:48:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:48:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-23 13:48:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:19,599 INFO L225 Difference]: With dead ends: 29 [2021-11-23 13:48:19,600 INFO L226 Difference]: Without dead ends: 14 [2021-11-23 13:48:19,603 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 [2021-11-23 13:48:19,611 INFO L933 BasicCegarLoop]: 21 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, 21 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 [2021-11-23 13:48:19,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:48:19,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-23 13:48:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-23 13:48:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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) [2021-11-23 13:48:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-23 13:48:19,643 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2021-11-23 13:48:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:19,644 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-23 13:48:19,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 13:48:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 13:48:19,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:19,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:19,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:48:19,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:19,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash 121665811, now seen corresponding path program 1 times [2021-11-23 13:48:19,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:19,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851286354] [2021-11-23 13:48:19,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:19,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:19,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:19,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851286354] [2021-11-23 13:48:19,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851286354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:48:19,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:48:19,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:48:19,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712613624] [2021-11-23 13:48:19,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:48:19,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:48:19,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:19,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:48:19,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:48:19,705 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:19,762 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-11-23 13:48:19,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:48:19,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-23 13:48:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:19,764 INFO L225 Difference]: With dead ends: 29 [2021-11-23 13:48:19,764 INFO L226 Difference]: Without dead ends: 18 [2021-11-23 13:48:19,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:48:19,766 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:48:19,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:48:19,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-23 13:48:19,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-11-23 13:48:19,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-23 13:48:19,772 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2021-11-23 13:48:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:19,784 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-23 13:48:19,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,786 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-23 13:48:19,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:48:19,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:19,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:19,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:48:19,795 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:19,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:19,802 INFO L85 PathProgramCache]: Analyzing trace with hash 729197006, now seen corresponding path program 1 times [2021-11-23 13:48:19,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:19,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172249738] [2021-11-23 13:48:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:19,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:19,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:19,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172249738] [2021-11-23 13:48:19,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172249738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:48:19,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:48:19,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:48:19,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004508922] [2021-11-23 13:48:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:48:19,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:48:19,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:48:19,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:48:19,907 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:19,959 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-11-23 13:48:19,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:48:19,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2021-11-23 13:48:19,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:19,960 INFO L225 Difference]: With dead ends: 32 [2021-11-23 13:48:19,960 INFO L226 Difference]: Without dead ends: 25 [2021-11-23 13:48:19,961 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 [2021-11-23 13:48:19,963 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 18 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:48:19,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:48:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-23 13:48:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2021-11-23 13:48:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-23 13:48:19,970 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2021-11-23 13:48:19,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:19,970 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-23 13:48:19,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:19,971 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-23 13:48:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:48:19,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:19,971 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:19,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:48:19,972 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:19,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:19,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1021157689, now seen corresponding path program 1 times [2021-11-23 13:48:19,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:19,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671100450] [2021-11-23 13:48:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:19,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:48:20,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671100450] [2021-11-23 13:48:20,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671100450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:48:20,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:48:20,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 13:48:20,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97596224] [2021-11-23 13:48:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:48:20,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:48:20,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:48:20,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:48:20,302 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2021-11-23 13:48:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:20,409 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-11-23 13:48:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:48:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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 [2021-11-23 13:48:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:20,411 INFO L225 Difference]: With dead ends: 27 [2021-11-23 13:48:20,411 INFO L226 Difference]: Without dead ends: 25 [2021-11-23 13:48:20,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:48:20,414 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 21 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:48:20,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:48:20,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-23 13:48:20,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-11-23 13:48:20,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:20,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-11-23 13:48:20,420 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2021-11-23 13:48:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:20,421 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-23 13:48:20,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2021-11-23 13:48:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-11-23 13:48:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 13:48:20,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:20,422 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:20,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:48:20,423 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:20,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1566850755, now seen corresponding path program 1 times [2021-11-23 13:48:20,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233300690] [2021-11-23 13:48:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:20,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:20,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:20,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233300690] [2021-11-23 13:48:20,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233300690] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:48:20,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72782317] [2021-11-23 13:48:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:20,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:20,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:20,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:48:20,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:48:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:20,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 13:48:20,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:48:20,817 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 15 treesize of output 11 [2021-11-23 13:48:21,108 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-23 13:48:21,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 13:48:21,320 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-23 13:48:21,321 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 44 treesize of output 28 [2021-11-23 13:48:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:21,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:48:22,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-23 13:48:22,329 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 194 treesize of output 186 [2021-11-23 13:48:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:22,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72782317] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:48:22,437 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:48:22,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2021-11-23 13:48:22,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655679090] [2021-11-23 13:48:22,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:48:22,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 13:48:22,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:22,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 13:48:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=346, Unknown=1, NotChecked=0, Total=462 [2021-11-23 13:48:22,448 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 22 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) [2021-11-23 13:48:22,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:22,946 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2021-11-23 13:48:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-23 13:48:22,947 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 22 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) Word has length 20 [2021-11-23 13:48:22,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:22,948 INFO L225 Difference]: With dead ends: 51 [2021-11-23 13:48:22,948 INFO L226 Difference]: Without dead ends: 49 [2021-11-23 13:48:22,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=318, Invalid=1013, Unknown=1, NotChecked=0, Total=1332 [2021-11-23 13:48:22,951 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 117 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:48:22,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 58 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 148 Invalid, 0 Unknown, 52 Unchecked, 0.2s Time] [2021-11-23 13:48:22,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-23 13:48:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 25. [2021-11-23 13:48:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 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) [2021-11-23 13:48:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-11-23 13:48:22,958 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 20 [2021-11-23 13:48:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:22,959 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-11-23 13:48:22,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 22 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) [2021-11-23 13:48:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-11-23 13:48:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 13:48:22,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:22,960 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:22,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:48:23,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:23,173 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:23,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:23,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1995245389, now seen corresponding path program 2 times [2021-11-23 13:48:23,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:23,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910152794] [2021-11-23 13:48:23,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:23,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:23,289 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:23,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:23,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910152794] [2021-11-23 13:48:23,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910152794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:48:23,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602873592] [2021-11-23 13:48:23,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:48:23,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:23,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:23,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:48:23,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:48:23,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:48:23,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:48:23,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 13:48:23,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:48:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:23,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:48:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:23,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602873592] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:48:23,587 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:48:23,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 12 [2021-11-23 13:48:23,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246934568] [2021-11-23 13:48:23,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:48:23,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:48:23,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:23,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:48:23,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:48:23,590 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:23,676 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2021-11-23 13:48:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:48:23,678 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 [2021-11-23 13:48:23,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:23,679 INFO L225 Difference]: With dead ends: 56 [2021-11-23 13:48:23,679 INFO L226 Difference]: Without dead ends: 31 [2021-11-23 13:48:23,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=91, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:48:23,683 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:48:23,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 38 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:48:23,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-23 13:48:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-11-23 13:48:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:23,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-11-23 13:48:23,696 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 24 [2021-11-23 13:48:23,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:23,696 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-11-23 13:48:23,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-11-23 13:48:23,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 13:48:23,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:23,699 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:23,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:48:23,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 13:48:23,921 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:23,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:23,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1191072622, now seen corresponding path program 3 times [2021-11-23 13:48:23,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:23,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604897945] [2021-11-23 13:48:23,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:23,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:24,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:24,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604897945] [2021-11-23 13:48:24,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604897945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:48:24,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092879162] [2021-11-23 13:48:24,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:48:24,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:24,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:24,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:48:24,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:48:24,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-23 13:48:24,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:48:24,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 13:48:24,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:48:24,577 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 15 treesize of output 11 [2021-11-23 13:48:24,669 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:48:24,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:48:24,737 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:48:24,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:48:24,979 INFO L354 Elim1Store]: treesize reduction 130, result has 16.1 percent of original size [2021-11-23 13:48:24,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 57 [2021-11-23 13:48:25,538 INFO L354 Elim1Store]: treesize reduction 82, result has 3.5 percent of original size [2021-11-23 13:48:25,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 48 [2021-11-23 13:48:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:25,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:48:25,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 13:48:25,921 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 92 treesize of output 88 [2021-11-23 13:48:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:25,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092879162] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:48:25,935 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:48:25,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 12] total 34 [2021-11-23 13:48:25,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737997420] [2021-11-23 13:48:25,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:48:25,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 13:48:25,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:25,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 13:48:25,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 13:48:25,938 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:26,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:26,436 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2021-11-23 13:48:26,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 13:48:26,437 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 28 [2021-11-23 13:48:26,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:26,438 INFO L225 Difference]: With dead ends: 40 [2021-11-23 13:48:26,438 INFO L226 Difference]: Without dead ends: 38 [2021-11-23 13:48:26,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=481, Invalid=1499, Unknown=0, NotChecked=0, Total=1980 [2021-11-23 13:48:26,440 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:48:26,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 60 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 140 Invalid, 0 Unknown, 38 Unchecked, 0.1s Time] [2021-11-23 13:48:26,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-23 13:48:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2021-11-23 13:48:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:26,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-11-23 13:48:26,446 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 28 [2021-11-23 13:48:26,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:26,446 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-11-23 13:48:26,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:26,447 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-11-23 13:48:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 13:48:26,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:26,447 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:26,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:48:26,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 13:48:26,648 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:26,649 INFO L85 PathProgramCache]: Analyzing trace with hash 948898404, now seen corresponding path program 4 times [2021-11-23 13:48:26,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:26,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230539642] [2021-11-23 13:48:26,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:26,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:26,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:26,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230539642] [2021-11-23 13:48:26,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230539642] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:48:26,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222495551] [2021-11-23 13:48:26,739 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 13:48:26,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:26,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:26,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:48:26,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:48:26,795 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 13:48:26,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:48:26,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 13:48:26,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:48:26,935 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:26,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:48:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:27,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222495551] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:48:27,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:48:27,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 15 [2021-11-23 13:48:27,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585840878] [2021-11-23 13:48:27,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:48:27,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 13:48:27,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:48:27,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 13:48:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=124, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:48:27,077 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:27,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:48:27,199 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2021-11-23 13:48:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:48:27,199 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-23 13:48:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:48:27,202 INFO L225 Difference]: With dead ends: 68 [2021-11-23 13:48:27,202 INFO L226 Difference]: Without dead ends: 39 [2021-11-23 13:48:27,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=142, Unknown=0, NotChecked=0, Total=240 [2021-11-23 13:48:27,204 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:48:27,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 40 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:48:27,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-23 13:48:27,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2021-11-23 13:48:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 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) [2021-11-23 13:48:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-11-23 13:48:27,217 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 32 [2021-11-23 13:48:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:48:27,219 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-11-23 13:48:27,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:48:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-11-23 13:48:27,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 13:48:27,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:48:27,223 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:48:27,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:48:27,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:27,445 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:48:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:48:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash 947747359, now seen corresponding path program 5 times [2021-11-23 13:48:27,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:48:27,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313828170] [2021-11-23 13:48:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:48:27,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:48:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:48:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 17 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:27,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:48:27,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313828170] [2021-11-23 13:48:27,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313828170] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:48:27,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031291156] [2021-11-23 13:48:27,904 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 13:48:27,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:48:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:27,905 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:48:27,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:48:27,959 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-11-23 13:48:27,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:48:27,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 13:48:27,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:48:28,009 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 15 treesize of output 11 [2021-11-23 13:48:28,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:48:28,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,155 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:48:28,156 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 1 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:48:28,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,310 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:48:28,310 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 3 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:48:28,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:48:28,409 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:48:28,410 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 6 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:48:28,765 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:48:28,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 82 treesize of output 79 [2021-11-23 13:48:29,724 INFO L354 Elim1Store]: treesize reduction 142, result has 2.1 percent of original size [2021-11-23 13:48:29,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 57 [2021-11-23 13:48:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:48:29,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:48:47,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 78 [2021-11-23 13:48:47,066 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 17952 treesize of output 17896 [2021-11-23 13:50:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:50:18,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031291156] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:50:18,914 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:50:18,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 19] total 49 [2021-11-23 13:50:18,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479895299] [2021-11-23 13:50:18,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:50:18,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-23 13:50:18,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:18,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-23 13:50:18,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=1833, Unknown=18, NotChecked=0, Total=2352 [2021-11-23 13:50:18,917 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 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) [2021-11-23 13:51:11,665 WARN L227 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 81 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:51:39,266 WARN L227 SmtUtils]: Spent 25.03s on a formula simplification. DAG size of input: 84 DAG size of output: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:52:30,492 WARN L227 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:53:04,152 WARN L227 SmtUtils]: Spent 7.38s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:53:23,278 WARN L227 SmtUtils]: Spent 19.03s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:54:49,524 WARN L227 SmtUtils]: Spent 10.64s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:55:39,054 WARN L227 SmtUtils]: Spent 27.24s on a formula simplification. DAG size of input: 71 DAG size of output: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:55:39,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:55:39,059 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2021-11-23 13:55:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-23 13:55:39,060 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 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 36 [2021-11-23 13:55:39,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:55:39,063 INFO L225 Difference]: With dead ends: 108 [2021-11-23 13:55:39,063 INFO L226 Difference]: Without dead ends: 88 [2021-11-23 13:55:39,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 47 SyntacticMatches, 9 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3617 ImplicationChecksByTransitivity, 337.8s TimeCoverageRelationStatistics Valid=2575, Invalid=8382, Unknown=173, NotChecked=0, Total=11130 [2021-11-23 13:55:39,071 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 163 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 448 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:55:39,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 119 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 168 Invalid, 0 Unknown, 448 Unchecked, 0.2s Time] [2021-11-23 13:55:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-23 13:55:39,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 45. [2021-11-23 13:55:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 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) [2021-11-23 13:55:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-11-23 13:55:39,083 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 36 [2021-11-23 13:55:39,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:55:39,083 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-11-23 13:55:39,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 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) [2021-11-23 13:55:39,084 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-11-23 13:55:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 13:55:39,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:55:39,085 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:55:39,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:55:39,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:39,313 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:55:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:55:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1613367984, now seen corresponding path program 6 times [2021-11-23 13:55:39,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:55:39,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470789268] [2021-11-23 13:55:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:55:39,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:55:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:55:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 13 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:39,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:55:39,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470789268] [2021-11-23 13:55:39,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470789268] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:55:39,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982465221] [2021-11-23 13:55:39,703 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 13:55:39,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:39,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:55:39,704 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:55:39,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:55:39,773 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-11-23 13:55:39,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:55:39,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 13:55:39,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:55:39,812 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 15 treesize of output 11 [2021-11-23 13:55:39,879 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:55:39,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:55:39,944 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:55:39,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:55:40,089 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:55:40,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:55:40,187 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:55:40,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:55:40,354 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:55:40,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:55:40,470 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:55:40,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:55:40,810 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:55:40,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 91 treesize of output 91 [2021-11-23 13:55:41,943 INFO L354 Elim1Store]: treesize reduction 208, result has 1.4 percent of original size [2021-11-23 13:55:41,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 54 [2021-11-23 13:55:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 34 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:41,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:55:42,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 13:55:42,794 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 198 treesize of output 190 [2021-11-23 13:55:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 24 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:42,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982465221] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:55:42,847 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:55:42,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 23, 16] total 41 [2021-11-23 13:55:42,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100399811] [2021-11-23 13:55:42,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:55:42,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-23 13:55:42,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:55:42,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-23 13:55:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=1297, Unknown=0, NotChecked=0, Total=1640 [2021-11-23 13:55:42,854 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 41 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 41 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:55:45,480 INFO L93 Difference]: Finished difference Result 120 states and 136 transitions. [2021-11-23 13:55:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-23 13:55:45,480 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 41 states have internal predecessors, (107), 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 44 [2021-11-23 13:55:45,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:55:45,481 INFO L225 Difference]: With dead ends: 120 [2021-11-23 13:55:45,482 INFO L226 Difference]: Without dead ends: 118 [2021-11-23 13:55:45,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 56 SyntacticMatches, 20 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3257 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1839, Invalid=7667, Unknown=0, NotChecked=0, Total=9506 [2021-11-23 13:55:45,487 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 65 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 129 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:55:45,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 122 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 337 Invalid, 0 Unknown, 129 Unchecked, 0.4s Time] [2021-11-23 13:55:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-23 13:55:45,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 49. [2021-11-23 13:55:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2021-11-23 13:55:45,498 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 44 [2021-11-23 13:55:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:55:45,499 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2021-11-23 13:55:45,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 41 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2021-11-23 13:55:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 13:55:45,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:55:45,501 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:55:45,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:55:45,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 13:55:45,705 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:55:45,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:55:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash 924773190, now seen corresponding path program 7 times [2021-11-23 13:55:45,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:55:45,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473508973] [2021-11-23 13:55:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:55:45,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:55:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:55:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 33 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:45,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:55:45,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473508973] [2021-11-23 13:55:45,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473508973] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:55:45,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973748539] [2021-11-23 13:55:45,811 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 13:55:45,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:45,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:55:45,813 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:55:45,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:55:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:55:45,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 13:55:45,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:55:46,166 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 50 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:46,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:55:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 63 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:46,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973748539] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:55:46,413 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:55:46,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 21 [2021-11-23 13:55:46,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062101503] [2021-11-23 13:55:46,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:55:46,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-23 13:55:46,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:55:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 13:55:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=251, Unknown=0, NotChecked=0, Total=420 [2021-11-23 13:55:46,415 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:55:46,582 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2021-11-23 13:55:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 13:55:46,583 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-23 13:55:46,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:55:46,584 INFO L225 Difference]: With dead ends: 95 [2021-11-23 13:55:46,584 INFO L226 Difference]: Without dead ends: 55 [2021-11-23 13:55:46,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=305, Unknown=0, NotChecked=0, Total=506 [2021-11-23 13:55:46,586 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 56 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:55:46,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 57 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:55:46,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-23 13:55:46,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-11-23 13:55:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-11-23 13:55:46,597 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 48 [2021-11-23 13:55:46,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:55:46,598 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-11-23 13:55:46,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:46,598 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-11-23 13:55:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 13:55:46,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:55:46,600 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:55:46,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:55:46,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:46,813 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:55:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:55:46,814 INFO L85 PathProgramCache]: Analyzing trace with hash 778339585, now seen corresponding path program 8 times [2021-11-23 13:55:46,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:55:46,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687558624] [2021-11-23 13:55:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:55:46,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:55:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:55:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:47,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:55:47,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687558624] [2021-11-23 13:55:47,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687558624] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:55:47,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533785013] [2021-11-23 13:55:47,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:55:47,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:47,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:55:47,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:55:47,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:55:47,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:55:47,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:55:47,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 13:55:47,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:55:47,415 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 15 treesize of output 11 [2021-11-23 13:55:47,495 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:55:47,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:55:47,562 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:55:47,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:55:47,720 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:55:47,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:55:47,819 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:55:47,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:55:48,019 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:55:48,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:55:48,145 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:55:48,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:55:48,355 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 13:55:48,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 13:55:48,520 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:55:48,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 13:55:49,056 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:55:49,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 105 treesize of output 108 [2021-11-23 13:55:50,811 INFO L354 Elim1Store]: treesize reduction 310, result has 1.0 percent of original size [2021-11-23 13:55:50,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 112 treesize of output 63 [2021-11-23 13:55:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 52 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:50,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:55:51,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 13:55:51,819 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 198 treesize of output 190 [2021-11-23 13:55:51,879 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 30 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:51,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533785013] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:55:51,879 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:55:51,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 27, 18] total 47 [2021-11-23 13:55:51,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132216991] [2021-11-23 13:55:51,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:55:51,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-23 13:55:51,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:55:51,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-23 13:55:51,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=442, Invalid=1720, Unknown=0, NotChecked=0, Total=2162 [2021-11-23 13:55:51,886 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 47 states, 47 states have (on average 2.702127659574468) internal successors, (127), 47 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:55:54,074 INFO L93 Difference]: Finished difference Result 110 states and 121 transitions. [2021-11-23 13:55:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-23 13:55:54,074 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.702127659574468) internal successors, (127), 47 states have internal predecessors, (127), 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 52 [2021-11-23 13:55:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:55:54,075 INFO L225 Difference]: With dead ends: 110 [2021-11-23 13:55:54,075 INFO L226 Difference]: Without dead ends: 108 [2021-11-23 13:55:54,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 65 SyntacticMatches, 25 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2772 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1471, Invalid=6011, Unknown=0, NotChecked=0, Total=7482 [2021-11-23 13:55:54,078 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 44 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:55:54,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 164 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 85 Unchecked, 0.3s Time] [2021-11-23 13:55:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-23 13:55:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 57. [2021-11-23 13:55:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 56 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2021-11-23 13:55:54,090 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 52 [2021-11-23 13:55:54,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:55:54,090 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2021-11-23 13:55:54,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.702127659574468) internal successors, (127), 47 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:54,091 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2021-11-23 13:55:54,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 13:55:54,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:55:54,092 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:55:54,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:55:54,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 13:55:54,305 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:55:54,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:55:54,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1215546761, now seen corresponding path program 9 times [2021-11-23 13:55:54,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:55:54,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135922334] [2021-11-23 13:55:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:55:54,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:55:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:55:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 51 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:54,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:55:54,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135922334] [2021-11-23 13:55:54,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135922334] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:55:54,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034700542] [2021-11-23 13:55:54,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:55:54,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:54,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:55:54,424 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:55:54,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:55:54,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-23 13:55:54,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:55:54,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 13:55:54,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:55:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 72 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:54,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:55:55,083 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 88 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:55,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034700542] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:55:55,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:55:55,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 24 [2021-11-23 13:55:55,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735436235] [2021-11-23 13:55:55,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:55:55,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 13:55:55,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:55:55,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 13:55:55,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=331, Unknown=0, NotChecked=0, Total=552 [2021-11-23 13:55:55,086 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:55,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:55:55,259 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2021-11-23 13:55:55,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 13:55:55,269 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 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 56 [2021-11-23 13:55:55,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:55:55,271 INFO L225 Difference]: With dead ends: 104 [2021-11-23 13:55:55,271 INFO L226 Difference]: Without dead ends: 63 [2021-11-23 13:55:55,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=361, Unknown=0, NotChecked=0, Total=600 [2021-11-23 13:55:55,273 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 55 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:55:55,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 76 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:55:55,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-23 13:55:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2021-11-23 13:55:55,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.05) internal successors, (63), 60 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2021-11-23 13:55:55,297 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 56 [2021-11-23 13:55:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:55:55,298 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2021-11-23 13:55:55,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2021-11-23 13:55:55,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 13:55:55,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:55:55,303 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:55:55,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:55:55,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 13:55:55,503 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:55:55,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:55:55,504 INFO L85 PathProgramCache]: Analyzing trace with hash -836376270, now seen corresponding path program 10 times [2021-11-23 13:55:55,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:55:55,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165796020] [2021-11-23 13:55:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:55:55,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:55:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:55:56,505 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 29 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:55:56,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:55:56,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165796020] [2021-11-23 13:55:56,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165796020] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:55:56,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477967304] [2021-11-23 13:55:56,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 13:55:56,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:56,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:55:56,509 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:55:56,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:55:56,575 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 13:55:56,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:55:56,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-23 13:55:56,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:55:56,599 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 15 treesize of output 11 [2021-11-23 13:55:56,666 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:55:56,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:55:56,748 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:55:56,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:55:56,927 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:55:56,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:55:57,017 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:55:57,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:55:57,216 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:55:57,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:55:57,381 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:55:57,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:55:57,682 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 13:55:57,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 13:55:57,867 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:55:57,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 13:55:58,199 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-23 13:55:58,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-23 13:55:58,419 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 13:55:58,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-23 13:55:59,045 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 13:55:59,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 119 treesize of output 125 [2021-11-23 13:56:01,269 INFO L354 Elim1Store]: treesize reduction 404, result has 0.7 percent of original size [2021-11-23 13:56:01,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 119 treesize of output 64 [2021-11-23 13:56:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 74 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:01,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:56:02,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 13:56:02,578 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 92 treesize of output 88 [2021-11-23 13:56:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 36 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:02,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477967304] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:56:02,591 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:56:02,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 31, 20] total 64 [2021-11-23 13:56:02,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438799670] [2021-11-23 13:56:02,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:56:02,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-23 13:56:02,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:56:02,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-23 13:56:02,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=815, Invalid=3217, Unknown=0, NotChecked=0, Total=4032 [2021-11-23 13:56:02,596 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 64 states, 64 states have (on average 2.640625) internal successors, (169), 64 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:11,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:56:11,028 INFO L93 Difference]: Finished difference Result 251 states and 289 transitions. [2021-11-23 13:56:11,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2021-11-23 13:56:11,028 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.640625) internal successors, (169), 64 states have internal predecessors, (169), 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 60 [2021-11-23 13:56:11,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:56:11,030 INFO L225 Difference]: With dead ends: 251 [2021-11-23 13:56:11,030 INFO L226 Difference]: Without dead ends: 249 [2021-11-23 13:56:11,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 90 SyntacticMatches, 22 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11511 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=5636, Invalid=25164, Unknown=0, NotChecked=0, Total=30800 [2021-11-23 13:56:11,038 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 172 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 103 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:56:11,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 286 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1144 Invalid, 0 Unknown, 103 Unchecked, 1.5s Time] [2021-11-23 13:56:11,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-23 13:56:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 65. [2021-11-23 13:56:11,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2021-11-23 13:56:11,060 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 60 [2021-11-23 13:56:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:56:11,061 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2021-11-23 13:56:11,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.640625) internal successors, (169), 64 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2021-11-23 13:56:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 13:56:11,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:56:11,062 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:56:11,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:56:11,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-23 13:56:11,273 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:56:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:56:11,274 INFO L85 PathProgramCache]: Analyzing trace with hash 313400872, now seen corresponding path program 11 times [2021-11-23 13:56:11,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:56:11,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314619470] [2021-11-23 13:56:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:56:11,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:56:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:56:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 73 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:11,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:56:11,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314619470] [2021-11-23 13:56:11,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314619470] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:56:11,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087691195] [2021-11-23 13:56:11,403 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 13:56:11,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:11,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:56:11,404 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:56:11,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 13:56:11,591 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-11-23 13:56:11,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:56:11,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 13:56:11,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:56:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 98 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:11,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:56:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 117 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:12,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087691195] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:56:12,126 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:56:12,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 18] total 27 [2021-11-23 13:56:12,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419614747] [2021-11-23 13:56:12,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:56:12,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 13:56:12,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:56:12,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 13:56:12,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=422, Unknown=0, NotChecked=0, Total=702 [2021-11-23 13:56:12,128 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand has 27 states, 27 states have (on average 4.666666666666667) internal successors, (126), 27 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:12,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:56:12,269 INFO L93 Difference]: Finished difference Result 116 states and 121 transitions. [2021-11-23 13:56:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-23 13:56:12,270 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.666666666666667) internal successors, (126), 27 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-23 13:56:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:56:12,270 INFO L225 Difference]: With dead ends: 116 [2021-11-23 13:56:12,270 INFO L226 Difference]: Without dead ends: 71 [2021-11-23 13:56:12,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=456, Unknown=0, NotChecked=0, Total=756 [2021-11-23 13:56:12,272 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 53 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:56:12,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 68 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:56:12,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-23 13:56:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-11-23 13:56:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0441176470588236) internal successors, (71), 68 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:12,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2021-11-23 13:56:12,289 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 64 [2021-11-23 13:56:12,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:56:12,289 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2021-11-23 13:56:12,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.666666666666667) internal successors, (126), 27 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2021-11-23 13:56:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 13:56:12,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:56:12,291 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:56:12,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:56:12,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 13:56:12,517 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:56:12,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:56:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1370939875, now seen corresponding path program 12 times [2021-11-23 13:56:12,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:56:12,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070267999] [2021-11-23 13:56:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:56:12,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:56:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:56:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 22 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:13,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:56:13,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070267999] [2021-11-23 13:56:13,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070267999] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:56:13,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923297220] [2021-11-23 13:56:13,061 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 13:56:13,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:13,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:56:13,062 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:56:13,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 13:56:13,283 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-11-23 13:56:13,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:56:13,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 13:56:13,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:56:13,322 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 15 treesize of output 11 [2021-11-23 13:56:13,383 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:56:13,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:56:13,435 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:56:13,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:56:13,564 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:56:13,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:56:13,659 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:56:13,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:56:13,825 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:56:13,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:56:13,941 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:56:13,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:56:14,155 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 13:56:14,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 13:56:14,308 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:56:14,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 13:56:14,554 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-23 13:56:14,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-23 13:56:14,768 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 13:56:14,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-23 13:56:15,082 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-23 13:56:15,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-23 13:56:15,318 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-23 13:56:15,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-23 13:56:15,920 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-23 13:56:15,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 133 treesize of output 142 [2021-11-23 13:56:18,301 INFO L354 Elim1Store]: treesize reduction 526, result has 0.6 percent of original size [2021-11-23 13:56:18,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 132 treesize of output 69 [2021-11-23 13:56:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 100 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:18,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:56:19,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 13:56:19,564 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 92 treesize of output 88 [2021-11-23 13:56:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 42 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:19,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923297220] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:56:19,594 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:56:19,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 35, 22] total 59 [2021-11-23 13:56:19,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673837144] [2021-11-23 13:56:19,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:56:19,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-23 13:56:19,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:56:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-23 13:56:19,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=2743, Unknown=0, NotChecked=0, Total=3422 [2021-11-23 13:56:19,597 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand has 59 states, 59 states have (on average 2.830508474576271) internal successors, (167), 59 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:56:30,936 INFO L93 Difference]: Finished difference Result 238 states and 277 transitions. [2021-11-23 13:56:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-11-23 13:56:30,938 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.830508474576271) internal successors, (167), 59 states have internal predecessors, (167), 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 68 [2021-11-23 13:56:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:56:30,940 INFO L225 Difference]: With dead ends: 238 [2021-11-23 13:56:30,940 INFO L226 Difference]: Without dead ends: 236 [2021-11-23 13:56:30,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 98 SyntacticMatches, 40 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14910 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=5846, Invalid=30064, Unknown=0, NotChecked=0, Total=35910 [2021-11-23 13:56:30,946 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 127 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 278 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:56:30,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 269 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 712 Invalid, 0 Unknown, 278 Unchecked, 1.1s Time] [2021-11-23 13:56:30,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-11-23 13:56:30,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 73. [2021-11-23 13:56:30,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0416666666666667) internal successors, (75), 72 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:30,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2021-11-23 13:56:30,966 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 68 [2021-11-23 13:56:30,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:56:30,967 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2021-11-23 13:56:30,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.830508474576271) internal successors, (167), 59 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:30,967 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2021-11-23 13:56:30,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 13:56:30,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:56:30,969 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:56:31,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:56:31,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:31,197 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:56:31,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:56:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash -20883879, now seen corresponding path program 13 times [2021-11-23 13:56:31,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:56:31,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525452080] [2021-11-23 13:56:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:56:31,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:56:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:56:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 99 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:31,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:56:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525452080] [2021-11-23 13:56:31,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525452080] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:56:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990218310] [2021-11-23 13:56:31,366 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 13:56:31,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:56:31,367 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:56:31,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 13:56:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:56:31,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 13:56:31,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:56:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 128 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:31,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:56:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 150 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:32,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990218310] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:56:32,128 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:56:32,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 20, 20] total 30 [2021-11-23 13:56:32,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26691139] [2021-11-23 13:56:32,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:56:32,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-23 13:56:32,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:56:32,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-23 13:56:32,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=524, Unknown=0, NotChecked=0, Total=870 [2021-11-23 13:56:32,130 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 30 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:32,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:56:32,297 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-11-23 13:56:32,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-23 13:56:32,297 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 30 states have internal predecessors, (142), 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 72 [2021-11-23 13:56:32,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:56:32,298 INFO L225 Difference]: With dead ends: 128 [2021-11-23 13:56:32,298 INFO L226 Difference]: Without dead ends: 79 [2021-11-23 13:56:32,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=368, Invalid=562, Unknown=0, NotChecked=0, Total=930 [2021-11-23 13:56:32,301 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 80 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:56:32,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 94 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:56:32,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-23 13:56:32,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2021-11-23 13:56:32,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.0394736842105263) internal successors, (79), 76 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2021-11-23 13:56:32,320 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 72 [2021-11-23 13:56:32,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:56:32,320 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2021-11-23 13:56:32,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 30 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2021-11-23 13:56:32,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 13:56:32,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:56:32,322 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:56:32,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:56:32,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 13:56:32,529 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:56:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:56:32,530 INFO L85 PathProgramCache]: Analyzing trace with hash 609496852, now seen corresponding path program 14 times [2021-11-23 13:56:32,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:56:32,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144161747] [2021-11-23 13:56:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:56:32,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:56:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:56:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 25 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:33,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:56:33,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144161747] [2021-11-23 13:56:33,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144161747] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:56:33,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790926676] [2021-11-23 13:56:33,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:56:33,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:33,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:56:33,308 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:56:33,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-23 13:56:33,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:56:33,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:56:33,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-23 13:56:33,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:56:33,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-23 13:56:33,466 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:56:33,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:56:33,515 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:56:33,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:56:33,647 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:56:33,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:56:33,774 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:56:33,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:56:34,026 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:56:34,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:56:34,163 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:56:34,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:56:34,381 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 13:56:34,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 13:56:34,591 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:56:34,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 13:56:34,962 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-23 13:56:34,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-23 13:56:35,229 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 13:56:35,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-23 13:56:35,650 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-23 13:56:35,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-23 13:56:35,912 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-23 13:56:35,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-23 13:56:36,461 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-23 13:56:36,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-23 13:56:36,767 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-23 13:56:36,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-23 13:56:37,522 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-23 13:56:37,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 147 treesize of output 159 [2021-11-23 13:56:40,859 INFO L354 Elim1Store]: treesize reduction 664, result has 0.4 percent of original size [2021-11-23 13:56:40,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 74 [2021-11-23 13:56:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 130 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:40,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:56:42,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 13:56:42,466 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 92 treesize of output 88 [2021-11-23 13:56:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 48 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:42,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790926676] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:56:42,480 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:56:42,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 39, 24] total 65 [2021-11-23 13:56:42,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195269689] [2021-11-23 13:56:42,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:56:42,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-23 13:56:42,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:56:42,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-23 13:56:42,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=817, Invalid=3343, Unknown=0, NotChecked=0, Total=4160 [2021-11-23 13:56:42,482 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand has 65 states, 65 states have (on average 2.876923076923077) internal successors, (187), 65 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:56:49,854 INFO L93 Difference]: Finished difference Result 160 states and 172 transitions. [2021-11-23 13:56:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-23 13:56:49,854 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.876923076923077) internal successors, (187), 65 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-23 13:56:49,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:56:49,856 INFO L225 Difference]: With dead ends: 160 [2021-11-23 13:56:49,856 INFO L226 Difference]: Without dead ends: 158 [2021-11-23 13:56:49,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 89 SyntacticMatches, 44 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6074 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2941, Invalid=12809, Unknown=0, NotChecked=0, Total=15750 [2021-11-23 13:56:49,859 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 100 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:56:49,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 308 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 802 Invalid, 0 Unknown, 123 Unchecked, 1.2s Time] [2021-11-23 13:56:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-23 13:56:49,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 81. [2021-11-23 13:56:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0375) internal successors, (83), 80 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) [2021-11-23 13:56:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions. [2021-11-23 13:56:49,881 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 76 [2021-11-23 13:56:49,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:56:49,882 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions. [2021-11-23 13:56:49,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.876923076923077) internal successors, (187), 65 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2021-11-23 13:56:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 13:56:49,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:56:49,884 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:56:49,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:56:50,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-23 13:56:50,103 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:56:50,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:56:50,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2057478922, now seen corresponding path program 15 times [2021-11-23 13:56:50,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:56:50,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283955449] [2021-11-23 13:56:50,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:56:50,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:56:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:56:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 129 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:50,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:56:50,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283955449] [2021-11-23 13:56:50,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283955449] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:56:50,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880276380] [2021-11-23 13:56:50,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:56:50,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:50,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:56:50,277 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:56:50,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-23 13:56:50,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-23 13:56:50,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:56:50,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 13:56:50,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:56:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 162 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:51,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:56:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 187 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:51,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880276380] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:56:51,398 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:56:51,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22, 22] total 33 [2021-11-23 13:56:51,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841074234] [2021-11-23 13:56:51,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:56:51,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-23 13:56:51,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:56:51,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-23 13:56:51,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=637, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 13:56:51,400 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 33 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:51,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:56:51,647 INFO L93 Difference]: Finished difference Result 140 states and 145 transitions. [2021-11-23 13:56:51,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-23 13:56:51,648 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 33 states have internal predecessors, (158), 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 80 [2021-11-23 13:56:51,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:56:51,649 INFO L225 Difference]: With dead ends: 140 [2021-11-23 13:56:51,649 INFO L226 Difference]: Without dead ends: 87 [2021-11-23 13:56:51,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=443, Invalid=679, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 13:56:51,650 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 35 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:56:51,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 168 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:56:51,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-23 13:56:51,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2021-11-23 13:56:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.0357142857142858) internal successors, (87), 84 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2021-11-23 13:56:51,668 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 80 [2021-11-23 13:56:51,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:56:51,668 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2021-11-23 13:56:51,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 33 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:56:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2021-11-23 13:56:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 13:56:51,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:56:51,669 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:56:51,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:56:51,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:51,870 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:56:51,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:56:51,871 INFO L85 PathProgramCache]: Analyzing trace with hash -103116603, now seen corresponding path program 16 times [2021-11-23 13:56:51,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:56:51,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653794941] [2021-11-23 13:56:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:56:51,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:56:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:56:52,791 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 28 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:56:52,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:56:52,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653794941] [2021-11-23 13:56:52,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653794941] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:56:52,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392929294] [2021-11-23 13:56:52,792 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 13:56:52,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:56:52,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:56:52,797 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:56:52,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-23 13:56:52,882 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 13:56:52,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:56:52,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-23 13:56:52,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:56:52,928 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 15 treesize of output 11 [2021-11-23 13:56:53,025 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:56:53,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:56:53,110 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:56:53,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:56:53,261 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:56:53,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:56:53,359 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:56:53,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:56:53,541 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:56:53,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:56:53,671 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:56:53,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:56:53,918 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 13:56:53,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 13:56:54,119 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:56:54,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 13:56:54,510 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-23 13:56:54,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-23 13:56:54,712 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 13:56:54,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-23 13:56:55,075 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-23 13:56:55,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-23 13:56:55,321 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-23 13:56:55,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-23 13:56:55,781 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-23 13:56:55,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-23 13:56:56,082 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-23 13:56:56,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-23 13:56:56,616 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-23 13:56:56,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-23 13:56:57,028 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-23 13:56:57,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-23 13:56:57,951 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-23 13:56:57,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 161 treesize of output 176 [2021-11-23 13:57:02,235 INFO L354 Elim1Store]: treesize reduction 818, result has 0.4 percent of original size [2021-11-23 13:57:02,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 158 treesize of output 79 [2021-11-23 13:57:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 164 proven. 188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:02,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:04,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 13:57:04,194 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 198 treesize of output 190 [2021-11-23 13:57:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 54 proven. 298 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:04,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392929294] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:04,256 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:04,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 43, 26] total 71 [2021-11-23 13:57:04,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308636871] [2021-11-23 13:57:04,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:04,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-11-23 13:57:04,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-11-23 13:57:04,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=968, Invalid=4002, Unknown=0, NotChecked=0, Total=4970 [2021-11-23 13:57:04,260 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 71 states, 71 states have (on average 2.915492957746479) internal successors, (207), 71 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:12,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:12,551 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2021-11-23 13:57:12,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-23 13:57:12,552 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.915492957746479) internal successors, (207), 71 states have internal predecessors, (207), 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 84 [2021-11-23 13:57:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:12,553 INFO L225 Difference]: With dead ends: 172 [2021-11-23 13:57:12,553 INFO L226 Difference]: Without dead ends: 170 [2021-11-23 13:57:12,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 99 SyntacticMatches, 50 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7024 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=3321, Invalid=14501, Unknown=0, NotChecked=0, Total=17822 [2021-11-23 13:57:12,555 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 104 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:12,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 353 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 832 Invalid, 0 Unknown, 95 Unchecked, 1.2s Time] [2021-11-23 13:57:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-23 13:57:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 89. [2021-11-23 13:57:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.0340909090909092) internal successors, (91), 88 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 91 transitions. [2021-11-23 13:57:12,576 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 91 transitions. Word has length 84 [2021-11-23 13:57:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:12,576 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 91 transitions. [2021-11-23 13:57:12,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.915492957746479) internal successors, (207), 71 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2021-11-23 13:57:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-23 13:57:12,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:12,577 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:12,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:12,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:12,778 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:12,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2110702651, now seen corresponding path program 17 times [2021-11-23 13:57:12,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:12,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503453871] [2021-11-23 13:57:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:12,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 163 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:12,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:12,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503453871] [2021-11-23 13:57:12,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503453871] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:12,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980837510] [2021-11-23 13:57:12,985 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 13:57:12,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:12,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:12,993 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:12,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-23 13:57:13,441 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-11-23 13:57:13,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:57:13,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 13:57:13,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 200 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:13,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 228 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:14,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980837510] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:14,386 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:14,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 24, 24] total 36 [2021-11-23 13:57:14,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479316780] [2021-11-23 13:57:14,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:14,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-23 13:57:14,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:14,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-23 13:57:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=761, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 13:57:14,388 INFO L87 Difference]: Start difference. First operand 89 states and 91 transitions. Second operand has 36 states, 36 states have (on average 4.833333333333333) internal successors, (174), 36 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:14,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:14,605 INFO L93 Difference]: Finished difference Result 152 states and 157 transitions. [2021-11-23 13:57:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 13:57:14,606 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.833333333333333) internal successors, (174), 36 states have internal predecessors, (174), 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 88 [2021-11-23 13:57:14,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:14,607 INFO L225 Difference]: With dead ends: 152 [2021-11-23 13:57:14,607 INFO L226 Difference]: Without dead ends: 95 [2021-11-23 13:57:14,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=525, Invalid=807, Unknown=0, NotChecked=0, Total=1332 [2021-11-23 13:57:14,608 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 58 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:14,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 146 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:57:14,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-23 13:57:14,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-11-23 13:57:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 92 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2021-11-23 13:57:14,626 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 88 [2021-11-23 13:57:14,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:14,626 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2021-11-23 13:57:14,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.833333333333333) internal successors, (174), 36 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:14,626 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2021-11-23 13:57:14,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 13:57:14,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:14,628 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:14,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:14,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:14,834 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:14,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:14,834 INFO L85 PathProgramCache]: Analyzing trace with hash 2126956278, now seen corresponding path program 18 times [2021-11-23 13:57:14,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:14,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544462877] [2021-11-23 13:57:14,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:14,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 31 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:15,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544462877] [2021-11-23 13:57:15,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544462877] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290557695] [2021-11-23 13:57:15,657 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 13:57:15,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:15,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:15,659 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:15,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-23 13:57:16,246 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-11-23 13:57:16,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:57:16,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-23 13:57:16,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:16,264 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 15 treesize of output 11 [2021-11-23 13:57:16,307 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:57:16,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:57:16,359 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:57:16,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:57:16,489 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:57:16,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:57:16,581 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:57:16,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:57:16,746 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:57:16,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:57:16,866 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:57:16,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:57:17,088 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 13:57:17,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 13:57:17,259 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:57:17,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 13:57:17,528 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-23 13:57:17,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-23 13:57:17,728 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 13:57:17,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-23 13:57:18,076 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-23 13:57:18,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-23 13:57:18,314 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-23 13:57:18,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-23 13:57:18,728 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-23 13:57:18,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-23 13:57:19,041 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-23 13:57:19,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-23 13:57:19,567 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-23 13:57:19,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-23 13:57:19,964 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-23 13:57:19,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-23 13:57:20,580 INFO L354 Elim1Store]: treesize reduction 1228, result has 8.9 percent of original size [2021-11-23 13:57:20,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 158 treesize of output 184 [2021-11-23 13:57:21,142 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-23 13:57:21,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 169 treesize of output 187 [2021-11-23 13:57:22,190 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-23 13:57:22,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 175 treesize of output 193 [2021-11-23 13:57:27,111 INFO L354 Elim1Store]: treesize reduction 1142, result has 0.3 percent of original size [2021-11-23 13:57:27,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 185 treesize of output 84 [2021-11-23 13:57:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 202 proven. 229 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:27,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 60 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:29,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290557695] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:29,430 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:29,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 46, 28] total 75 [2021-11-23 13:57:29,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911315438] [2021-11-23 13:57:29,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:29,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-11-23 13:57:29,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:29,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-11-23 13:57:29,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1062, Invalid=4488, Unknown=0, NotChecked=0, Total=5550 [2021-11-23 13:57:29,433 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand has 75 states, 75 states have (on average 2.973333333333333) internal successors, (223), 75 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:37,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:37,759 INFO L93 Difference]: Finished difference Result 192 states and 205 transitions. [2021-11-23 13:57:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-11-23 13:57:37,762 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.973333333333333) internal successors, (223), 75 states have internal predecessors, (223), 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 92 [2021-11-23 13:57:37,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:37,763 INFO L225 Difference]: With dead ends: 192 [2021-11-23 13:57:37,764 INFO L226 Difference]: Without dead ends: 190 [2021-11-23 13:57:37,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 109 SyntacticMatches, 56 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8712 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=3822, Invalid=17640, Unknown=0, NotChecked=0, Total=21462 [2021-11-23 13:57:37,767 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 104 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:37,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 385 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 910 Invalid, 0 Unknown, 90 Unchecked, 1.9s Time] [2021-11-23 13:57:37,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-23 13:57:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 97. [2021-11-23 13:57:37,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.03125) internal successors, (99), 96 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) [2021-11-23 13:57:37,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 99 transitions. [2021-11-23 13:57:37,791 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 99 transitions. Word has length 92 [2021-11-23 13:57:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:37,792 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 99 transitions. [2021-11-23 13:57:37,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.973333333333333) internal successors, (223), 75 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:37,792 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2021-11-23 13:57:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 13:57:37,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:37,794 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:37,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:37,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-23 13:57:37,996 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:37,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:37,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1469941268, now seen corresponding path program 19 times [2021-11-23 13:57:37,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:37,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767478960] [2021-11-23 13:57:37,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:37,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 201 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:38,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:38,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767478960] [2021-11-23 13:57:38,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767478960] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:38,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207200012] [2021-11-23 13:57:38,204 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 13:57:38,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:38,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:38,209 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:38,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-23 13:57:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:38,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 13:57:38,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 242 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:38,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 273 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:39,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207200012] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:39,357 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:39,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 26, 26] total 39 [2021-11-23 13:57:39,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854581568] [2021-11-23 13:57:39,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:39,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-23 13:57:39,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:39,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-23 13:57:39,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=896, Unknown=0, NotChecked=0, Total=1482 [2021-11-23 13:57:39,360 INFO L87 Difference]: Start difference. First operand 97 states and 99 transitions. Second operand has 39 states, 39 states have (on average 4.871794871794871) internal successors, (190), 39 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:39,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:39,657 INFO L93 Difference]: Finished difference Result 164 states and 169 transitions. [2021-11-23 13:57:39,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-23 13:57:39,658 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.871794871794871) internal successors, (190), 39 states have internal predecessors, (190), 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 96 [2021-11-23 13:57:39,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:39,660 INFO L225 Difference]: With dead ends: 164 [2021-11-23 13:57:39,660 INFO L226 Difference]: Without dead ends: 103 [2021-11-23 13:57:39,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=946, Unknown=0, NotChecked=0, Total=1560 [2021-11-23 13:57:39,662 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 69 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:39,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 126 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:57:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-23 13:57:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2021-11-23 13:57:39,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.03) internal successors, (103), 100 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2021-11-23 13:57:39,696 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 96 [2021-11-23 13:57:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:39,696 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2021-11-23 13:57:39,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.871794871794871) internal successors, (190), 39 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2021-11-23 13:57:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-23 13:57:39,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:39,698 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:39,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:39,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-23 13:57:39,911 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:39,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash 137728423, now seen corresponding path program 20 times [2021-11-23 13:57:39,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:39,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782620706] [2021-11-23 13:57:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:39,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 34 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:41,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:41,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782620706] [2021-11-23 13:57:41,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782620706] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319705835] [2021-11-23 13:57:41,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:57:41,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:41,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:41,145 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:41,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-23 13:57:41,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:57:41,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:57:41,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-23 13:57:41,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:41,295 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 15 treesize of output 11 [2021-11-23 13:57:41,406 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 13:57:41,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 13:57:41,472 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 13:57:41,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 13:57:41,631 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 13:57:41,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 13:57:41,734 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 13:57:41,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 13:57:41,930 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 13:57:41,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 13:57:42,059 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 13:57:42,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 13:57:42,324 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 13:57:42,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 13:57:42,486 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 13:57:42,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 13:57:42,789 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-23 13:57:42,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-23 13:57:43,010 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 13:57:43,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-23 13:57:43,375 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-23 13:57:43,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-23 13:57:43,636 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-23 13:57:43,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-23 13:57:44,085 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-23 13:57:44,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-23 13:57:44,408 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-23 13:57:44,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-23 13:57:44,944 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-23 13:57:44,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-23 13:57:45,335 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-23 13:57:45,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-23 13:57:45,948 INFO L354 Elim1Store]: treesize reduction 1228, result has 8.9 percent of original size [2021-11-23 13:57:45,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 158 treesize of output 184 [2021-11-23 13:57:46,417 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-23 13:57:46,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 169 treesize of output 187 [2021-11-23 13:57:46,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:46,955 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:57:46,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 172 treesize of output 201 [2021-11-23 13:57:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:57:47,259 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:57:47,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 183 treesize of output 204 [2021-11-23 13:57:48,731 INFO L354 Elim1Store]: treesize reduction 1654, result has 7.4 percent of original size [2021-11-23 13:57:48,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 192 treesize of output 212 [2021-11-23 13:57:59,467 INFO L354 Elim1Store]: treesize reduction 1150, result has 0.3 percent of original size [2021-11-23 13:57:59,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 185 treesize of output 92 [2021-11-23 13:57:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 224 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:59,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:58:02,335 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) is different from false [2021-11-23 13:58:05,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 53 [2021-11-23 13:58:05,487 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 405 treesize of output 401 [2021-11-23 13:58:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 65 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2021-11-23 13:58:05,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319705835] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:58:05,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:58:05,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 50, 32] total 84 [2021-11-23 13:58:05,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038787057] [2021-11-23 13:58:05,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:58:05,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2021-11-23 13:58:05,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:58:05,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-11-23 13:58:05,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1288, Invalid=5519, Unknown=3, NotChecked=162, Total=6972 [2021-11-23 13:58:05,522 INFO L87 Difference]: Start difference. First operand 101 states and 103 transitions. Second operand has 84 states, 84 states have (on average 2.9404761904761907) internal successors, (247), 84 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:09,105 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 40 .cse1)) (+ |c_ULTIMATE.start_main_~i~0#1| 10)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4)) (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1))) (= |c_ULTIMATE.start_main_~i~0#1| (+ (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1)) 2)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24)) (+ 6 |c_ULTIMATE.start_main_~i~0#1|)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 32 .cse1)) (+ |c_ULTIMATE.start_main_~i~0#1| 8)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1)) (+ |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1)) (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (= |c_ULTIMATE.start_main_~i~0#1| (+ (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 36 .cse1)) (+ 9 |c_ULTIMATE.start_main_~i~0#1|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))))) is different from false [2021-11-23 13:58:18,511 WARN L227 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 168 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:58:21,095 WARN L838 $PredicateComparison]: unable to prove that (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 9 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 36) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 10))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 32)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 9)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse6) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse7) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6))) is different from false [2021-11-23 13:58:22,155 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 9 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 36) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 10))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 32)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 9)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7)) |c_ULTIMATE.start_main_~i~0#1|) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select (store .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse7) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse9 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse9) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)))) is different from false [2021-11-23 13:58:38,379 WARN L227 SmtUtils]: Spent 15.54s on a formula simplification that was a NOOP. DAG size: 158 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:58:47,139 WARN L227 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 156 DAG size of output: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:58:49,541 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse7) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse7))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6))))) is different from false [2021-11-23 13:58:50,666 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse8 (store .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse6) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6)) |c_ULTIMATE.start_main_~i~0#1|) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse7) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse6))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse9 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse9) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6))))) is different from false [2021-11-23 13:59:02,591 WARN L227 SmtUtils]: Spent 11.21s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:59:18,547 WARN L227 SmtUtils]: Spent 13.67s on a formula simplification. DAG size of input: 146 DAG size of output: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:59:21,174 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse5 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse6) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse6))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse7) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse6)))))) is different from false [2021-11-23 13:59:22,430 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse7 (store .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse5) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)) |c_ULTIMATE.start_main_~i~0#1|) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse6) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse5))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse5)))))) is different from false [2021-11-23 13:59:30,318 WARN L227 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:59:42,511 WARN L227 SmtUtils]: Spent 10.29s on a formula simplification. DAG size of input: 136 DAG size of output: 60 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:59:44,979 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse4 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse5) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse5))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse5))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse6) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse5)))))) is different from false [2021-11-23 13:59:46,050 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (store .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse5) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse5))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse5))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse7) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse5)))))) is different from false [2021-11-23 13:59:55,626 WARN L227 SmtUtils]: Spent 9.01s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:00:03,718 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:00:04,901 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:00:22,148 WARN L227 SmtUtils]: Spent 11.93s on a formula simplification. DAG size of input: 116 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:00:24,738 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:00:25,955 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:00:43,242 WARN L227 SmtUtils]: Spent 11.23s on a formula simplification. DAG size of input: 107 DAG size of output: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:00:45,815 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:00:46,952 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (= (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:00:55,729 WARN L227 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 98 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:00:58,100 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ |c_ULTIMATE.start_main_~i~0#1| 8) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 32 .cse1))) (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (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| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:00:59,301 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ |c_ULTIMATE.start_main_~i~0#1| 8) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 32 .cse1))) (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (= (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (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_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-23 14:01:13,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:01:13,234 INFO L93 Difference]: Finished difference Result 234 states and 257 transitions. [2021-11-23 14:01:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2021-11-23 14:01:13,235 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 2.9404761904761907) internal successors, (247), 84 states have internal predecessors, (247), 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 100 [2021-11-23 14:01:13,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:01:13,237 INFO L225 Difference]: With dead ends: 234 [2021-11-23 14:01:13,237 INFO L226 Difference]: Without dead ends: 232 [2021-11-23 14:01:13,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 107 SyntacticMatches, 72 SemanticMatches, 186 ConstructedPredicates, 18 IntricatePredicates, 0 DeprecatedPredicates, 12827 ImplicationChecksByTransitivity, 197.9s TimeCoverageRelationStatistics Valid=5525, Invalid=23254, Unknown=23, NotChecked=6354, Total=35156 [2021-11-23 14:01:13,242 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 131 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 776 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 14:01:13,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 511 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 781 Invalid, 0 Unknown, 776 Unchecked, 1.5s Time] [2021-11-23 14:01:13,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-23 14:01:13,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 105. [2021-11-23 14:01:13,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.0288461538461537) internal successors, (107), 104 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:01:13,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 107 transitions. [2021-11-23 14:01:13,270 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 107 transitions. Word has length 100 [2021-11-23 14:01:13,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:01:13,270 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 107 transitions. [2021-11-23 14:01:13,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.9404761904761907) internal successors, (247), 84 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:01:13,270 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 107 transitions. [2021-11-23 14:01:13,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 14:01:13,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:01:13,271 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:01:13,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-23 14:01:13,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:01:13,472 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:01:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:01:13,473 INFO L85 PathProgramCache]: Analyzing trace with hash -216366051, now seen corresponding path program 21 times [2021-11-23 14:01:13,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:01:13,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956943923] [2021-11-23 14:01:13,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:01:13,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:01:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:01:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 243 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:01:13,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:01:13,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956943923] [2021-11-23 14:01:13,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956943923] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:01:13,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935508100] [2021-11-23 14:01:13,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 14:01:13,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:01:13,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:01:13,721 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:01:13,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-23 14:01:14,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-11-23 14:01:14,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:01:14,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 14:01:14,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:01:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 288 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:01:15,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:01:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 322 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:01:15,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935508100] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:01:15,958 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:01:15,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 28, 28] total 42 [2021-11-23 14:01:15,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747104454] [2021-11-23 14:01:15,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:01:15,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-23 14:01:15,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:01:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-23 14:01:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=680, Invalid=1042, Unknown=0, NotChecked=0, Total=1722 [2021-11-23 14:01:15,960 INFO L87 Difference]: Start difference. First operand 105 states and 107 transitions. Second operand has 42 states, 42 states have (on average 4.904761904761905) internal successors, (206), 42 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:01:16,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:01:16,260 INFO L93 Difference]: Finished difference Result 176 states and 181 transitions. [2021-11-23 14:01:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-23 14:01:16,261 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.904761904761905) internal successors, (206), 42 states have internal predecessors, (206), 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 104 [2021-11-23 14:01:16,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:01:16,262 INFO L225 Difference]: With dead ends: 176 [2021-11-23 14:01:16,262 INFO L226 Difference]: Without dead ends: 111 [2021-11-23 14:01:16,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=710, Invalid=1096, Unknown=0, NotChecked=0, Total=1806 [2021-11-23 14:01:16,263 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 55 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:01:16,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 174 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 14:01:16,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-23 14:01:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2021-11-23 14:01:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.0277777777777777) internal successors, (111), 108 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:01:16,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 111 transitions. [2021-11-23 14:01:16,304 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 111 transitions. Word has length 104 [2021-11-23 14:01:16,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:01:16,305 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 111 transitions. [2021-11-23 14:01:16,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.904761904761905) internal successors, (206), 42 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:01:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 111 transitions. [2021-11-23 14:01:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 14:01:16,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:01:16,307 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:01:16,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-23 14:01:16,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:01:16,526 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:01:16,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:01:16,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1138995416, now seen corresponding path program 22 times [2021-11-23 14:01:16,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:01:16,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650132966] [2021-11-23 14:01:16,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:01:16,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:01:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:01:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 65 proven. 548 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:01:19,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:01:19,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650132966] [2021-11-23 14:01:19,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650132966] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:01:19,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142810772] [2021-11-23 14:01:19,330 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 14:01:19,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:01:19,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:01:19,332 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:01:19,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_660898b1-e7f5-43da-ab1f-2d0e677263c1/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-23 14:01:19,422 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 14:01:19,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:01:19,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-23 14:01:19,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:01:19,459 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 15 treesize of output 11 [2021-11-23 14:01:19,569 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-23 14:01:19,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2021-11-23 14:01:19,650 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-23 14:01:19,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-23 14:01:19,836 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-23 14:01:19,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-23 14:01:19,964 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-23 14:01:19,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-23 14:01:20,224 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-23 14:01:20,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-23 14:01:20,374 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-23 14:01:20,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-23 14:01:20,661 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-23 14:01:20,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-23 14:01:20,853 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-23 14:01:20,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-23 14:01:21,204 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-23 14:01:21,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-23 14:01:21,457 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-23 14:01:21,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-23 14:01:21,886 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-23 14:01:21,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-23 14:01:22,195 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-23 14:01:22,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-23 14:01:22,701 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-23 14:01:22,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-23 14:01:23,070 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-23 14:01:23,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-23 14:01:23,702 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-23 14:01:23,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-23 14:01:24,143 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-23 14:01:24,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-23 14:01:24,860 INFO L354 Elim1Store]: treesize reduction 1228, result has 8.9 percent of original size [2021-11-23 14:01:24,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 158 treesize of output 184 [2021-11-23 14:01:25,379 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-23 14:01:25,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 169 treesize of output 187 [2021-11-23 14:01:26,187 INFO L354 Elim1Store]: treesize reduction 1450, result has 8.3 percent of original size [2021-11-23 14:01:26,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 172 treesize of output 201 [2021-11-23 14:01:26,844 INFO L354 Elim1Store]: treesize reduction 1606, result has 7.6 percent of original size [2021-11-23 14:01:26,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 77 case distinctions, treesize of input 183 treesize of output 204 [2021-11-23 14:01:27,824 INFO L354 Elim1Store]: treesize reduction 1690, result has 7.9 percent of original size [2021-11-23 14:01:27,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 186 treesize of output 218 [2021-11-23 14:01:28,706 INFO L354 Elim1Store]: treesize reduction 1860, result has 7.2 percent of original size [2021-11-23 14:01:28,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 197 treesize of output 221 [2021-11-23 14:01:30,412 INFO L354 Elim1Store]: treesize reduction 1860, result has 7.2 percent of original size [2021-11-23 14:01:30,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 203 treesize of output 227 [2021-11-23 14:01:39,070 INFO L354 Elim1Store]: treesize reduction 1376, result has 0.2 percent of original size [2021-11-23 14:01:39,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 197 treesize of output 94 [2021-11-23 14:01:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 290 proven. 323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:01:39,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:01:43,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 14:01:43,497 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 198 treesize of output 190 [2021-11-23 14:01:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 72 proven. 541 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:01:43,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142810772] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:01:43,545 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:01:43,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 55, 32] total 114 [2021-11-23 14:01:43,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436395662] [2021-11-23 14:01:43,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:01:43,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2021-11-23 14:01:43,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:01:43,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2021-11-23 14:01:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2453, Invalid=10429, Unknown=0, NotChecked=0, Total=12882 [2021-11-23 14:01:43,550 INFO L87 Difference]: Start difference. First operand 109 states and 111 transitions. Second operand has 114 states, 114 states have (on average 2.754385964912281) internal successors, (314), 114 states have internal predecessors, (314), 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)