./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/condg.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/condg.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro --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 2909e53e12aac54327f6ce090ad489c978c1fbcfb0ae8bd4172abe8a99b2cb53 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:34:25,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:34:25,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:34:25,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:34:25,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:34:25,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:34:25,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:34:25,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:34:25,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:34:25,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:34:25,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:34:25,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:34:25,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:34:25,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:34:25,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:34:25,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:34:25,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:34:25,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:34:25,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:34:25,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:34:25,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:34:25,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:34:25,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:34:25,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:34:25,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:34:25,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:34:25,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:34:25,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:34:25,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:34:25,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:34:25,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:34:25,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:34:25,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:34:25,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:34:25,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:34:25,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:34:25,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:34:25,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:34:25,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:34:25,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:34:25,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:34:25,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:34:25,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:34:25,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:34:25,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:34:25,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:34:25,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:34:25,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:34:25,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:34:25,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:34:25,537 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:34:25,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:34:25,538 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:34:25,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:34:25,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:34:25,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:34:25,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:34:25,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:34:25,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:34:25,540 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:34:25,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:34:25,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:34:25,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:34:25,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:34:25,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:34:25,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:34:25,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:34:25,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:34:25,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:34:25,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:34:25,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:34:25,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:34:25,543 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:34:25,543 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:34:25,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:34:25,544 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_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2909e53e12aac54327f6ce090ad489c978c1fbcfb0ae8bd4172abe8a99b2cb53 [2022-11-18 20:34:25,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:34:25,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:34:25,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:34:25,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:34:25,884 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:34:25,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-fpi/condg.c [2022-11-18 20:34:25,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/data/42988c14c/19f6ad07e60f46e3947ec7e4848e91a4/FLAG127e2caf7 [2022-11-18 20:34:26,411 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:34:26,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/sv-benchmarks/c/array-fpi/condg.c [2022-11-18 20:34:26,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/data/42988c14c/19f6ad07e60f46e3947ec7e4848e91a4/FLAG127e2caf7 [2022-11-18 20:34:26,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/data/42988c14c/19f6ad07e60f46e3947ec7e4848e91a4 [2022-11-18 20:34:26,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:34:26,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:34:26,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:34:26,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:34:26,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:34:26,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:26" (1/1) ... [2022-11-18 20:34:26,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73137530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:26, skipping insertion in model container [2022-11-18 20:34:26,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:26" (1/1) ... [2022-11-18 20:34:26,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:34:26,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:34:27,047 WARN L234 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_c0597e14-aecf-4627-9ca5-20ac4d691004/sv-benchmarks/c/array-fpi/condg.c[588,601] [2022-11-18 20:34:27,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:34:27,101 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:34:27,119 WARN L234 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_c0597e14-aecf-4627-9ca5-20ac4d691004/sv-benchmarks/c/array-fpi/condg.c[588,601] [2022-11-18 20:34:27,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:34:27,161 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:34:27,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27 WrapperNode [2022-11-18 20:34:27,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:34:27,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:34:27,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:34:27,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:34:27,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,219 INFO L138 Inliner]: procedures = 17, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2022-11-18 20:34:27,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:34:27,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:34:27,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:34:27,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:34:27,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,259 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:34:27,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:34:27,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:34:27,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:34:27,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (1/1) ... [2022-11-18 20:34:27,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:34:27,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:27,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:34:27,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:34:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:34:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:34:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:34:27,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:34:27,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:34:27,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:34:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:34:27,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:34:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:34:27,445 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:34:27,447 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:34:27,680 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:34:27,686 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:34:27,686 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:34:27,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:27 BoogieIcfgContainer [2022-11-18 20:34:27,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:34:27,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:34:27,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:34:27,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:34:27,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:34:26" (1/3) ... [2022-11-18 20:34:27,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7999feb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:27, skipping insertion in model container [2022-11-18 20:34:27,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:27" (2/3) ... [2022-11-18 20:34:27,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7999feb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:27, skipping insertion in model container [2022-11-18 20:34:27,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:27" (3/3) ... [2022-11-18 20:34:27,709 INFO L112 eAbstractionObserver]: Analyzing ICFG condg.c [2022-11-18 20:34:27,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:34:27,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:34:27,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:34:27,829 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69cc6865, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:34:27,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:34:27,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:27,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:34:27,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:27,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:27,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:27,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:27,850 INFO L85 PathProgramCache]: Analyzing trace with hash -592817118, now seen corresponding path program 1 times [2022-11-18 20:34:27,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:27,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270004413] [2022-11-18 20:34:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:27,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:28,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:28,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270004413] [2022-11-18 20:34:28,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270004413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:34:28,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:34:28,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:34:28,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219337054] [2022-11-18 20:34:28,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:34:28,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:34:28,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:28,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:34:28,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:34:28,145 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-11-18 20:34:28,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:28,166 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions. [2022-11-18 20:34:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:34:28,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2022-11-18 20:34:28,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:28,178 INFO L225 Difference]: With dead ends: 46 [2022-11-18 20:34:28,178 INFO L226 Difference]: Without dead ends: 21 [2022-11-18 20:34:28,182 INFO L412 NwaCegarLoop]: 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 [2022-11-18 20:34:28,187 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:28,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:34:28,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-18 20:34:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-18 20:34:28,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-11-18 20:34:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-18 20:34:28,225 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2022-11-18 20:34:28,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:28,226 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-18 20:34:28,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-11-18 20:34:28,227 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-18 20:34:28,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:34:28,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:28,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:28,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:34:28,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:28,231 INFO L85 PathProgramCache]: Analyzing trace with hash 108247460, now seen corresponding path program 1 times [2022-11-18 20:34:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:28,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477303010] [2022-11-18 20:34:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:28,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:28,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:28,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477303010] [2022-11-18 20:34:28,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477303010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:34:28,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:34:28,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:34:28,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326096809] [2022-11-18 20:34:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:34:28,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:34:28,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:34:28,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:34:28,415 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-18 20:34:28,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:28,524 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2022-11-18 20:34:28,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:34:28,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-11-18 20:34:28,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:28,526 INFO L225 Difference]: With dead ends: 48 [2022-11-18 20:34:28,526 INFO L226 Difference]: Without dead ends: 34 [2022-11-18 20:34:28,526 INFO L412 NwaCegarLoop]: 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 [2022-11-18 20:34:28,527 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 45 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:28,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 16 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:34:28,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-18 20:34:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2022-11-18 20:34:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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) [2022-11-18 20:34:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-18 20:34:28,535 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 14 [2022-11-18 20:34:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:28,535 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-18 20:34:28,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-18 20:34:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-18 20:34:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 20:34:28,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:28,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:28,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:34:28,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:28,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:28,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1242970242, now seen corresponding path program 1 times [2022-11-18 20:34:28,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:28,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703912102] [2022-11-18 20:34:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:28,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:29,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:29,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703912102] [2022-11-18 20:34:29,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703912102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:29,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924866633] [2022-11-18 20:34:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:29,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:29,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:29,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:29,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:34:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:29,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 20:34:29,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:29,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:34:29,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-18 20:34:29,985 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-18 20:34:30,067 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 46 treesize of output 20 [2022-11-18 20:34:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:30,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:30,355 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:34:30,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-11-18 20:34:30,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:34:30,369 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 32 [2022-11-18 20:34:30,400 INFO L350 Elim1Store]: Elim1 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 5 treesize of output 3 [2022-11-18 20:34:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:30,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924866633] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:30,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:30,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 18 [2022-11-18 20:34:30,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079617032] [2022-11-18 20:34:30,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:30,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:34:30,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:30,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:34:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=249, Unknown=2, NotChecked=0, Total=306 [2022-11-18 20:34:30,431 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:31,125 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-11-18 20:34:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:34:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 20:34:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:31,127 INFO L225 Difference]: With dead ends: 56 [2022-11-18 20:34:31,127 INFO L226 Difference]: Without dead ends: 54 [2022-11-18 20:34:31,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=170, Invalid=758, Unknown=2, NotChecked=0, Total=930 [2022-11-18 20:34:31,130 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 93 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:31,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 127 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 223 Invalid, 0 Unknown, 17 Unchecked, 0.3s Time] [2022-11-18 20:34:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-18 20:34:31,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 33. [2022-11-18 20:34:31,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:31,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-11-18 20:34:31,144 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 21 [2022-11-18 20:34:31,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:31,145 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-11-18 20:34:31,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:31,145 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-11-18 20:34:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 20:34:31,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:31,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:31,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:34:31,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:31,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:31,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:31,354 INFO L85 PathProgramCache]: Analyzing trace with hash 532037120, now seen corresponding path program 1 times [2022-11-18 20:34:31,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:31,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251889157] [2022-11-18 20:34:31,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:31,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:32,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:32,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251889157] [2022-11-18 20:34:32,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251889157] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:32,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818574874] [2022-11-18 20:34:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:32,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:32,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:32,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:32,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:34:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:32,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-18 20:34:32,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:32,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:34:32,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:34:32,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:34:32,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-18 20:34:32,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-18 20:34:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:32,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:32,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:34:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:32,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818574874] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:32,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:32,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 22 [2022-11-18 20:34:32,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60106707] [2022-11-18 20:34:32,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:32,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:34:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:32,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:34:32,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:34:32,767 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:33,212 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2022-11-18 20:34:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:34:33,213 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 20:34:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:33,217 INFO L225 Difference]: With dead ends: 66 [2022-11-18 20:34:33,217 INFO L226 Difference]: Without dead ends: 56 [2022-11-18 20:34:33,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2022-11-18 20:34:33,225 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:33,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 91 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 161 Invalid, 0 Unknown, 8 Unchecked, 0.2s Time] [2022-11-18 20:34:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-18 20:34:33,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2022-11-18 20:34:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 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) [2022-11-18 20:34:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2022-11-18 20:34:33,251 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 21 [2022-11-18 20:34:33,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:33,255 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2022-11-18 20:34:33,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2022-11-18 20:34:33,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:34:33,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:33,260 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:33,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:34:33,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:33,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:33,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1912499326, now seen corresponding path program 2 times [2022-11-18 20:34:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:33,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535915507] [2022-11-18 20:34:33,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:33,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:34:33,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:33,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535915507] [2022-11-18 20:34:33,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535915507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:33,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745427916] [2022-11-18 20:34:33,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:34:33,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:33,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:33,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:33,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:34:33,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:34:33,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:34:33,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:34:33,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:34:33,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:34:33,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745427916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:33,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:33,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-11-18 20:34:33,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017987358] [2022-11-18 20:34:33,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:33,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:34:33,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:34:33,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:34:33,830 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 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) [2022-11-18 20:34:34,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:34,223 INFO L93 Difference]: Finished difference Result 93 states and 114 transitions. [2022-11-18 20:34:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:34:34,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 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 23 [2022-11-18 20:34:34,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:34,225 INFO L225 Difference]: With dead ends: 93 [2022-11-18 20:34:34,225 INFO L226 Difference]: Without dead ends: 55 [2022-11-18 20:34:34,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:34:34,226 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 149 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:34,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 92 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:34:34,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-18 20:34:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2022-11-18 20:34:34,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 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) [2022-11-18 20:34:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2022-11-18 20:34:34,248 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 23 [2022-11-18 20:34:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:34,249 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2022-11-18 20:34:34,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 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) [2022-11-18 20:34:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-11-18 20:34:34,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:34:34,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:34,250 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:34,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 20:34:34,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:34,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:34,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:34,452 INFO L85 PathProgramCache]: Analyzing trace with hash 550852762, now seen corresponding path program 1 times [2022-11-18 20:34:34,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:34,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414376328] [2022-11-18 20:34:34,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:34,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:34:34,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:34,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414376328] [2022-11-18 20:34:34,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414376328] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:34,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070701095] [2022-11-18 20:34:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:34,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:34,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:34,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:34,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:34:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:34,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:34:34,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:34,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:34:34,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:34:34,789 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 17 [2022-11-18 20:34:34,798 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 8 [2022-11-18 20:34:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:34:34,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:34:36,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070701095] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:36,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:36,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 8 [2022-11-18 20:34:36,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683649906] [2022-11-18 20:34:36,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:36,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:34:36,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:36,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:34:36,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2022-11-18 20:34:36,954 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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) [2022-11-18 20:34:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:37,146 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2022-11-18 20:34:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:34:37,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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 [2022-11-18 20:34:37,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:37,153 INFO L225 Difference]: With dead ends: 76 [2022-11-18 20:34:37,153 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 20:34:37,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=41, Invalid=90, Unknown=1, NotChecked=0, Total=132 [2022-11-18 20:34:37,154 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 50 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:37,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 67 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 21 Unchecked, 0.1s Time] [2022-11-18 20:34:37,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 20:34:37,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 44. [2022-11-18 20:34:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-11-18 20:34:37,167 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 28 [2022-11-18 20:34:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:37,167 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-11-18 20:34:37,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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) [2022-11-18 20:34:37,168 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-11-18 20:34:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:34:37,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:37,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:37,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:34:37,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:37,376 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:37,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:37,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1969107172, now seen corresponding path program 3 times [2022-11-18 20:34:37,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:37,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402849470] [2022-11-18 20:34:37,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:37,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:34:39,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:39,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402849470] [2022-11-18 20:34:39,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402849470] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:39,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062854139] [2022-11-18 20:34:39,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:34:39,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:39,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:39,148 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:39,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:34:39,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:34:39,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:34:39,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-18 20:34:39,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:39,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:34:39,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:39,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:34:39,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:39,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:39,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:34:39,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:39,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:34:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:39,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2022-11-18 20:34:39,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:39,830 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-18 20:34:39,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 42 [2022-11-18 20:34:40,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:40,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:34:40,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 35 [2022-11-18 20:34:40,529 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:40,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:42,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062854139] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:42,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:42,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 16] total 42 [2022-11-18 20:34:42,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299227590] [2022-11-18 20:34:42,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:42,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-18 20:34:42,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-18 20:34:42,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1514, Unknown=0, NotChecked=0, Total=1722 [2022-11-18 20:34:42,784 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 42 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 42 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:45,944 INFO L93 Difference]: Finished difference Result 97 states and 114 transitions. [2022-11-18 20:34:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:34:45,944 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 42 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-18 20:34:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:45,947 INFO L225 Difference]: With dead ends: 97 [2022-11-18 20:34:45,947 INFO L226 Difference]: Without dead ends: 83 [2022-11-18 20:34:45,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=395, Invalid=2797, Unknown=0, NotChecked=0, Total=3192 [2022-11-18 20:34:45,949 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:45,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 174 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 372 Invalid, 0 Unknown, 293 Unchecked, 0.5s Time] [2022-11-18 20:34:45,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-18 20:34:45,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 59. [2022-11-18 20:34:45,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 58 states have internal predecessors, (72), 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) [2022-11-18 20:34:45,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2022-11-18 20:34:45,990 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 28 [2022-11-18 20:34:45,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:45,990 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2022-11-18 20:34:45,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 42 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:45,991 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2022-11-18 20:34:45,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:34:45,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:45,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:45,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:34:46,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 20:34:46,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1202810022, now seen corresponding path program 4 times [2022-11-18 20:34:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:46,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117839186] [2022-11-18 20:34:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:34:46,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:46,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117839186] [2022-11-18 20:34:46,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117839186] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:46,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387919866] [2022-11-18 20:34:46,337 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:34:46,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:46,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:46,341 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:46,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:34:46,423 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:34:46,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:34:46,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:34:46,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:34:46,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:34:46,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387919866] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:46,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:46,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-18 20:34:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962508184] [2022-11-18 20:34:46,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:46,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:34:46,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:34:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:34:46,703 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 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) [2022-11-18 20:34:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:47,440 INFO L93 Difference]: Finished difference Result 142 states and 170 transitions. [2022-11-18 20:34:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 20:34:47,441 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-18 20:34:47,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:47,442 INFO L225 Difference]: With dead ends: 142 [2022-11-18 20:34:47,442 INFO L226 Difference]: Without dead ends: 106 [2022-11-18 20:34:47,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 20:34:47,444 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 314 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:47,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 175 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:34:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-18 20:34:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 67. [2022-11-18 20:34:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 66 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2022-11-18 20:34:47,467 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 30 [2022-11-18 20:34:47,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:47,468 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2022-11-18 20:34:47,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 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) [2022-11-18 20:34:47,468 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2022-11-18 20:34:47,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:34:47,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:47,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:47,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-18 20:34:47,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:47,676 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash -736332014, now seen corresponding path program 1 times [2022-11-18 20:34:47,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:47,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134397263] [2022-11-18 20:34:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:47,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:34:48,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:48,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134397263] [2022-11-18 20:34:48,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134397263] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:48,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415727731] [2022-11-18 20:34:48,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:48,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:48,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:48,599 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:48,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:34:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:48,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-18 20:34:48,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:48,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:34:48,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-11-18 20:34:48,828 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-18 20:34:48,848 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-18 20:34:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:48,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:34:48,983 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 37 treesize of output 17 [2022-11-18 20:34:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:34:49,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:49,494 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:34:49,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2022-11-18 20:34:49,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:34:49,506 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 34 [2022-11-18 20:34:49,525 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-18 20:34:49,590 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:34:49,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415727731] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:49,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:49,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 26 [2022-11-18 20:34:49,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207773452] [2022-11-18 20:34:49,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:49,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 20:34:49,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:49,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 20:34:49,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2022-11-18 20:34:49,593 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 26 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 states have internal predecessors, (72), 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) [2022-11-18 20:34:50,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:50,969 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2022-11-18 20:34:50,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:34:50,970 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 states have internal predecessors, (72), 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 [2022-11-18 20:34:50,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:50,972 INFO L225 Difference]: With dead ends: 117 [2022-11-18 20:34:50,972 INFO L226 Difference]: Without dead ends: 106 [2022-11-18 20:34:50,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 50 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=274, Invalid=1618, Unknown=0, NotChecked=0, Total=1892 [2022-11-18 20:34:50,974 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 152 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:50,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 199 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 437 Invalid, 0 Unknown, 44 Unchecked, 0.5s Time] [2022-11-18 20:34:50,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-18 20:34:51,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 85. [2022-11-18 20:34:51,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 84 states have internal predecessors, (100), 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) [2022-11-18 20:34:51,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2022-11-18 20:34:51,015 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 32 [2022-11-18 20:34:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:51,016 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2022-11-18 20:34:51,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 states have internal predecessors, (72), 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) [2022-11-18 20:34:51,017 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2022-11-18 20:34:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:34:51,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:51,026 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:51,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:34:51,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:51,241 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:51,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash -35267436, now seen corresponding path program 1 times [2022-11-18 20:34:51,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:51,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045653234] [2022-11-18 20:34:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:51,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:34:51,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:51,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045653234] [2022-11-18 20:34:51,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045653234] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:51,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435871653] [2022-11-18 20:34:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:51,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:51,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:51,368 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:51,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:34:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:51,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 20:34:51,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:51,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:34:51,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:34:51,529 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-18 20:34:51,538 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-18 20:34:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:34:51,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:34:51,559 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_333 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_333) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) |c_ULTIMATE.start_main_#t~mem11#1|)) is different from false [2022-11-18 20:34:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 1 not checked. [2022-11-18 20:34:51,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435871653] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:34:51,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:34:51,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 8 [2022-11-18 20:34:51,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769739239] [2022-11-18 20:34:51,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:34:51,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:34:51,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:51,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:34:51,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2022-11-18 20:34:51,601 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-18 20:34:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:55,736 INFO L93 Difference]: Finished difference Result 97 states and 113 transitions. [2022-11-18 20:34:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:34:55,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 [2022-11-18 20:34:55,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:55,738 INFO L225 Difference]: With dead ends: 97 [2022-11-18 20:34:55,738 INFO L226 Difference]: Without dead ends: 64 [2022-11-18 20:34:55,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=24, Invalid=51, Unknown=1, NotChecked=14, Total=90 [2022-11-18 20:34:55,741 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:55,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 63 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2022-11-18 20:34:55,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-18 20:34:55,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-18 20:34:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 63 states have internal predecessors, (77), 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) [2022-11-18 20:34:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2022-11-18 20:34:55,776 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 32 [2022-11-18 20:34:55,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:55,776 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2022-11-18 20:34:55,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-18 20:34:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2022-11-18 20:34:55,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 20:34:55,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:55,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:55,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:34:55,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:34:55,988 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:55,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:55,988 INFO L85 PathProgramCache]: Analyzing trace with hash -143226682, now seen corresponding path program 2 times [2022-11-18 20:34:55,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:55,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976058482] [2022-11-18 20:34:55,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:55,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:34:57,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:57,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976058482] [2022-11-18 20:34:57,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976058482] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:34:57,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774035330] [2022-11-18 20:34:57,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:34:57,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:34:57,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:57,343 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:34:57,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:34:57,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:34:57,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:34:57,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-18 20:34:57,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:34:57,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:34:57,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:57,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:34:57,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:57,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:57,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 20:34:57,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:57,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:57,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:57,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2022-11-18 20:34:58,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:34:58,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-11-18 20:34:58,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:34:58,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2022-11-18 20:34:58,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2022-11-18 20:34:58,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:34:58,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:58,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 56 [2022-11-18 20:34:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:59,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:59,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:59,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:34:59,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 52 [2022-11-18 20:34:59,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:59,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:34:59,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-18 20:34:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:59,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:02,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:02,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:02,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774035330] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:02,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:02,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 26, 23] total 58 [2022-11-18 20:35:02,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540368633] [2022-11-18 20:35:02,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:02,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-18 20:35:02,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:02,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-18 20:35:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=486, Invalid=2820, Unknown=0, NotChecked=0, Total=3306 [2022-11-18 20:35:02,640 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand has 58 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 58 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:05,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:05,665 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2022-11-18 20:35:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 20:35:05,666 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 58 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-18 20:35:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:05,667 INFO L225 Difference]: With dead ends: 104 [2022-11-18 20:35:05,667 INFO L226 Difference]: Without dead ends: 102 [2022-11-18 20:35:05,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2644 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1075, Invalid=6581, Unknown=0, NotChecked=0, Total=7656 [2022-11-18 20:35:05,671 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 153 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:05,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 147 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 334 Invalid, 0 Unknown, 293 Unchecked, 0.6s Time] [2022-11-18 20:35:05,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-18 20:35:05,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2022-11-18 20:35:05,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.255813953488372) internal successors, (108), 86 states have internal predecessors, (108), 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) [2022-11-18 20:35:05,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2022-11-18 20:35:05,693 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 35 [2022-11-18 20:35:05,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:05,694 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2022-11-18 20:35:05,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 58 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:05,694 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2022-11-18 20:35:05,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 20:35:05,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:05,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:05,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-18 20:35:05,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:35:05,902 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:05,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:05,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1631780680, now seen corresponding path program 2 times [2022-11-18 20:35:05,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:05,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148941956] [2022-11-18 20:35:05,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:05,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-18 20:35:06,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:06,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148941956] [2022-11-18 20:35:06,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148941956] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:06,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766715414] [2022-11-18 20:35:06,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:35:06,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:06,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:06,102 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:06,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:35:06,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:35:06,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:06,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:35:06,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:06,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:35:06,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:06,399 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-18 20:35:06,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:06,447 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-18 20:35:06,469 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-18 20:35:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:35:06,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:08,551 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_457 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_457) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) |c_ULTIMATE.start_main_#t~mem11#1|)) is different from false [2022-11-18 20:35:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 2 not checked. [2022-11-18 20:35:08,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766715414] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:08,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:08,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 7] total 15 [2022-11-18 20:35:08,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071411438] [2022-11-18 20:35:08,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:08,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:35:08,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:08,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:35:08,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=136, Unknown=2, NotChecked=24, Total=210 [2022-11-18 20:35:08,602 INFO L87 Difference]: Start difference. First operand 87 states and 108 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 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) [2022-11-18 20:35:08,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:08,926 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2022-11-18 20:35:08,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:35:08,927 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-18 20:35:08,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:08,928 INFO L225 Difference]: With dead ends: 129 [2022-11-18 20:35:08,928 INFO L226 Difference]: Without dead ends: 107 [2022-11-18 20:35:08,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=93, Invalid=251, Unknown=2, NotChecked=34, Total=380 [2022-11-18 20:35:08,930 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 103 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:08,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 165 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 211 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-18 20:35:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-18 20:35:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 79. [2022-11-18 20:35:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.1666666666666667) internal successors, (91), 78 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) [2022-11-18 20:35:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2022-11-18 20:35:08,951 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 35 [2022-11-18 20:35:08,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:08,951 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2022-11-18 20:35:08,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 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) [2022-11-18 20:35:08,952 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2022-11-18 20:35:08,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 20:35:08,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:08,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:08,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:09,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:35:09,158 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:09,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:09,159 INFO L85 PathProgramCache]: Analyzing trace with hash 651947656, now seen corresponding path program 5 times [2022-11-18 20:35:09,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:09,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711796337] [2022-11-18 20:35:09,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:09,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:35:11,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:11,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711796337] [2022-11-18 20:35:11,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711796337] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:11,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154877838] [2022-11-18 20:35:11,500 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:35:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:11,501 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:11,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:35:11,659 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-11-18 20:35:11,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:11,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-18 20:35:11,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:11,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:35:11,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:35:11,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:35:11,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-18 20:35:12,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 20:35:12,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:12,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-11-18 20:35:12,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:12,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2022-11-18 20:35:12,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:12,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 51 [2022-11-18 20:35:13,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:13,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:13,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:13,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 52 [2022-11-18 20:35:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:35:13,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:35:17,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154877838] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:17,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:17,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 19] total 53 [2022-11-18 20:35:17,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835840211] [2022-11-18 20:35:17,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:17,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 20:35:17,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 20:35:17,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=2432, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 20:35:17,783 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 53 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 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) [2022-11-18 20:35:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:19,995 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2022-11-18 20:35:19,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:35:19,996 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 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) Word has length 35 [2022-11-18 20:35:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:19,997 INFO L225 Difference]: With dead ends: 118 [2022-11-18 20:35:19,997 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 20:35:19,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=450, Invalid=3710, Unknown=0, NotChecked=0, Total=4160 [2022-11-18 20:35:19,999 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 191 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:20,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 129 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 254 Invalid, 0 Unknown, 191 Unchecked, 0.3s Time] [2022-11-18 20:35:20,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 20:35:20,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2022-11-18 20:35:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 98 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2022-11-18 20:35:20,038 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 35 [2022-11-18 20:35:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:20,038 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2022-11-18 20:35:20,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 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) [2022-11-18 20:35:20,039 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2022-11-18 20:35:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-18 20:35:20,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:20,040 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:20,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:20,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:20,246 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1015472054, now seen corresponding path program 6 times [2022-11-18 20:35:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:20,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47217825] [2022-11-18 20:35:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:20,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 20:35:20,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:20,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47217825] [2022-11-18 20:35:20,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47217825] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:20,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886244407] [2022-11-18 20:35:20,455 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:35:20,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:20,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:20,457 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:20,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:35:20,596 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-18 20:35:20,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:20,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:35:20,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 20:35:20,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 20:35:20,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886244407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:20,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:20,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2022-11-18 20:35:20,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606306101] [2022-11-18 20:35:20,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:20,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:35:20,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:35:20,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:35:20,858 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2022-11-18 20:35:21,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:21,501 INFO L93 Difference]: Finished difference Result 187 states and 209 transitions. [2022-11-18 20:35:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:35:21,502 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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 37 [2022-11-18 20:35:21,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:21,503 INFO L225 Difference]: With dead ends: 187 [2022-11-18 20:35:21,503 INFO L226 Difference]: Without dead ends: 144 [2022-11-18 20:35:21,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 60 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:35:21,505 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 157 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:21,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 198 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:35:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-18 20:35:21,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 99. [2022-11-18 20:35:21,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 98 states have internal predecessors, (112), 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) [2022-11-18 20:35:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2022-11-18 20:35:21,534 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 37 [2022-11-18 20:35:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:21,534 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2022-11-18 20:35:21,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2022-11-18 20:35:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2022-11-18 20:35:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 20:35:21,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:21,535 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:21,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:21,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:35:21,739 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:21,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:21,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1487374188, now seen corresponding path program 7 times [2022-11-18 20:35:21,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:21,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269646005] [2022-11-18 20:35:21,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:21,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 20:35:24,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:24,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269646005] [2022-11-18 20:35:24,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269646005] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:24,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540066128] [2022-11-18 20:35:24,865 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:35:24,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:24,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:24,866 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:24,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:35:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:24,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-18 20:35:24,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:25,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:35:25,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:35:25,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:35:25,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 20:35:25,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 20:35:25,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:25,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2022-11-18 20:35:25,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:25,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2022-11-18 20:35:26,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 60 [2022-11-18 20:35:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:26,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-11-18 20:35:26,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:26,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:26,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 74 [2022-11-18 20:35:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:27,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:35:27,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 80 [2022-11-18 20:35:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 20:35:27,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 20:35:32,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540066128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:32,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:32,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 21] total 57 [2022-11-18 20:35:32,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240409191] [2022-11-18 20:35:32,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:32,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-11-18 20:35:32,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:32,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-11-18 20:35:32,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2960, Unknown=0, NotChecked=0, Total=3192 [2022-11-18 20:35:32,578 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand has 57 states, 57 states have (on average 1.368421052631579) internal successors, (78), 57 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:36,743 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2022-11-18 20:35:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 20:35:36,744 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.368421052631579) internal successors, (78), 57 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-11-18 20:35:36,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:36,745 INFO L225 Difference]: With dead ends: 133 [2022-11-18 20:35:36,746 INFO L226 Difference]: Without dead ends: 115 [2022-11-18 20:35:36,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1198 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=289, Invalid=3617, Unknown=0, NotChecked=0, Total=3906 [2022-11-18 20:35:36,748 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 152 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:36,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 198 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1013 Invalid, 0 Unknown, 152 Unchecked, 3.1s Time] [2022-11-18 20:35:36,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-18 20:35:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2022-11-18 20:35:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.1388888888888888) internal successors, (123), 108 states have internal predecessors, (123), 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) [2022-11-18 20:35:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2022-11-18 20:35:36,782 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 42 [2022-11-18 20:35:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:36,782 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2022-11-18 20:35:36,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.368421052631579) internal successors, (78), 57 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2022-11-18 20:35:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 20:35:36,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:36,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:36,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:36,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:35:36,991 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:36,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2085827890, now seen corresponding path program 2 times [2022-11-18 20:35:36,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:36,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659677382] [2022-11-18 20:35:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:36,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:38,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:38,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659677382] [2022-11-18 20:35:38,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659677382] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:38,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960078530] [2022-11-18 20:35:38,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:35:38,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:38,618 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:38,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:35:38,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:35:38,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:38,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-18 20:35:38,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:38,946 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-18 20:35:39,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:39,029 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-18 20:35:39,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:39,049 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-18 20:35:39,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:39,072 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-18 20:35:39,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:39,178 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 24 [2022-11-18 20:35:39,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:35:39,244 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 24 [2022-11-18 20:35:39,292 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 49 treesize of output 21 [2022-11-18 20:35:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:35:39,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:40,069 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_722 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_722) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 1)) is different from false [2022-11-18 20:35:40,104 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:35:40,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2022-11-18 20:35:40,116 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:35:40,116 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 34 [2022-11-18 20:35:40,129 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-18 20:35:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 10 not checked. [2022-11-18 20:35:40,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960078530] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:40,274 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:40,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16, 17] total 43 [2022-11-18 20:35:40,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481192900] [2022-11-18 20:35:40,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:40,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-18 20:35:40,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:40,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-18 20:35:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1549, Unknown=1, NotChecked=80, Total=1806 [2022-11-18 20:35:40,277 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 43 states, 43 states have (on average 2.4651162790697674) internal successors, (106), 43 states have internal predecessors, (106), 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) [2022-11-18 20:35:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:43,505 INFO L93 Difference]: Finished difference Result 189 states and 208 transitions. [2022-11-18 20:35:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-18 20:35:43,506 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.4651162790697674) internal successors, (106), 43 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-18 20:35:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:43,507 INFO L225 Difference]: With dead ends: 189 [2022-11-18 20:35:43,507 INFO L226 Difference]: Without dead ends: 187 [2022-11-18 20:35:43,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 69 SyntacticMatches, 18 SemanticMatches, 75 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1944 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=574, Invalid=5129, Unknown=1, NotChecked=148, Total=5852 [2022-11-18 20:35:43,511 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 295 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 214 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:43,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 274 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 757 Invalid, 0 Unknown, 214 Unchecked, 0.8s Time] [2022-11-18 20:35:43,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-18 20:35:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 125. [2022-11-18 20:35:43,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.1451612903225807) internal successors, (142), 124 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) [2022-11-18 20:35:43,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2022-11-18 20:35:43,541 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 43 [2022-11-18 20:35:43,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:43,542 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2022-11-18 20:35:43,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.4651162790697674) internal successors, (106), 43 states have internal predecessors, (106), 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) [2022-11-18 20:35:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2022-11-18 20:35:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 20:35:43,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:43,543 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:43,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:43,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:35:43,743 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:43,744 INFO L85 PathProgramCache]: Analyzing trace with hash -93497336, now seen corresponding path program 3 times [2022-11-18 20:35:43,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:43,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467277045] [2022-11-18 20:35:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:43,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 20:35:43,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:43,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467277045] [2022-11-18 20:35:43,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467277045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:43,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317728911] [2022-11-18 20:35:43,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:35:43,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:43,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:43,938 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:43,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:35:44,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-18 20:35:44,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:44,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:35:44,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 20:35:44,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 20:35:44,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317728911] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:44,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:44,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2022-11-18 20:35:44,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621046506] [2022-11-18 20:35:44,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:44,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:35:44,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:44,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:35:44,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:35:44,374 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2022-11-18 20:35:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:44,757 INFO L93 Difference]: Finished difference Result 229 states and 255 transitions. [2022-11-18 20:35:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:35:44,758 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-18 20:35:44,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:44,759 INFO L225 Difference]: With dead ends: 229 [2022-11-18 20:35:44,759 INFO L226 Difference]: Without dead ends: 122 [2022-11-18 20:35:44,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 72 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:35:44,760 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 141 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:44,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 83 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:35:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-18 20:35:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 95. [2022-11-18 20:35:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.127659574468085) internal successors, (106), 94 states have internal predecessors, (106), 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) [2022-11-18 20:35:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2022-11-18 20:35:44,788 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 43 [2022-11-18 20:35:44,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:44,789 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2022-11-18 20:35:44,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2022-11-18 20:35:44,789 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2022-11-18 20:35:44,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:35:44,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:44,795 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:44,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:44,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:35:44,999 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:44,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1201678254, now seen corresponding path program 8 times [2022-11-18 20:35:44,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:44,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986850] [2022-11-18 20:35:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:45,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:35:45,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986850] [2022-11-18 20:35:45,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986850] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576821390] [2022-11-18 20:35:45,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:35:45,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:45,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:45,203 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:45,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 20:35:45,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:35:45,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:45,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:35:45,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:35:45,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:35:45,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576821390] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:45,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:45,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2022-11-18 20:35:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942699505] [2022-11-18 20:35:45,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:35:45,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:35:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:35:45,606 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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) [2022-11-18 20:35:45,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:45,991 INFO L93 Difference]: Finished difference Result 249 states and 273 transitions. [2022-11-18 20:35:45,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:35:45,992 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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 [2022-11-18 20:35:45,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:45,993 INFO L225 Difference]: With dead ends: 249 [2022-11-18 20:35:45,993 INFO L226 Difference]: Without dead ends: 188 [2022-11-18 20:35:45,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 71 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:35:45,994 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 264 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:45,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 117 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:35:45,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-18 20:35:46,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 144. [2022-11-18 20:35:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.118881118881119) internal successors, (160), 143 states have internal predecessors, (160), 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) [2022-11-18 20:35:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 160 transitions. [2022-11-18 20:35:46,027 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 160 transitions. Word has length 44 [2022-11-18 20:35:46,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:46,028 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 160 transitions. [2022-11-18 20:35:46,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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) [2022-11-18 20:35:46,028 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 160 transitions. [2022-11-18 20:35:46,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:35:46,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:46,028 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:46,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:46,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:46,229 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:46,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:46,229 INFO L85 PathProgramCache]: Analyzing trace with hash -497669998, now seen corresponding path program 9 times [2022-11-18 20:35:46,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:46,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375781843] [2022-11-18 20:35:46,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:46,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:46,448 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:35:46,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:46,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375781843] [2022-11-18 20:35:46,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375781843] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:46,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231937626] [2022-11-18 20:35:46,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:35:46,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:46,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:46,450 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:46,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 20:35:46,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-18 20:35:46,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:46,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:35:46,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 20:35:46,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:35:47,032 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 20:35:47,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231937626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:35:47,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:35:47,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2022-11-18 20:35:47,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411936391] [2022-11-18 20:35:47,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:35:47,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:35:47,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:35:47,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:35:47,034 INFO L87 Difference]: Start difference. First operand 144 states and 160 transitions. Second operand has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:47,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:47,691 INFO L93 Difference]: Finished difference Result 207 states and 221 transitions. [2022-11-18 20:35:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:35:47,691 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-18 20:35:47,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:35:47,692 INFO L225 Difference]: With dead ends: 207 [2022-11-18 20:35:47,692 INFO L226 Difference]: Without dead ends: 154 [2022-11-18 20:35:47,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 71 SyntacticMatches, 10 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2022-11-18 20:35:47,693 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 230 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:35:47,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 213 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:35:47,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-18 20:35:47,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 119. [2022-11-18 20:35:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.0847457627118644) internal successors, (128), 118 states have internal predecessors, (128), 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) [2022-11-18 20:35:47,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 128 transitions. [2022-11-18 20:35:47,725 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 128 transitions. Word has length 44 [2022-11-18 20:35:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:35:47,725 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 128 transitions. [2022-11-18 20:35:47,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 128 transitions. [2022-11-18 20:35:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-18 20:35:47,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:35:47,726 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:47,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:47,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:47,931 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:35:47,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:47,931 INFO L85 PathProgramCache]: Analyzing trace with hash 887809550, now seen corresponding path program 4 times [2022-11-18 20:35:47,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:47,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125048986] [2022-11-18 20:35:47,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:47,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:35:49,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:49,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125048986] [2022-11-18 20:35:49,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125048986] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:35:49,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424242753] [2022-11-18 20:35:49,546 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:35:49,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:35:49,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:49,548 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:35:49,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 20:35:49,675 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:35:49,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:35:49,678 WARN L261 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-18 20:35:49,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:49,689 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 20:35:49,743 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:35:49,777 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:35:49,816 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:35:49,860 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:35:50,151 INFO L321 Elim1Store]: treesize reduction 28, result has 48.1 percent of original size [2022-11-18 20:35:50,151 INFO L350 Elim1Store]: Elim1 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 24 treesize of output 37 [2022-11-18 20:35:50,448 INFO L321 Elim1Store]: treesize reduction 28, result has 48.1 percent of original size [2022-11-18 20:35:50,449 INFO L350 Elim1Store]: Elim1 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 69 treesize of output 82 [2022-11-18 20:35:50,672 INFO L321 Elim1Store]: treesize reduction 28, result has 48.1 percent of original size [2022-11-18 20:35:50,672 INFO L350 Elim1Store]: Elim1 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 69 treesize of output 82 [2022-11-18 20:35:50,902 INFO L321 Elim1Store]: treesize reduction 28, result has 48.1 percent of original size [2022-11-18 20:35:50,902 INFO L350 Elim1Store]: Elim1 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 69 treesize of output 82 [2022-11-18 20:35:51,112 INFO L321 Elim1Store]: treesize reduction 28, result has 48.1 percent of original size [2022-11-18 20:35:51,113 INFO L350 Elim1Store]: Elim1 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 69 treesize of output 82 [2022-11-18 20:35:52,059 INFO L321 Elim1Store]: treesize reduction 65, result has 52.6 percent of original size [2022-11-18 20:35:52,060 INFO L350 Elim1Store]: Elim1 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 90 treesize of output 136 [2022-11-18 20:35:52,924 INFO L321 Elim1Store]: treesize reduction 84, result has 40.8 percent of original size [2022-11-18 20:35:52,926 INFO L350 Elim1Store]: Elim1 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 81 treesize of output 106 [2022-11-18 20:35:53,479 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-18 20:35:53,480 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-18 20:35:53,587 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-18 20:35:53,588 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-18 20:35:53,695 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-18 20:35:53,695 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-18 20:35:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 14 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:53,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:36:00,790 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 63 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:36:00,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424242753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:36:00,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:36:00,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 31, 31] total 77 [2022-11-18 20:36:00,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068797968] [2022-11-18 20:36:00,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:36:00,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-11-18 20:36:00,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:00,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-11-18 20:36:00,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=588, Invalid=5264, Unknown=0, NotChecked=0, Total=5852 [2022-11-18 20:36:00,795 INFO L87 Difference]: Start difference. First operand 119 states and 128 transitions. Second operand has 77 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 77 states have internal predecessors, (123), 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) [2022-11-18 20:36:04,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:04,864 INFO L93 Difference]: Finished difference Result 161 states and 174 transitions. [2022-11-18 20:36:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-18 20:36:04,866 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 77 states have internal predecessors, (123), 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 49 [2022-11-18 20:36:04,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:36:04,866 INFO L225 Difference]: With dead ends: 161 [2022-11-18 20:36:04,867 INFO L226 Difference]: Without dead ends: 159 [2022-11-18 20:36:04,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 57 SyntacticMatches, 12 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3528 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=1462, Invalid=10094, Unknown=0, NotChecked=0, Total=11556 [2022-11-18 20:36:04,870 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 133 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 552 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:36:04,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 351 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 438 Invalid, 0 Unknown, 552 Unchecked, 0.4s Time] [2022-11-18 20:36:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-18 20:36:04,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 120. [2022-11-18 20:36:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.0756302521008403) internal successors, (128), 119 states have internal predecessors, (128), 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) [2022-11-18 20:36:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 128 transitions. [2022-11-18 20:36:04,907 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 128 transitions. Word has length 49 [2022-11-18 20:36:04,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:36:04,907 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 128 transitions. [2022-11-18 20:36:04,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 77 states have internal predecessors, (123), 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) [2022-11-18 20:36:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 128 transitions. [2022-11-18 20:36:04,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-18 20:36:04,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:36:04,908 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:04,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-11-18 20:36:05,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:36:05,109 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:36:05,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:05,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1027028208, now seen corresponding path program 10 times [2022-11-18 20:36:05,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:05,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153258636] [2022-11-18 20:36:05,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:05,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 9 proven. 50 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 20:36:09,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:09,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153258636] [2022-11-18 20:36:09,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153258636] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:36:09,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212208110] [2022-11-18 20:36:09,497 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:36:09,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:36:09,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:36:09,501 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:36:09,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 20:36:09,671 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:36:09,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:36:09,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-18 20:36:09,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:36:09,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:36:09,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:36:09,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:36:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 20:36:09,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-18 20:36:09,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-18 20:36:09,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:09,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 62 [2022-11-18 20:36:10,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:36:10,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2022-11-18 20:36:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 75 [2022-11-18 20:36:10,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:36:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:10,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 84 [2022-11-18 20:36:11,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:36:11,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 91 [2022-11-18 20:36:11,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:11,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 93 [2022-11-18 20:36:12,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:12,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:12,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:12,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:12,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:12,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:12,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:12,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:36:12,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 91 [2022-11-18 20:36:12,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:36:12,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 73 [2022-11-18 20:36:13,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:13,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:36:13,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:36:13,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 58 [2022-11-18 20:36:13,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:36:13,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 38 [2022-11-18 20:36:13,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-11-18 20:36:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 9 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:13,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:36:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 9 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:31,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212208110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:36:31,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:36:31,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 36, 35] total 79 [2022-11-18 20:36:31,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003104533] [2022-11-18 20:36:31,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:36:31,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-11-18 20:36:31,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-11-18 20:36:31,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=936, Invalid=5226, Unknown=0, NotChecked=0, Total=6162 [2022-11-18 20:36:31,841 INFO L87 Difference]: Start difference. First operand 120 states and 128 transitions. Second operand has 79 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 79 states have internal predecessors, (104), 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) [2022-11-18 20:36:33,957 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse70 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse40 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse110 (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse100 (store .cse40 .cse110 1)) (.cse109 (+ .cse70 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse108 (store .cse40 (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse78 (store .cse108 .cse110 1)) (.cse60 (store .cse100 .cse109 1)) (.cse52 (+ .cse70 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse69 (store .cse60 .cse52 1)) (.cse51 (store .cse78 .cse109 1)) (.cse39 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse26 (let ((.cse101 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse108))) (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse102 (select .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse102 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse103 (select .cse108 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse107 (select .cse102 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse105 (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse102 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse103 .cse107))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse104 (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse102 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse103 .cse105 .cse107))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse106 (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse102 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse103 .cse104 .cse105 .cse107))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse102 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse103 .cse104 .cse105 .cse106 .cse107))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse103 .cse104 .cse105 .cse106 .cse107)))))))))) (.cse30 (let ((.cse93 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse100))) (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse94 (select .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse94 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse95 (select .cse94 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse96 (select .cse100 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse98 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse94 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse95 .cse96))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse99 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse94 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse95 .cse96 .cse98))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse97 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse94 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse95 .cse96 .cse98 .cse99))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse95 .cse96 .cse97 .cse98 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse94 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse95 .cse96 .cse97 .cse98 .cse99))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse99)))))))))) (.cse41 (let ((.cse86 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51))) (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse87 (select .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse89 (select .cse87 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse90 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse92 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse89 .cse90))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse91 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse89 .cse90 .cse92))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse88 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse89 .cse90 .cse91 .cse92))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse88 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse88 .cse89 .cse90 .cse91 .cse92))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse89 .cse90 .cse91 .cse92)))))))))) (.cse21 (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse69))) (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse80 (select .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse81 (select .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse83 (select .cse69 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse82 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse81 .cse83))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse84 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse85 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse81 .cse82 .cse83 .cse84))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse81 .cse82 .cse83 .cse84 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse81 .cse82 .cse83 .cse84 .cse85))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse85)))))))))) (.cse0 (let ((.cse71 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse78))) (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse72 (select .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse73 (select .cse78 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse74 (select .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse77 (select (select (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse76 (select (select (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse77))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse75 (select (select (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse76 .cse77))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse73 (select (select (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse74 .cse75 .cse76 .cse77)))))))))) (.cse9 (let ((.cse68 (store .cse69 (+ .cse70 16 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse61 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse68))) (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse62 (select .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse64 (select .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse67 (select .cse68 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse65 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse63 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse65 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse66 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse63 .cse64 .cse65 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse63 .cse64 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse63 .cse64 .cse65 .cse66 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse65 .cse66 .cse67))))))))))) (.cse13 (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse60))) (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse54 (select .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse56 (select .cse60 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse57 (select .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse55 (select (select (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse56 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse58 (select (select (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse59 (select (select (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57 .cse58))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse55 (select (select (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse55 .cse56 .cse57 .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse56 .cse57 .cse58 .cse59)))))))))) (.cse17 (let ((.cse50 (store .cse51 .cse52 1))) (let ((.cse43 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse50))) (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse44 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse46 (select .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse47 (select .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse49 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse46 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse45 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse46 .cse47 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse48 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse47 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse45 .cse46 .cse47 .cse48 .cse49 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39))))))))))))) (let ((.cse18 (select .cse17 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse14 (select .cse13 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (< 0 |c_ULTIMATE.start_main_~i~0#1|)) (.cse10 (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse11 (< |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse29 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse15 (+ |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse19 (< |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse20 (< 1 |c_ULTIMATE.start_main_~i~0#1|)) (.cse22 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse23 (+ 5 |c_ULTIMATE.start_main_~i~0#1|)) (.cse42 (select .cse41 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse12 (< |c_ULTIMATE.start_main_~i~0#1| 2)) (.cse16 (< 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse6 (< 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse31 (select .cse30 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse7 (< |c_ULTIMATE.start_main_~i~0#1| 3)) (.cse25 (< |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse27 (select .cse26 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse24 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse28 (< 4 |c_ULTIMATE.start_main_~i~0#1|))) (and (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse5)) .cse6 .cse7) (or .cse8 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse10 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ 6 |c_ULTIMATE.start_main_~i~0#1|))) .cse11) (or .cse12 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse15)) .cse16) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse5 (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse19 .cse20) (or .cse19 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse5 (select (select (store .cse21 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse20) (or .cse19 .cse20 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse17 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse23))) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse24 (select (select (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse12 .cse16) (or .cse8 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse15 (select (select (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse10 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse11) (or .cse25 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< |c_ULTIMATE.start_main_~i~0#1| (select (select (store .cse26 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse28) (or .cse6 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse31 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse7) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse29 (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse6 .cse7) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (= c_~N~0 (select (select (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse33 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse34 (select .cse33 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse38 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse37 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse37 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse36 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse35 .cse37 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse34 .cse35 .cse36 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse35 .cse36 .cse37 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse39) .cse37 .cse38)))))))))) (store .cse32 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select .cse32 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130))) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (not (< 4 c_~N~0)) (< 5 c_~N~0)) (or .cse12 .cse16 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse41 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse15))) (or .cse19 .cse20 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse21 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse23))) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse24 (select (select (store .cse41 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse12 .cse16) (or .cse6 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse30 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse31 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse5)) .cse7) (or .cse25 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse26 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse24)) .cse28))))))))) is different from true [2022-11-18 20:36:36,005 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse48 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse63 (store .cse30 (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset| 4) 1))) (let ((.cse38 (store .cse63 (+ .cse48 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse47 (store .cse38 (+ .cse48 12 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (.cse29 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse19 (let ((.cse56 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse63))) (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse57 (select .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse58 (select .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse59 (select .cse63 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse61 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse62 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (let ((.cse60 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse58 .cse59 .cse60 .cse61 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse60 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse29) .cse62)))))))))) (.cse14 (let ((.cse49 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse47))) (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse50 (select .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse51 (select .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse53 (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse52 (select (select (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse53))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse54 (select (select (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52 .cse53))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (let ((.cse55 (select (select (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52 .cse53 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse51 .cse52 .cse53 .cse54 (select (select (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52 .cse53 .cse54 .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse29) .cse55)))))))))) (.cse1 (let ((.cse46 (store .cse47 (+ .cse48 16 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse46))) (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse42 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse45 (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse43 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse45))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse41 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse43 .cse45))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (let ((.cse44 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse41 .cse42 .cse43 .cse45))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse41 .cse42 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse41 .cse42 .cse43 .cse44 .cse45))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse29) .cse43 .cse44 .cse45))))))))))) (.cse8 (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse38))) (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse34 (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse35 (select .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse33 (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse36 (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse33 .cse34 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (let ((.cse37 (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse33 .cse34 .cse35 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse33 (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse33 .cse34 .cse35 .cse36 .cse37))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse29) .cse34 .cse35 .cse36 .cse37))))))))))) (let ((.cse9 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (< |c_ULTIMATE.start_main_~i~0#1| 2)) (.cse11 (< 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse0 (< 0 |c_ULTIMATE.start_main_~i~0#1|)) (.cse10 (+ |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse2 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (< |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse18 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse12 (< |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse16 (< 1 |c_ULTIMATE.start_main_~i~0#1|)) (.cse15 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse17 (< 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse20 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse13 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse21 (< |c_ULTIMATE.start_main_~i~0#1| 3))) (and (or .cse0 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ 6 |c_ULTIMATE.start_main_~i~0#1|))) .cse6) (or .cse7 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse10)) .cse11) (or .cse12 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse13 (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse15 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse16) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse7 .cse11) (or .cse0 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse10 (select (select (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse6) (or .cse17 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse21) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (= c_~N~0 (select (select (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse23 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse23 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse24 (select .cse23 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse28 (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse23 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse23 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (let ((.cse26 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse23 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse24 .cse25 .cse26 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse23 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse26 .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse29) .cse27 .cse28)))))))))) (store .cse22 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select .cse22 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130))) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (< .cse18 c_~N~0) (not (< 4 c_~N~0)) (< 5 c_~N~0)) (or .cse12 .cse16 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse15 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ 5 |c_ULTIMATE.start_main_~i~0#1|)))) (or .cse17 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse19 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse3 v_ArrVal_1126) .cse4 v_ArrVal_1128) .cse5 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse13)) .cse21)))))))) is different from true [2022-11-18 20:36:38,046 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse39 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse62 (store .cse24 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse47 (store .cse62 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| 4) 1))) (let ((.cse38 (store .cse47 (+ .cse39 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (.cse23 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse13 (let ((.cse55 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse62))) (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse57 (select .cse62 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse61 (select .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse59 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse58 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse59 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse60 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse58 .cse59 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse58 .cse59 .cse60 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23) .cse57 .cse58 .cse59 .cse60 .cse61)))))))))) (.cse27 (let ((.cse48 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse38))) (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse49 (select .cse48 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse51 (select .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse52 (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse54 (select (select (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse53 (select (select (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse50 (select (select (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52 .cse53 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse50 (select (select (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse50 .cse51 .cse52 .cse53 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23) .cse51 .cse52 .cse53 .cse54)))))))))) (.cse0 (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse47))) (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse42 (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse43 (select .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse46 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse43))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse45 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse43 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse44 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse43 .cse45 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse42 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse43 .cse44 .cse45 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23) .cse43 .cse44 .cse45 .cse46)))))))))) (.cse8 (let ((.cse37 (store .cse38 (+ .cse39 12 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse37))) (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse33 (select .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse34 (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse36 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse33 .cse34))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse32 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse33 .cse34 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse35 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse34 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse32 .cse33 .cse34 .cse35 .cse36 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse34 .cse35 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23))))))))))))) (let ((.cse5 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse10 (< |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse11 (< 1 |c_ULTIMATE.start_main_~i~0#1|)) (.cse9 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (< 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse7 (< |c_ULTIMATE.start_main_~i~0#1| 3)) (.cse28 (select .cse27 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse25 (< |c_ULTIMATE.start_main_~i~0#1| 2)) (.cse26 (< 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse12 (< |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse14 (select .cse13 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse29 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse15 (< 4 |c_ULTIMATE.start_main_~i~0#1|))) (and (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse5)) .cse6 .cse7) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse5 (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse10 .cse11) (or .cse10 .cse11 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ 5 |c_ULTIMATE.start_main_~i~0#1|)))) (or .cse12 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< |c_ULTIMATE.start_main_~i~0#1| (select (select (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse15) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (= c_~N~0 (select (select (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse18 (select .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse22 (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse21 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse19 .cse21 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse18 .cse19 .cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse19 .cse20 .cse21 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23) .cse21 .cse22)))))))))) (store .cse16 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select .cse16 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130))) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0) (not (< 4 c_~N~0)) (< 5 c_~N~0)) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse6 .cse7) (or .cse25 .cse26 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse27 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ |c_ULTIMATE.start_main_~i~0#1| 4)))) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse29 (select (select (store .cse27 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse25 .cse26) (or .cse12 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse29)) .cse15)))))))) is different from true [2022-11-18 20:36:45,919 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse19 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse41 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse49 (store .cse19 (+ .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse32 (store .cse49 (+ .cse41 |c_ULTIMATE.start_main_~a~0#1.offset| 4) 1)) (.cse18 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse8 (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse49))) (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse43 (select .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse44 (select .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse48 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse46 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse48))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse45 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse46 .cse48))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse47 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse45 .cse46 .cse48))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse45 .cse46 .cse47 .cse48))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18) .cse44 .cse45 .cse46 .cse47 .cse48)))))))))) (.cse22 (let ((.cse40 (store .cse32 (+ .cse41 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse33 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse40))) (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse34 (select .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse36 (select .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse37 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse39 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 .cse37))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse38 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 .cse37 .cse39))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse35 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 .cse37 .cse38 .cse39))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse35 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse36 .cse37 .cse38 .cse39))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18) .cse36 .cse37 .cse38 .cse39))))))))))) (.cse0 (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse32))) (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse26 (select .cse25 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse27 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse28 (select .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse31 (select (select (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse30 (select (select (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse28 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse29 (select (select (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse28 .cse30 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse27 (select (select (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse28 .cse29 .cse30 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18) .cse28 .cse29 .cse30 .cse31))))))))))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (< 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse6 (< |c_ULTIMATE.start_main_~i~0#1| 3)) (.cse23 (select .cse22 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse20 (< |c_ULTIMATE.start_main_~i~0#1| 2)) (.cse21 (< 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse7 (< |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse9 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse24 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse10 (< 4 |c_ULTIMATE.start_main_~i~0#1|))) (and (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ 3 |c_ULTIMATE.start_main_~i~0#1|))) .cse5 .cse6) (or .cse7 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< |c_ULTIMATE.start_main_~i~0#1| (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse10) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (= c_~N~0 (select (select (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse13 (select .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse17 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse16 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 .cse17))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse14 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 .cse16 .cse17))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (let ((.cse15 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 .cse14 .cse16 .cse17))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (+ .cse13 .cse14 .cse15 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 .cse14 .cse15 .cse16 .cse17))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18) .cse16 .cse17)))))))))) (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130))) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0) (not (< 4 c_~N~0)) (< 5 c_~N~0)) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse5 .cse6) (or .cse20 .cse21 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse22 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse23 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ |c_ULTIMATE.start_main_~i~0#1| 4)))) (or (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< .cse24 (select (select (store .cse22 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse23 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) .cse20 .cse21) (or .cse7 (forall ((v_ArrVal_1130 Int) (v_ArrVal_1125 Int) (v_ArrVal_1126 Int) (v_ArrVal_1128 Int)) (< (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1125) .cse2 v_ArrVal_1126) .cse3 v_ArrVal_1128) .cse4 v_ArrVal_1130)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse24)) .cse10))))))) is different from true [2022-11-18 20:37:00,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:37:00,861 INFO L93 Difference]: Finished difference Result 189 states and 211 transitions. [2022-11-18 20:37:00,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-18 20:37:00,862 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 79 states have internal predecessors, (104), 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 49 [2022-11-18 20:37:00,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:37:00,863 INFO L225 Difference]: With dead ends: 189 [2022-11-18 20:37:00,863 INFO L226 Difference]: Without dead ends: 168 [2022-11-18 20:37:00,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 44 SyntacticMatches, 8 SemanticMatches, 96 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 3149 ImplicationChecksByTransitivity, 49.1s TimeCoverageRelationStatistics Valid=1367, Invalid=7387, Unknown=4, NotChecked=748, Total=9506 [2022-11-18 20:37:00,864 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 306 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:37:00,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 215 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 306 Unchecked, 0.1s Time] [2022-11-18 20:37:00,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-18 20:37:00,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 165. [2022-11-18 20:37:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.1219512195121952) internal successors, (184), 164 states have internal predecessors, (184), 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) [2022-11-18 20:37:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 184 transitions. [2022-11-18 20:37:00,916 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 184 transitions. Word has length 49 [2022-11-18 20:37:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:37:00,917 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 184 transitions. [2022-11-18 20:37:00,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 79 states have internal predecessors, (104), 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) [2022-11-18 20:37:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 184 transitions. [2022-11-18 20:37:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-18 20:37:00,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:37:00,918 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:00,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:37:01,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:01,124 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:37:01,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:01,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1656864196, now seen corresponding path program 3 times [2022-11-18 20:37:01,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:01,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115914595] [2022-11-18 20:37:01,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:01,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:37:03,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:03,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115914595] [2022-11-18 20:37:03,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115914595] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:37:03,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312164707] [2022-11-18 20:37:03,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:37:03,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:37:03,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:37:03,226 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:37:03,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 20:37:03,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-18 20:37:03,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:37:03,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-18 20:37:03,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:37:03,703 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 20:37:03,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:37:03,996 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-18 20:37:03,997 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 30 [2022-11-18 20:37:04,220 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-18 20:37:04,220 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 34 [2022-11-18 20:37:04,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:04,618 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 22 [2022-11-18 20:37:04,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:04,662 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 22 [2022-11-18 20:37:04,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:04,704 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 22 [2022-11-18 20:37:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:04,754 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 22 [2022-11-18 20:37:04,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:04,797 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 22 [2022-11-18 20:37:05,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:05,012 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 28 [2022-11-18 20:37:05,125 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:37:05,130 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:37:05,130 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 39 treesize of output 35 [2022-11-18 20:37:05,329 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 31 [2022-11-18 20:37:05,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:05,479 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 28 [2022-11-18 20:37:05,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:37:05,725 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 24 [2022-11-18 20:37:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 1 proven. 77 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:37:05,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:38:09,651 INFO L321 Elim1Store]: treesize reduction 124, result has 43.9 percent of original size [2022-11-18 20:38:09,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 118 treesize of output 147 [2022-11-18 20:38:09,663 INFO L350 Elim1Store]: Elim1 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 178 treesize of output 168 [2022-11-18 20:38:09,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:38:09,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:38:09,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:38:09,703 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:38:09,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 114 [2022-11-18 20:38:09,801 INFO L350 Elim1Store]: Elim1 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 134 treesize of output 126 [2022-11-18 20:38:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 16 proven. 55 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 20:38:10,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312164707] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:38:10,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:38:10,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 26, 27] total 66 [2022-11-18 20:38:10,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355879469] [2022-11-18 20:38:10,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:38:10,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 20:38:10,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:10,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 20:38:10,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=3745, Unknown=37, NotChecked=0, Total=4290 [2022-11-18 20:38:10,048 INFO L87 Difference]: Start difference. First operand 165 states and 184 transitions. Second operand has 66 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 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) [2022-11-18 20:38:41,315 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1218 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_381| Int) (v_ArrVal_1223 Int) (v_ArrVal_1226 Int) (|v_ULTIMATE.start_main_~i~0#1_382| Int) (v_ArrVal_1228 Int) (v_ArrVal_1219 Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_382| 1) |v_ULTIMATE.start_main_~i~0#1_381|)) (not (< |v_ULTIMATE.start_main_~i~0#1_381| c_~N~0)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (select (store (store (store (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1218) |c_ULTIMATE.start_main_~a~0#1.base|))) (store (store .cse0 |c_ULTIMATE.start_main_~a~0#1.offset| v_ArrVal_1219) .cse1 (+ (- 1) (select .cse0 .cse1)))) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1223) (+ (* |v_ULTIMATE.start_main_~i~0#1_382| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1226) (+ (* |v_ULTIMATE.start_main_~i~0#1_381| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1228) .cse1)) 0) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_382|)))) (let ((.cse2 (<= (mod c_~N~0 4294967296) 536870911))) (or (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse2) (and (not .cse2) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0))))) is different from false [2022-11-18 20:38:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:38:51,860 INFO L93 Difference]: Finished difference Result 365 states and 403 transitions. [2022-11-18 20:38:51,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-18 20:38:51,860 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 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 53 [2022-11-18 20:38:51,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:38:51,866 INFO L225 Difference]: With dead ends: 365 [2022-11-18 20:38:51,867 INFO L226 Difference]: Without dead ends: 363 [2022-11-18 20:38:51,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 107 SyntacticMatches, 22 SemanticMatches, 122 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5381 ImplicationChecksByTransitivity, 105.1s TimeCoverageRelationStatistics Valid=1868, Invalid=13085, Unknown=57, NotChecked=242, Total=15252 [2022-11-18 20:38:51,869 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 511 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1014 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:38:51,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 311 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1099 Invalid, 0 Unknown, 1014 Unchecked, 1.3s Time] [2022-11-18 20:38:51,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-18 20:38:51,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 210. [2022-11-18 20:38:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.1196172248803828) internal successors, (234), 209 states have internal predecessors, (234), 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) [2022-11-18 20:38:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 234 transitions. [2022-11-18 20:38:51,938 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 234 transitions. Word has length 53 [2022-11-18 20:38:51,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:38:51,939 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 234 transitions. [2022-11-18 20:38:51,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 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) [2022-11-18 20:38:51,939 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 234 transitions. [2022-11-18 20:38:51,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-18 20:38:51,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:38:51,940 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:38:51,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:38:52,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:38:52,146 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:38:52,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:52,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1986418516, now seen corresponding path program 11 times [2022-11-18 20:38:52,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:52,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869549265] [2022-11-18 20:38:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:52,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:52,512 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 16 proven. 55 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 20:38:52,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:52,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869549265] [2022-11-18 20:38:52,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869549265] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:38:52,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586329917] [2022-11-18 20:38:52,513 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:38:52,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:38:52,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:38:52,515 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:38:52,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 20:38:53,793 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-18 20:38:53,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:38:53,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 20:38:53,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:38:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 25 proven. 46 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 20:38:54,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:38:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 25 proven. 46 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 20:38:54,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586329917] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:38:54,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:38:54,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2022-11-18 20:38:54,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962871575] [2022-11-18 20:38:54,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:38:54,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:38:54,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:54,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:38:54,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:38:54,225 INFO L87 Difference]: Start difference. First operand 210 states and 234 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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) [2022-11-18 20:38:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:38:55,215 INFO L93 Difference]: Finished difference Result 375 states and 409 transitions. [2022-11-18 20:38:55,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:38:55,215 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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 53 [2022-11-18 20:38:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:38:55,217 INFO L225 Difference]: With dead ends: 375 [2022-11-18 20:38:55,217 INFO L226 Difference]: Without dead ends: 291 [2022-11-18 20:38:55,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 93 SyntacticMatches, 12 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:38:55,218 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 218 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:38:55,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 267 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:38:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-11-18 20:38:55,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 208. [2022-11-18 20:38:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.0966183574879227) internal successors, (227), 207 states have internal predecessors, (227), 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) [2022-11-18 20:38:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 227 transitions. [2022-11-18 20:38:55,284 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 227 transitions. Word has length 53 [2022-11-18 20:38:55,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:38:55,284 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 227 transitions. [2022-11-18 20:38:55,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 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) [2022-11-18 20:38:55,284 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 227 transitions. [2022-11-18 20:38:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-18 20:38:55,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:38:55,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:38:55,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:38:55,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-18 20:38:55,485 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:38:55,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:55,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1511676874, now seen corresponding path program 4 times [2022-11-18 20:38:55,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:55,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498345785] [2022-11-18 20:38:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:55,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:01,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:01,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498345785] [2022-11-18 20:39:01,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498345785] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:39:01,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630006459] [2022-11-18 20:39:01,351 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:39:01,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:39:01,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:39:01,352 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:39:01,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0597e14-aecf-4627-9ca5-20ac4d691004/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 20:39:01,499 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:39:01,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:39:01,502 WARN L261 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 20:39:01,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:39:01,510 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 20:39:01,679 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:39:01,769 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:39:01,868 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:39:02,655 INFO L321 Elim1Store]: treesize reduction 101, result has 54.9 percent of original size [2022-11-18 20:39:02,656 INFO L350 Elim1Store]: Elim1 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 52 treesize of output 141 [2022-11-18 20:39:04,937 INFO L321 Elim1Store]: treesize reduction 696, result has 29.0 percent of original size [2022-11-18 20:39:04,937 INFO L350 Elim1Store]: Elim1 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 292 treesize of output 461 [2022-11-18 20:39:12,796 INFO L321 Elim1Store]: treesize reduction 775, result has 27.9 percent of original size [2022-11-18 20:39:12,797 INFO L350 Elim1Store]: Elim1 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 488 treesize of output 583 [2022-11-18 20:40:15,307 WARN L233 SmtUtils]: Spent 23.42s on a formula simplification. DAG size of input: 398 DAG size of output: 128 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:40:22,898 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 813 DAG size of output: 201 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 20:40:22,899 INFO L321 Elim1Store]: treesize reduction 2449, result has 21.4 percent of original size [2022-11-18 20:40:22,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 189 case distinctions, treesize of input 883 treesize of output 1181 [2022-11-18 20:48:16,715 WARN L233 SmtUtils]: Spent 11.38s on a formula simplification that was a NOOP. DAG size: 744 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)