./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_stack-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN --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 0a870e8a4a7dff1b238c9b19b47586f7abd44e3f0eb9969b7dad7bbd7f80e506 --- 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-6b4ec56 [2022-11-20 10:51:15,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:51:15,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:51:15,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:51:15,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:51:15,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:51:15,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:51:15,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:51:15,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:51:15,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:51:15,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:51:15,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:51:15,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:51:15,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:51:15,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:51:15,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:51:15,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:51:15,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:51:15,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:51:15,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:51:15,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:51:15,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:51:15,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:51:15,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:51:15,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:51:15,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:51:15,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:51:15,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:51:15,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:51:15,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:51:15,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:51:15,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:51:15,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:51:15,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:51:15,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:51:15,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:51:15,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:51:15,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:51:15,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:51:15,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:51:15,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:51:15,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:51:15,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:51:15,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:51:15,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:51:15,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:51:15,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:51:15,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:51:15,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:51:15,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:51:15,973 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:51:15,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:51:15,973 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:51:15,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:51:15,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:51:15,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:51:15,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:51:15,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:51:15,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:51:15,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:51:15,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:51:15,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:51:15,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:51:15,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:51:15,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:51:15,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:51:15,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:51:15,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:51:15,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:51:15,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:51:15,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:51:15,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:51:15,977 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:51:15,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:51:15,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:51:15,978 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_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a870e8a4a7dff1b238c9b19b47586f7abd44e3f0eb9969b7dad7bbd7f80e506 [2022-11-20 10:51:16,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:51:16,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:51:16,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:51:16,294 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:51:16,295 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:51:16,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-pthread/cs_stack-2.i [2022-11-20 10:51:19,404 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:51:19,671 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:51:19,682 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/sv-benchmarks/c/seq-pthread/cs_stack-2.i [2022-11-20 10:51:19,707 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/data/3b9933517/e34ea577233f433d9bb4dad50ca3787d/FLAG7a1ce754d [2022-11-20 10:51:19,722 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/data/3b9933517/e34ea577233f433d9bb4dad50ca3787d [2022-11-20 10:51:19,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:51:19,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:51:19,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:51:19,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:51:19,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:51:19,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:19" (1/1) ... [2022-11-20 10:51:19,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343394f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:19, skipping insertion in model container [2022-11-20 10:51:19,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:19" (1/1) ... [2022-11-20 10:51:19,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:51:19,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:51:20,280 WARN L237 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_b291e43d-63ef-4979-90fb-3239db645a36/sv-benchmarks/c/seq-pthread/cs_stack-2.i[34556,34569] [2022-11-20 10:51:20,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:20,430 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:51:20,467 WARN L237 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_b291e43d-63ef-4979-90fb-3239db645a36/sv-benchmarks/c/seq-pthread/cs_stack-2.i[34556,34569] [2022-11-20 10:51:20,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:20,694 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:51:20,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20 WrapperNode [2022-11-20 10:51:20,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:51:20,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:51:20,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:51:20,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:51:20,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,811 INFO L138 Inliner]: procedures = 252, calls = 268, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 601 [2022-11-20 10:51:20,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:51:20,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:51:20,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:51:20,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:51:20,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,856 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:51:20,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:51:20,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:51:20,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:51:20,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (1/1) ... [2022-11-20 10:51:20,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:51:20,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:51:20,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:51:20,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:51:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:51:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:51:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:51:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-11-20 10:51:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-11-20 10:51:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:51:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:51:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:51:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-11-20 10:51:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-11-20 10:51:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:51:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:51:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure get_top [2022-11-20 10:51:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure get_top [2022-11-20 10:51:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:51:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:51:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-11-20 10:51:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-11-20 10:51:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-11-20 10:51:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-11-20 10:51:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-20 10:51:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-20 10:51:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-20 10:51:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-20 10:51:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-11-20 10:51:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-11-20 10:51:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:51:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:51:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:51:21,216 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:51:21,218 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:51:21,304 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,304 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-20 10:51:21,329 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L930-1: assume 0 != ~__CS_ret~0 % 256; [2022-11-20 10:51:21,329 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L930-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,330 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,330 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256; [2022-11-20 10:51:21,330 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume 0 != ~__CS_ret~0 % 256; [2022-11-20 10:51:21,330 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,330 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,330 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != ~__CS_ret~0 % 256; [2022-11-20 10:51:21,331 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L930: SUMMARY for call __CS_cs(); srcloc: null [2022-11-20 10:51:21,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume 0 != ~__CS_ret~0 % 256;push_#res#1 := 0; [2022-11-20 10:51:21,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-11-20 10:51:21,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-11-20 10:51:21,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:21,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-11-20 10:51:21,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-11-20 10:51:21,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: assume !(0 != ~__CS_ret~0 % 256);pop_#res#1 := 0; [2022-11-20 10:51:21,739 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L986-4: SUMMARY for call __CS_cs(); srcloc: null [2022-11-20 10:51:21,739 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume 0 != ~__CS_ret~0 % 256;push_#res#1 := 0; [2022-11-20 10:51:21,739 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !(0 != ~__CS_ret~0 % 256); [2022-11-20 10:51:24,201 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:51:24,219 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:51:24,224 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:51:24,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:24 BoogieIcfgContainer [2022-11-20 10:51:24,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:51:24,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:51:24,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:51:24,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:51:24,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:51:19" (1/3) ... [2022-11-20 10:51:24,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8fae08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:24, skipping insertion in model container [2022-11-20 10:51:24,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:20" (2/3) ... [2022-11-20 10:51:24,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8fae08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:24, skipping insertion in model container [2022-11-20 10:51:24,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:24" (3/3) ... [2022-11-20 10:51:24,241 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stack-2.i [2022-11-20 10:51:24,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:51:24,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:51:24,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:51:24,350 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;@45b19111, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:51:24,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:51:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 134 states have (on average 1.5149253731343284) internal successors, (203), 137 states have internal predecessors, (203), 75 states have call successors, (75), 9 states have call predecessors, (75), 9 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-20 10:51:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 10:51:24,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:24,385 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:24,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:24,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash 726696115, now seen corresponding path program 1 times [2022-11-20 10:51:24,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:24,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101823917] [2022-11-20 10:51:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:24,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:51:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 10:51:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:51:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:51:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:51:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 10:51:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 10:51:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:51:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-20 10:51:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:51:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 10:51:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 10:51:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:51:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 10:51:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-20 10:51:37,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:37,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101823917] [2022-11-20 10:51:37,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101823917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:37,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:37,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:51:37,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874314438] [2022-11-20 10:51:37,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:37,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:51:37,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:37,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:51:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:51:37,773 INFO L87 Difference]: Start difference. First operand has 220 states, 134 states have (on average 1.5149253731343284) internal successors, (203), 137 states have internal predecessors, (203), 75 states have call successors, (75), 9 states have call predecessors, (75), 9 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:51:37,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:37,869 INFO L93 Difference]: Finished difference Result 436 states and 769 transitions. [2022-11-20 10:51:37,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:51:37,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-11-20 10:51:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:37,898 INFO L225 Difference]: With dead ends: 436 [2022-11-20 10:51:37,898 INFO L226 Difference]: Without dead ends: 216 [2022-11-20 10:51:37,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:51:37,909 INFO L413 NwaCegarLoop]: 349 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, 349 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 [2022-11-20 10:51:37,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:51:37,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-20 10:51:37,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-20 10:51:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 131 states have (on average 1.4885496183206106) internal successors, (195), 133 states have internal predecessors, (195), 75 states have call successors, (75), 9 states have call predecessors, (75), 9 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-20 10:51:38,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 345 transitions. [2022-11-20 10:51:38,006 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 345 transitions. Word has length 94 [2022-11-20 10:51:38,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:38,007 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 345 transitions. [2022-11-20 10:51:38,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:51:38,007 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 345 transitions. [2022-11-20 10:51:38,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 10:51:38,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:38,023 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:38,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:51:38,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:38,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 112214679, now seen corresponding path program 1 times [2022-11-20 10:51:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:38,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182652792] [2022-11-20 10:51:38,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:38,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:52:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 10:52:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:52:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:52:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:52:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 10:52:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 10:52:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 10:52:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-20 10:52:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:52:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 10:52:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 10:52:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:52:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 10:52:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:06,361 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-20 10:52:06,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:06,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182652792] [2022-11-20 10:52:06,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182652792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:06,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:06,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:52:06,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303043974] [2022-11-20 10:52:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:06,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:52:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:06,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:52:06,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:52:06,432 INFO L87 Difference]: Start difference. First operand 216 states and 345 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 10:52:06,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:06,516 INFO L93 Difference]: Finished difference Result 428 states and 693 transitions. [2022-11-20 10:52:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:52:06,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2022-11-20 10:52:06,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:06,525 INFO L225 Difference]: With dead ends: 428 [2022-11-20 10:52:06,529 INFO L226 Difference]: Without dead ends: 394 [2022-11-20 10:52:06,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:52:06,531 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 304 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:06,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1216 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:52:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-20 10:52:06,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 393. [2022-11-20 10:52:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 239 states have (on average 1.5230125523012552) internal successors, (364), 243 states have internal predecessors, (364), 135 states have call successors, (135), 18 states have call predecessors, (135), 18 states have return successors, (143), 135 states have call predecessors, (143), 135 states have call successors, (143) [2022-11-20 10:52:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 642 transitions. [2022-11-20 10:52:06,581 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 642 transitions. Word has length 94 [2022-11-20 10:52:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:06,581 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 642 transitions. [2022-11-20 10:52:06,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 10:52:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 642 transitions. [2022-11-20 10:52:06,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-20 10:52:06,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:06,588 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:06,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:52:06,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:06,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:06,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1641038572, now seen corresponding path program 1 times [2022-11-20 10:52:06,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:06,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397177761] [2022-11-20 10:52:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:06,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:38,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:52:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:52:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 10:52:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:52:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:52:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 10:52:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 10:52:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 10:52:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:52:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 10:52:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:52:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:52:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:52:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 10:52:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:52:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 10:52:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:52:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:52:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 10:52:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 10:52:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 10:52:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 10:52:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 10:52:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-20 10:52:39,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:52:39,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397177761] [2022-11-20 10:52:39,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397177761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:39,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:39,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:52:39,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817088621] [2022-11-20 10:52:39,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:39,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:52:39,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:52:39,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:52:39,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:52:39,262 INFO L87 Difference]: Start difference. First operand 393 states and 642 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:52:41,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:52:43,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:43,494 INFO L93 Difference]: Finished difference Result 852 states and 1389 transitions. [2022-11-20 10:52:43,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:52:43,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 173 [2022-11-20 10:52:43,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:43,502 INFO L225 Difference]: With dead ends: 852 [2022-11-20 10:52:43,503 INFO L226 Difference]: Without dead ends: 814 [2022-11-20 10:52:43,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:52:43,505 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 437 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 202 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:43,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1321 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1003 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 10:52:43,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-11-20 10:52:43,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 795. [2022-11-20 10:52:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 482 states have (on average 1.516597510373444) internal successors, (731), 497 states have internal predecessors, (731), 269 states have call successors, (269), 36 states have call predecessors, (269), 43 states have return successors, (309), 269 states have call predecessors, (309), 269 states have call successors, (309) [2022-11-20 10:52:43,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1309 transitions. [2022-11-20 10:52:43,622 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1309 transitions. Word has length 173 [2022-11-20 10:52:43,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:43,623 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1309 transitions. [2022-11-20 10:52:43,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:52:43,623 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1309 transitions. [2022-11-20 10:52:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-20 10:52:43,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:43,633 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:43,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:52:43,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:43,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:43,634 INFO L85 PathProgramCache]: Analyzing trace with hash -899337024, now seen corresponding path program 1 times [2022-11-20 10:52:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:52:43,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793906830] [2022-11-20 10:52:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:52:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-20 10:53:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:53:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 10:53:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:53:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:53:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 10:53:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 10:53:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 10:53:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:53:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 10:53:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:53:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:53:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:53:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 10:53:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:53:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 10:53:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:53:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:53:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 10:53:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 10:53:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 10:53:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 10:53:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 10:53:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-20 10:53:15,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:53:15,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793906830] [2022-11-20 10:53:15,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793906830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:15,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:15,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:53:15,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136895814] [2022-11-20 10:53:15,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:15,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:53:15,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:53:15,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:53:15,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:53:15,272 INFO L87 Difference]: Start difference. First operand 795 states and 1309 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:53:16,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:18,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:20,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:22,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:24,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:24,164 INFO L93 Difference]: Finished difference Result 1585 states and 2591 transitions. [2022-11-20 10:53:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:53:24,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 173 [2022-11-20 10:53:24,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:24,172 INFO L225 Difference]: With dead ends: 1585 [2022-11-20 10:53:24,172 INFO L226 Difference]: Without dead ends: 794 [2022-11-20 10:53:24,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:53:24,178 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 529 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 581 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:24,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1221 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 721 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2022-11-20 10:53:24,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-11-20 10:53:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 778. [2022-11-20 10:53:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 473 states have (on average 1.5095137420718816) internal successors, (714), 488 states have internal predecessors, (714), 261 states have call successors, (261), 35 states have call predecessors, (261), 43 states have return successors, (294), 262 states have call predecessors, (294), 261 states have call successors, (294) [2022-11-20 10:53:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1269 transitions. [2022-11-20 10:53:24,251 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1269 transitions. Word has length 173 [2022-11-20 10:53:24,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:24,252 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1269 transitions. [2022-11-20 10:53:24,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:53:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1269 transitions. [2022-11-20 10:53:24,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-20 10:53:24,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:24,261 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:24,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:53:24,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:24,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:24,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1581852266, now seen corresponding path program 1 times [2022-11-20 10:53:24,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:53:24,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142370699] [2022-11-20 10:53:24,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:24,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:53:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:54:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:54:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 10:54:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:54:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:54:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 10:54:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 10:54:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 10:54:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 10:54:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:54:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:54:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:54:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 10:54:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:54:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 10:54:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:54:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 10:54:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 10:54:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 10:54:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 10:54:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 10:54:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 10:54:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-20 10:54:00,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:54:00,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142370699] [2022-11-20 10:54:00,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142370699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:00,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:00,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:54:00,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285289724] [2022-11-20 10:54:00,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:00,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:54:00,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:54:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:54:00,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:54:00,442 INFO L87 Difference]: Start difference. First operand 778 states and 1269 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:54:02,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:54:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:04,311 INFO L93 Difference]: Finished difference Result 1257 states and 2010 transitions. [2022-11-20 10:54:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:54:04,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 173 [2022-11-20 10:54:04,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:04,319 INFO L225 Difference]: With dead ends: 1257 [2022-11-20 10:54:04,319 INFO L226 Difference]: Without dead ends: 704 [2022-11-20 10:54:04,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:54:04,324 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 483 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 428 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:04,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1202 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 796 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 10:54:04,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-11-20 10:54:04,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 682. [2022-11-20 10:54:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 418 states have (on average 1.4808612440191387) internal successors, (619), 431 states have internal predecessors, (619), 220 states have call successors, (220), 35 states have call predecessors, (220), 43 states have return successors, (250), 221 states have call predecessors, (250), 220 states have call successors, (250) [2022-11-20 10:54:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1089 transitions. [2022-11-20 10:54:04,380 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1089 transitions. Word has length 173 [2022-11-20 10:54:04,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:04,381 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1089 transitions. [2022-11-20 10:54:04,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:54:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1089 transitions. [2022-11-20 10:54:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-20 10:54:04,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:04,388 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:04,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:54:04,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash -63509980, now seen corresponding path program 1 times [2022-11-20 10:54:04,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:54:04,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663687045] [2022-11-20 10:54:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:04,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:54:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:54:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:54:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 10:54:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:54:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-20 10:54:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 10:54:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 10:54:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-20 10:54:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 10:54:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:54:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 10:54:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 10:54:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 10:54:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-20 10:54:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 10:54:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 10:54:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 10:54:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-20 10:54:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 10:54:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 10:54:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 10:54:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 10:54:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 10:54:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-20 10:54:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2022-11-20 10:54:38,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:54:38,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663687045] [2022-11-20 10:54:38,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663687045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:54:38,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169866213] [2022-11-20 10:54:38,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:38,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:54:38,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:54:38,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:54:38,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b291e43d-63ef-4979-90fb-3239db645a36/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:55:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:00,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 17288 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 10:55:00,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:00,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:00,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:00,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:09,272 WARN L233 SmtUtils]: Spent 8.84s on a formula simplification. DAG size of input: 307 DAG size of output: 95 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 10:55:09,273 INFO L321 Elim1Store]: treesize reduction 1470, result has 21.0 percent of original size [2022-11-20 10:55:09,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 38006 treesize of output 14513 [2022-11-20 10:55:10,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:55:10,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:55:11,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:55:11,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:55:11,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-20 10:55:17,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:17,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:18,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:19,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:20,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:20,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:20,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:21,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:21,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:21,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:21,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:21,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:21,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:22,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:22,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:22,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:22,970 INFO L217 Elim1Store]: Index analysis took 5110 ms [2022-11-20 10:55:24,745 INFO L321 Elim1Store]: treesize reduction 688, result has 5.6 percent of original size [2022-11-20 10:55:24,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 34 case distinctions, treesize of input 402 treesize of output 996 [2022-11-20 10:55:27,062 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 [2022-11-20 10:55:27,280 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 [2022-11-20 10:55:27,367 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 10:55:27,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:27,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:27,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:28,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:28,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:28,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:28,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:29,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:29,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:29,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:29,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:29,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:29,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:30,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:30,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:30,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:30,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:30,345 INFO L217 Elim1Store]: Index analysis took 2811 ms [2022-11-20 10:55:31,001 INFO L321 Elim1Store]: treesize reduction 380, result has 9.7 percent of original size [2022-11-20 10:55:31,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 22 case distinctions, treesize of input 395 treesize of output 991 [2022-11-20 10:55:33,146 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 [2022-11-20 10:55:35,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:35,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:35,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:37,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:37,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:37,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:39,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:39,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:39,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:39,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:39,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:39,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:41,801 INFO L217 Elim1Store]: Index analysis took 6722 ms [2022-11-20 10:55:45,592 INFO L321 Elim1Store]: treesize reduction 968, result has 5.6 percent of original size [2022-11-20 10:55:45,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 46 case distinctions, treesize of input 432 treesize of output 1040 [2022-11-20 10:56:04,545 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 [2022-11-20 10:56:04,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:05,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:05,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:06,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:07,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:07,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:07,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:07,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:07,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:07,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:08,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:09,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:09,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:09,588 INFO L217 Elim1Store]: Index analysis took 4649 ms [2022-11-20 10:56:11,272 INFO L321 Elim1Store]: treesize reduction 664, result has 8.9 percent of original size [2022-11-20 10:56:11,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 34 case distinctions, treesize of input 428 treesize of output 1046 [2022-11-20 10:56:19,018 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 [2022-11-20 10:56:19,758 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 [2022-11-20 10:56:19,859 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 [2022-11-20 10:56:20,284 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 [2022-11-20 10:56:21,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:21,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:21,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:21,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:21,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:22,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:23,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:23,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:23,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:23,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:23,128 INFO L217 Elim1Store]: Index analysis took 1729 ms [2022-11-20 10:56:23,715 INFO L321 Elim1Store]: treesize reduction 404, result has 4.0 percent of original size [2022-11-20 10:56:23,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 22 case distinctions, treesize of input 363 treesize of output 935 [2022-11-20 10:56:24,747 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 [2022-11-20 10:56:24,952 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 10:56:24,996 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 [2022-11-20 10:56:25,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:25,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:25,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:25,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:26,255 INFO L217 Elim1Store]: Index analysis took 975 ms [2022-11-20 10:56:26,566 INFO L321 Elim1Store]: treesize reduction 188, result has 8.3 percent of original size [2022-11-20 10:56:26,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 356 treesize of output 930 [2022-11-20 10:56:26,940 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 [2022-11-20 10:56:26,975 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 [2022-11-20 10:56:27,000 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 10:56:27,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:27,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:27,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:27,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:27,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:28,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:29,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:29,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:29,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:29,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:29,785 INFO L217 Elim1Store]: Index analysis took 2518 ms [2022-11-20 10:56:30,551 INFO L321 Elim1Store]: treesize reduction 388, result has 7.8 percent of original size [2022-11-20 10:56:30,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 22 case distinctions, treesize of input 389 treesize of output 977 [2022-11-20 10:56:32,664 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 [2022-11-20 10:56:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:33,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:33,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:33,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:34,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:34,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:34,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:35,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:35,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:35,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:35,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:35,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:36,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:36,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:36,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:37,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:37,256 INFO L217 Elim1Store]: Index analysis took 4145 ms [2022-11-20 10:56:39,225 INFO L321 Elim1Store]: treesize reduction 696, result has 4.5 percent of original size [2022-11-20 10:56:39,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 34 case distinctions, treesize of input 396 treesize of output 982 [2022-11-20 10:56:43,680 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 [2022-11-20 10:56:43,885 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 [2022-11-20 10:56:44,546 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 10:56:44,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:44,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:45,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:46,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:46,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:46,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:46,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:47,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:47,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:47,650 INFO L217 Elim1Store]: Index analysis took 2754 ms [2022-11-20 10:56:48,684 INFO L321 Elim1Store]: treesize reduction 923, result has 2.6 percent of original size [2022-11-20 10:56:48,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 40 case distinctions, treesize of input 794 treesize of output 988 [2022-11-20 10:56:51,166 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 [2022-11-20 10:56:51,610 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 [2022-11-20 10:56:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:52,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:53,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:53,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:53,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:53,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:53,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:53,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:54,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:54,115 INFO L217 Elim1Store]: Index analysis took 1704 ms [2022-11-20 10:56:54,699 INFO L321 Elim1Store]: treesize reduction 612, result has 2.7 percent of original size [2022-11-20 10:56:54,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 29 case distinctions, treesize of input 429 treesize of output 633 [2022-11-20 10:56:55,736 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 [2022-11-20 10:56:56,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:56,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:56,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:56,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:56,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:57,445 INFO L217 Elim1Store]: Index analysis took 1001 ms [2022-11-20 10:56:57,705 INFO L321 Elim1Store]: treesize reduction 373, result has 4.4 percent of original size [2022-11-20 10:56:57,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 19 case distinctions, treesize of input 310 treesize of output 524 [2022-11-20 10:56:58,151 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 [2022-11-20 10:56:58,236 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 [2022-11-20 10:56:58,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:58,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:58,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:56:58,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:56:59,876 INFO L217 Elim1Store]: Index analysis took 1468 ms [2022-11-20 10:57:00,520 INFO L321 Elim1Store]: treesize reduction 612, result has 2.7 percent of original size [2022-11-20 10:57:00,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 29 case distinctions, treesize of input 317 treesize of output 529 [2022-11-20 10:57:01,056 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 [2022-11-20 10:57:01,180 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 [2022-11-20 10:57:02,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:02,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:02,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:02,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:02,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:02,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:02,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:02,290 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-20 10:57:02,671 INFO L321 Elim1Store]: treesize reduction 432, result has 3.8 percent of original size [2022-11-20 10:57:02,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 23 case distinctions, treesize of input 499 treesize of output 494 [2022-11-20 10:57:04,217 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 [2022-11-20 10:57:04,285 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 [2022-11-20 10:57:04,530 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 [2022-11-20 10:57:04,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:04,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:04,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:04,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:04,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:04,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:04,829 INFO L217 Elim1Store]: Index analysis took 152 ms [2022-11-20 10:57:05,172 INFO L321 Elim1Store]: treesize reduction 667, result has 1.2 percent of original size [2022-11-20 10:57:05,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 32 case distinctions, treesize of input 373 treesize of output 360 [2022-11-20 10:57:06,069 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 [2022-11-20 10:57:06,302 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 [2022-11-20 10:57:06,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:06,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:06,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:06,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:06,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:06,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:06,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:06,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:06,811 INFO L321 Elim1Store]: treesize reduction 474, result has 5.0 percent of original size [2022-11-20 10:57:06,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 24 case distinctions, treesize of input 223 treesize of output 230 [2022-11-20 10:57:07,284 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 [2022-11-20 10:57:07,436 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 [2022-11-20 10:57:07,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:07,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:07,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:07,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:07,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:07,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:07,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:07,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:07,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:07,839 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-20 10:57:08,137 INFO L321 Elim1Store]: treesize reduction 262, result has 6.1 percent of original size [2022-11-20 10:57:08,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 439 treesize of output 440 [2022-11-20 10:57:09,238 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 [2022-11-20 10:58:04,911 WARN L233 SmtUtils]: Spent 45.98s on a formula simplification that was a NOOP. DAG size: 2049 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 10:58:04,913 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:58:04,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 32 select indices, 32 select index equivalence classes, 0 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 496 case distinctions, treesize of input 221037533 treesize of output 203021363