./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e --- 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-dbf71c6-m [2022-10-17 16:42:18,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:42:18,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:42:18,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:42:18,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:42:18,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:42:18,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:42:18,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:42:18,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:42:18,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:42:18,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:42:18,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:42:18,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:42:18,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:42:18,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:42:18,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:42:18,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:42:18,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:42:18,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:42:18,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:42:18,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:42:18,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:42:18,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:42:18,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:42:19,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:42:19,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:42:19,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:42:19,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:42:19,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:42:19,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:42:19,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:42:19,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:42:19,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:42:19,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:42:19,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:42:19,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:42:19,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:42:19,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:42:19,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:42:19,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:42:19,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:42:19,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:42:19,071 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:42:19,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:42:19,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:42:19,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:42:19,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:42:19,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:42:19,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:42:19,073 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:42:19,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:42:19,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:42:19,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:42:19,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:42:19,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:42:19,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:42:19,074 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:42:19,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:42:19,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:42:19,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:42:19,079 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:42:19,080 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:42:19,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:42:19,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:42:19,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:42:19,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:42:19,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:42:19,081 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:42:19,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:42:19,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:42:19,082 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_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e [2022-10-17 16:42:19,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:42:19,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:42:19,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:42:19,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:42:19,394 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:42:19,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c [2022-10-17 16:42:19,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/data/38f191903/993387a32d1a46d1b8e92101e31328a8/FLAG61d0e8e90 [2022-10-17 16:42:19,942 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:42:19,942 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c [2022-10-17 16:42:19,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/data/38f191903/993387a32d1a46d1b8e92101e31328a8/FLAG61d0e8e90 [2022-10-17 16:42:20,328 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/data/38f191903/993387a32d1a46d1b8e92101e31328a8 [2022-10-17 16:42:20,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:42:20,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:42:20,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:42:20,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:42:20,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:42:20,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45644832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20, skipping insertion in model container [2022-10-17 16:42:20,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:42:20,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:42:20,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c[576,589] [2022-10-17 16:42:20,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:42:20,562 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:42:20,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c[576,589] [2022-10-17 16:42:20,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:42:20,596 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:42:20,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20 WrapperNode [2022-10-17 16:42:20,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:42:20,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:42:20,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:42:20,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:42:20,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,633 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2022-10-17 16:42:20,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:42:20,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:42:20,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:42:20,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:42:20,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:42:20,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:42:20,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:42:20,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:42:20,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:42:20" (1/1) ... [2022-10-17 16:42:20,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:42:20,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:42:20,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:42:20,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5caf0c0-2077-467b-87b6-db0d779374a1/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:42:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:42:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:42:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:42:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:42:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:42:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:42:20,820 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:42:20,822 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:42:21,020 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:42:21,056 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:42:21,056 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:42:21,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:42:21 BoogieIcfgContainer [2022-10-17 16:42:21,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:42:21,060 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:42:21,060 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:42:21,079 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:42:21,079 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:42:21" (1/1) ... [2022-10-17 16:42:21,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:42:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2022-10-17 16:42:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2022-10-17 16:42:21,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:42:21,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:21,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 16:42:21,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:42:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2022-10-17 16:42:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-10-17 16:42:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:42:21,373 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:21,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:42:21,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:42:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:21,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2022-10-17 16:42:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2022-10-17 16:42:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:42:21,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:21,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:21,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:42:21,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:42:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:22,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 31 states and 52 transitions. [2022-10-17 16:42:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2022-10-17 16:42:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:42:22,071 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:22,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:22,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:42:22,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:22,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:42:22,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 35 states and 61 transitions. [2022-10-17 16:42:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2022-10-17 16:42:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:42:22,651 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:22,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:42:22,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:42:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 37 states and 66 transitions. [2022-10-17 16:42:23,132 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2022-10-17 16:42:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:42:23,134 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:23,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:23,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:42:23,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:42:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2022-10-17 16:42:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2022-10-17 16:42:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:42:23,302 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:23,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:23,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:42:23,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:42:24,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 49 states and 105 transitions. [2022-10-17 16:42:24,840 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 105 transitions. [2022-10-17 16:42:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:42:24,842 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:24,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:24,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:42:24,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:24,939 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:42:25,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 53 states and 116 transitions. [2022-10-17 16:42:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 116 transitions. [2022-10-17 16:42:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:42:25,740 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:25,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:25,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:42:25,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:42:27,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 63 states and 148 transitions. [2022-10-17 16:42:27,991 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 148 transitions. [2022-10-17 16:42:27,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:42:27,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:27,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:28,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:42:28,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:28,196 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 16:42:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:28,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 67 states and 167 transitions. [2022-10-17 16:42:28,869 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 167 transitions. [2022-10-17 16:42:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:42:28,874 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:28,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:28,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:42:28,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 16:42:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 78 states and 229 transitions. [2022-10-17 16:42:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 229 transitions. [2022-10-17 16:42:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:42:31,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:31,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:31,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:42:31,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 16:42:33,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 84 states and 249 transitions. [2022-10-17 16:42:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 249 transitions. [2022-10-17 16:42:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:42:33,032 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:33,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:42:33,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 16:42:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 86 states and 250 transitions. [2022-10-17 16:42:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 250 transitions. [2022-10-17 16:42:33,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 16:42:33,743 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:33,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:33,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-17 16:42:33,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 16:42:40,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 98 states and 299 transitions. [2022-10-17 16:42:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 299 transitions. [2022-10-17 16:42:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 16:42:40,968 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:40,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:41,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-17 16:42:41,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 16:42:43,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 101 states and 307 transitions. [2022-10-17 16:42:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 307 transitions. [2022-10-17 16:42:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 16:42:43,661 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:43,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:43,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-17 16:42:43,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 16:42:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 103 states and 309 transitions. [2022-10-17 16:42:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 309 transitions. [2022-10-17 16:42:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 16:42:45,831 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:45,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-17 16:42:45,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 16:42:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:49,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 114 states and 353 transitions. [2022-10-17 16:42:49,446 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 353 transitions. [2022-10-17 16:42:49,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-17 16:42:49,448 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:49,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:42:49,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 14 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 16:42:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:42:51,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 118 states and 356 transitions. [2022-10-17 16:42:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 356 transitions. [2022-10-17 16:42:51,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-17 16:42:51,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:42:51,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:42:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:42:51,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:42:51,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:42:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.