./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 9a8265a1502e23b0364b9cd16198377a0ca498fc346156a58eeb954c0e23f901 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:22:19,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:22:19,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:22:19,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:22:19,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:22:19,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:22:19,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:22:19,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:22:19,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:22:19,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:22:19,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:22:19,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:22:19,386 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:22:19,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:22:19,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:22:19,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:22:19,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:22:19,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:22:19,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:22:19,390 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:22:19,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:22:19,393 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:22:19,393 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:22:19,394 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:22:19,394 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:22:19,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:22:19,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:22:19,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:22:19,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:22:19,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:22:19,396 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:22:19,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:22:19,397 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:22:19,397 INFO L153 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_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8265a1502e23b0364b9cd16198377a0ca498fc346156a58eeb954c0e23f901 [2023-12-02 21:22:19,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:22:19,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:22:19,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:22:19,615 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:22:19,616 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:22:19,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2023-12-02 21:22:22,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:22:22,565 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:22:22,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2023-12-02 21:22:22,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/data/583a6111a/e74c357708e84ef3927f63adb5144fc8/FLAGe55110c9b [2023-12-02 21:22:22,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/data/583a6111a/e74c357708e84ef3927f63adb5144fc8 [2023-12-02 21:22:22,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:22:22,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:22:22,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:22:22,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:22:22,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:22:22,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac1e0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22, skipping insertion in model container [2023-12-02 21:22:22,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,626 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:22:22,797 WARN L240 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_7d980394-cb7e-4614-9c9b-a18f46d78644/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c[8209,8222] [2023-12-02 21:22:22,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:22:22,811 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:22:22,854 WARN L240 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_7d980394-cb7e-4614-9c9b-a18f46d78644/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c[8209,8222] [2023-12-02 21:22:22,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:22:22,872 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:22:22,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22 WrapperNode [2023-12-02 21:22:22,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:22:22,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:22:22,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:22:22,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:22:22,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,918 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 274 [2023-12-02 21:22:22,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:22:22,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:22:22,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:22:22,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:22:22,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:22:22,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:22:22,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:22:22,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:22:22,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:22" (1/1) ... [2023-12-02 21:22:22,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:22:22,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:22:22,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:22:22,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d980394-cb7e-4614-9c9b-a18f46d78644/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:22:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:22:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:22:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:22:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:22:23,089 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:22:23,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:22:23,411 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:22:23,677 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:22:23,678 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:22:23,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:23 BoogieIcfgContainer [2023-12-02 21:22:23,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:22:23,680 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:22:23,680 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:22:23,687 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:22:23,687 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:23" (1/1) ... [2023-12-02 21:22:23,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:22:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-02 21:22:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-02 21:22:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:22:23,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:23,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:24,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2023-12-02 21:22:24,833 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2023-12-02 21:22:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:22:24,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:24,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 17 states and 27 transitions. [2023-12-02 21:22:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 27 transitions. [2023-12-02 21:22:25,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:22:25,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:25,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 21 states and 35 transitions. [2023-12-02 21:22:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 35 transitions. [2023-12-02 21:22:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 21:22:26,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:26,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 25 states and 41 transitions. [2023-12-02 21:22:27,363 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 41 transitions. [2023-12-02 21:22:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 21:22:27,364 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:27,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 35 states and 68 transitions. [2023-12-02 21:22:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 68 transitions. [2023-12-02 21:22:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:22:33,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:33,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 40 states and 80 transitions. [2023-12-02 21:22:35,539 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 80 transitions. [2023-12-02 21:22:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:22:35,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:35,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 49 states and 102 transitions. [2023-12-02 21:22:45,514 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 102 transitions. [2023-12-02 21:22:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:22:45,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:45,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:57,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 60 states and 127 transitions. [2023-12-02 21:22:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 127 transitions. [2023-12-02 21:22:57,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:22:57,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:22:58,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:58,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 61 states and 129 transitions. [2023-12-02 21:22:58,033 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 129 transitions. [2023-12-02 21:22:58,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 21:22:58,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:58,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:22:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 62 states and 131 transitions. [2023-12-02 21:22:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 131 transitions. [2023-12-02 21:22:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 21:22:59,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:59,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:22:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 73 states and 171 transitions. [2023-12-02 21:23:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 171 transitions. [2023-12-02 21:23:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:08,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:08,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 82 states and 196 transitions. [2023-12-02 21:23:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 196 transitions. [2023-12-02 21:23:14,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:14,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:14,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:15,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:21,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:21,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 91 states and 221 transitions. [2023-12-02 21:23:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 221 transitions. [2023-12-02 21:23:21,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:21,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:21,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 103 states and 257 transitions. [2023-12-02 21:23:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 257 transitions. [2023-12-02 21:23:32,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:32,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:32,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 108 states and 275 transitions. [2023-12-02 21:23:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 275 transitions. [2023-12-02 21:23:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:39,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:39,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:51,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 119 states and 308 transitions. [2023-12-02 21:23:51,544 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 308 transitions. [2023-12-02 21:23:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:51,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:51,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:51,852 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:55,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 121 states and 315 transitions. [2023-12-02 21:23:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 315 transitions. [2023-12-02 21:23:55,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:55,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:55,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:23:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 122 states and 316 transitions. [2023-12-02 21:23:57,144 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 316 transitions. [2023-12-02 21:23:57,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:23:57,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:57,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:23:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:24:01,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 124 states and 329 transitions. [2023-12-02 21:24:01,824 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 329 transitions. [2023-12-02 21:24:01,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:24:01,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:01,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:24:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:03,940 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:24:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:10,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 129 states and 342 transitions. [2023-12-02 21:24:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 342 transitions. [2023-12-02 21:24:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:24:10,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:10,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:24:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:24:12,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:12,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 131 states and 348 transitions. [2023-12-02 21:24:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 348 transitions. [2023-12-02 21:24:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:24:12,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:12,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:24:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:24:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 132 states and 351 transitions. [2023-12-02 21:24:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 351 transitions. [2023-12-02 21:24:13,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 21:24:13,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:13,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:24:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 21:24:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:14,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 132 states and 350 transitions. [2023-12-02 21:24:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 350 transitions. [2023-12-02 21:24:14,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 21:24:14,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:24:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:26:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:38,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 158 states and 447 transitions. [2023-12-02 21:26:38,477 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 447 transitions. [2023-12-02 21:26:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 21:26:38,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:38,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:26:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:29:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:29:21,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 182 states and 536 transitions. [2023-12-02 21:29:21,144 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 536 transitions. [2023-12-02 21:29:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 21:29:21,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:29:21,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:29:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:30:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:32:28,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:32:28,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 207 states and 635 transitions. [2023-12-02 21:32:28,010 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 635 transitions. [2023-12-02 21:32:28,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 21:32:28,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:32:28,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:32:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:33:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:35:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:35:21,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 232 states and 736 transitions. [2023-12-02 21:35:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 736 transitions. [2023-12-02 21:35:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 21:35:21,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:35:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:35:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:36:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:36:52,150 WARN L293 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 449 DAG size of output: 297 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)