./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/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_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/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_c6320dba-b616-4169-8151-21c5d3871b03/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 b4e7977192ae56aeb09dc050b873d7b40c1e47d710f31b358c00a46d3bffe743 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:38:49,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:38:49,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:38:49,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:38:49,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:38:49,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:38:49,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:38:49,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:38:49,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:38:49,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:38:49,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:38:49,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:38:49,661 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:38:49,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:38:49,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:38:49,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:38:49,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:38:49,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:38:49,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:38:49,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:38:49,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:38:49,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:38:49,666 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:38:49,667 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:38:49,667 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:38:49,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:38:49,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:38:49,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:38:49,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:38:49,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:38:49,670 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:38:49,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:38:49,671 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:38:49,671 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_c6320dba-b616-4169-8151-21c5d3871b03/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4e7977192ae56aeb09dc050b873d7b40c1e47d710f31b358c00a46d3bffe743 [2023-12-02 23:38:49,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:38:49,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:38:49,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:38:49,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:38:49,926 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:38:49,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2023-12-02 23:38:52,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:38:52,795 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:38:52,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c [2023-12-02 23:38:52,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/data/8951d9122/1d28536087374859b6e1f209a34cdc66/FLAG7e1585b97 [2023-12-02 23:38:52,820 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/data/8951d9122/1d28536087374859b6e1f209a34cdc66 [2023-12-02 23:38:52,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:38:52,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:38:52,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:38:52,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:38:52,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:38:52,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:52" (1/1) ... [2023-12-02 23:38:52,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45627bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:52, skipping insertion in model container [2023-12-02 23:38:52,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:52" (1/1) ... [2023-12-02 23:38:52,872 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:38:53,058 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_c6320dba-b616-4169-8151-21c5d3871b03/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c[15112,15125] [2023-12-02 23:38:53,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:38:53,073 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:38:53,127 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_c6320dba-b616-4169-8151-21c5d3871b03/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.BOUNDED-12.pals.c[15112,15125] [2023-12-02 23:38:53,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:38:53,144 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:38:53,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53 WrapperNode [2023-12-02 23:38:53,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:38:53,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:38:53,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:38:53,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:38:53,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,195 INFO L138 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 393 [2023-12-02 23:38:53,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:38:53,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:38:53,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:38:53,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:38:53,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:38:53,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:38:53,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:38:53,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:38:53,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:53" (1/1) ... [2023-12-02 23:38:53,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:38:53,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:38:53,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:38:53,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6320dba-b616-4169-8151-21c5d3871b03/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:38:53,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:38:53,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:38:53,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:38:53,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:38:53,400 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:38:53,401 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:38:53,820 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:38:54,365 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:38:54,365 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:38:54,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:54 BoogieIcfgContainer [2023-12-02 23:38:54,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:38:54,368 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:38:54,368 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:38:54,379 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:38:54,379 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:54" (1/1) ... [2023-12-02 23:38:54,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:38:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:54,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-02 23:38:54,449 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-02 23:38:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:38:54,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:55,817 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 23:38:55,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:55,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2023-12-02 23:38:55,938 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2023-12-02 23:38:55,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:38:55,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:55,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:56,166 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 23:38:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:56,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 17 states and 27 transitions. [2023-12-02 23:38:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 27 transitions. [2023-12-02 23:38:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:38:56,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:56,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:57,507 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 23:38:58,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:58,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2023-12-02 23:38:58,015 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2023-12-02 23:38:58,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:38:58,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:58,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:58,326 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 23:38:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2023-12-02 23:38:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2023-12-02 23:38:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:38:58,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:58,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:04,871 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 23:39:10,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:10,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 60 transitions. [2023-12-02 23:39:10,070 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2023-12-02 23:39:10,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:39:10,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:39:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:10,772 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 23:39:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:15,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 45 states and 84 transitions. [2023-12-02 23:39:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2023-12-02 23:39:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:39:15,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:15,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:39:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:22,360 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 23:39:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 54 states and 103 transitions. [2023-12-02 23:39:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 103 transitions. [2023-12-02 23:39:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:39:29,888 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:29,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:39:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:36,243 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 23:39:45,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:45,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 65 states and 131 transitions. [2023-12-02 23:39:45,033 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 131 transitions. [2023-12-02 23:39:45,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:39:45,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:45,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:39:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:45,361 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 23:39:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:45,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 66 states and 134 transitions. [2023-12-02 23:39:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 134 transitions. [2023-12-02 23:39:45,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 23:39:45,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:45,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:39:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:39:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 77 states and 171 transitions. [2023-12-02 23:39:59,383 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 171 transitions. [2023-12-02 23:39:59,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 23:39:59,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:59,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:39:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:00,728 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:40:01,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:01,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 79 states and 176 transitions. [2023-12-02 23:40:01,542 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 176 transitions. [2023-12-02 23:40:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:01,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:01,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:02,711 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 23:40:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 87 states and 201 transitions. [2023-12-02 23:40:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 201 transitions. [2023-12-02 23:40:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:07,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:07,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:09,265 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 23:40:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 89 states and 206 transitions. [2023-12-02 23:40:11,255 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 206 transitions. [2023-12-02 23:40:11,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:11,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:11,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:13,570 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 23:40:19,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 99 states and 239 transitions. [2023-12-02 23:40:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 239 transitions. [2023-12-02 23:40:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:19,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:19,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:22,057 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 23:40:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 109 states and 268 transitions. [2023-12-02 23:40:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 268 transitions. [2023-12-02 23:40:33,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:33,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:33,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:33,956 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 23:40:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:34,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 110 states and 272 transitions. [2023-12-02 23:40:34,499 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 272 transitions. [2023-12-02 23:40:34,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:34,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:34,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:37,371 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 23:40:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 111 states and 279 transitions. [2023-12-02 23:40:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 279 transitions. [2023-12-02 23:40:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:39,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:39,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:39,974 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 23:40:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 113 states and 291 transitions. [2023-12-02 23:40:41,789 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 291 transitions. [2023-12-02 23:40:41,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:41,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:44,165 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 23:40:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:49,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 118 states and 302 transitions. [2023-12-02 23:40:49,310 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 302 transitions. [2023-12-02 23:40:49,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:40:49,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:49,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:52,109 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 23:40:57,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 126 states and 330 transitions. [2023-12-02 23:40:57,750 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 330 transitions. [2023-12-02 23:40:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 23:40:57,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:40:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:42:33,917 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 23:44:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:44:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 151 states and 423 transitions. [2023-12-02 23:44:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 423 transitions. [2023-12-02 23:44:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 23:44:41,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:44:41,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:44:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:03,349 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 23:47:30,504 WARN L293 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 499 DAG size of output: 415 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:47:47,078 WARN L293 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 500 DAG size of output: 382 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:47:56,513 WARN L293 SmtUtils]: Spent 8.53s on a formula simplification. DAG size of input: 502 DAG size of output: 418 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:48:21,399 WARN L293 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 504 DAG size of output: 420 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:48:34,552 WARN L293 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 421 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:48:59,013 WARN L293 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 586 DAG size of output: 483 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:49:29,199 WARN L293 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 614 DAG size of output: 550 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:49:36,229 WARN L293 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 616 DAG size of output: 571 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:49:54,625 WARN L293 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 616 DAG size of output: 552 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:50:01,380 WARN L293 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 618 DAG size of output: 573 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:51:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 176 states and 521 transitions. [2023-12-02 23:51:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 521 transitions. [2023-12-02 23:51:19,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 23:51:19,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:19,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:52:12,466 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 23:52:29,854 WARN L293 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 526 DAG size of output: 341 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:52:41,694 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 528 DAG size of output: 435 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:53:00,709 WARN L293 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 528 DAG size of output: 343 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:53:11,658 WARN L293 SmtUtils]: Spent 8.81s on a formula simplification. DAG size of input: 530 DAG size of output: 437 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)