./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.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_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/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_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/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_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/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 a3df27f87602fca8935d2269a873dfd3f1a5195383d477434680a0bc703d239a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:30:10,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:30:10,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:30:10,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:30:10,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:30:10,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:30:10,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:30:10,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:30:10,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:30:10,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:30:10,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:30:10,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:30:10,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:30:10,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:30:10,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:30:10,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:30:10,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:30:10,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:30:10,673 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:30:10,674 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:30:10,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:30:10,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:30:10,676 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:30:10,676 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:30:10,676 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:30:10,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:30:10,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:30:10,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:30:10,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:30:10,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:30:10,679 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:30:10,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:30:10,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:30:10,680 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_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3df27f87602fca8935d2269a873dfd3f1a5195383d477434680a0bc703d239a [2023-12-02 23:30:10,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:30:10,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:30:10,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:30:10,958 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:30:10,958 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:30:10,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2023-12-02 23:30:13,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:30:13,957 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:30:13,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2023-12-02 23:30:13,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/data/14a55a7e5/a7656494999e4e94a6f210f322039f13/FLAGe4f3b7652 [2023-12-02 23:30:13,984 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/data/14a55a7e5/a7656494999e4e94a6f210f322039f13 [2023-12-02 23:30:13,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:30:13,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:30:13,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:30:13,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:30:13,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:30:13,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:30:13" (1/1) ... [2023-12-02 23:30:13,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d70a9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:13, skipping insertion in model container [2023-12-02 23:30:13,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:30:13" (1/1) ... [2023-12-02 23:30:14,036 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:30:14,256 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_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c[26518,26531] [2023-12-02 23:30:14,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:30:14,277 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:30:14,346 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_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c[26518,26531] [2023-12-02 23:30:14,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:30:14,365 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:30:14,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14 WrapperNode [2023-12-02 23:30:14,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:30:14,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:30:14,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:30:14,367 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:30:14,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,434 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 523 [2023-12-02 23:30:14,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:30:14,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:30:14,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:30:14,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:30:14,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:30:14,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:30:14,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:30:14,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:30:14,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:14" (1/1) ... [2023-12-02 23:30:14,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:30:14,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:30:14,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:30:14,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0998270c-2987-4fbe-a4f9-e36ea11ae1f2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:30:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:30:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:30:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:30:14,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:30:14,707 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:30:14,709 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:30:15,169 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:30:15,861 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:30:15,861 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:30:15,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:30:15 BoogieIcfgContainer [2023-12-02 23:30:15,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:30:15,864 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:30:15,864 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:30:15,871 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:30:15,871 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:30:15" (1/1) ... [2023-12-02 23:30:15,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:30:15,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-02 23:30:15,923 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-02 23:30:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:30:15,925 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:15,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:18,494 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 23:30:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2023-12-02 23:30:18,628 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2023-12-02 23:30:18,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:30:18,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:18,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:19,187 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 23:30:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:19,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2023-12-02 23:30:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2023-12-02 23:30:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:30:19,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:19,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:21,431 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 23:30:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-12-02 23:30:22,166 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-12-02 23:30:22,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:30:22,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:22,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:22,445 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 23:30:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2023-12-02 23:30:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2023-12-02 23:30:22,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:30:22,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:22,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:34,053 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 23:30:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 33 states and 54 transitions. [2023-12-02 23:30:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2023-12-02 23:30:40,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:30:40,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:40,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:41,769 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 23:30:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 41 states and 70 transitions. [2023-12-02 23:30:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 70 transitions. [2023-12-02 23:30:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:30:46,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:46,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:30:56,128 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 23:31:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 52 states and 91 transitions. [2023-12-02 23:31:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2023-12-02 23:31:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:31:06,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:06,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:06,957 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 23:31:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:07,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 53 states and 94 transitions. [2023-12-02 23:31:07,301 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 94 transitions. [2023-12-02 23:31:07,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 23:31:07,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:07,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:10,578 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 23:31:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:21,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 69 states and 131 transitions. [2023-12-02 23:31:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 131 transitions. [2023-12-02 23:31:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:31:21,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:21,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:25,002 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 23:31:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 77 states and 152 transitions. [2023-12-02 23:31:29,824 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 152 transitions. [2023-12-02 23:31:29,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:31:29,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:29,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:30,838 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:31:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 85 states and 167 transitions. [2023-12-02 23:31:34,660 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 167 transitions. [2023-12-02 23:31:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:31:34,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:34,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:36,034 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 23:31:38,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:38,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 88 states and 179 transitions. [2023-12-02 23:31:38,308 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 179 transitions. [2023-12-02 23:31:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:31:38,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:38,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:42,023 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 23:31:43,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 89 states and 181 transitions. [2023-12-02 23:31:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 181 transitions. [2023-12-02 23:31:43,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:31:43,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:43,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:47,476 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 23:31:57,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 101 states and 204 transitions. [2023-12-02 23:31:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 204 transitions. [2023-12-02 23:31:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 23:31:57,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:57,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:31:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:08,046 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 23:34:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:34:31,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 126 states and 268 transitions. [2023-12-02 23:34:31,400 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 268 transitions. [2023-12-02 23:34:31,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 23:34:31,401 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:34:31,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:34:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:41,296 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 23:38:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 151 states and 335 transitions. [2023-12-02 23:38:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 335 transitions. [2023-12-02 23:38:24,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 23:38:24,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:24,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:33,799 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 23:39:52,042 WARN L293 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 569 DAG size of output: 385 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:40:04,004 WARN L293 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 571 DAG size of output: 401 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:40:20,085 WARN L293 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 571 DAG size of output: 387 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:40:27,267 WARN L293 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 573 DAG size of output: 403 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:40:42,022 WARN L293 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 573 DAG size of output: 389 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:40:48,661 WARN L293 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 575 DAG size of output: 405 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:41:58,006 WARN L293 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 581 DAG size of output: 451 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 23:43:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:43:18,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 176 states and 411 transitions. [2023-12-02 23:43:18,524 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 411 transitions. [2023-12-02 23:43:18,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 23:43:18,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:43:18,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:43:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat