./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.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_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/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_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/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_1ff219f2-546c-45d7-812e-f97d000540d6/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 71881827e42af7e93d8d7789f21cf70c42c80b5b7128690239afcf02ba9daf37 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:26:48,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:26:48,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 22:26:48,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:26:48,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:26:48,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:26:48,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:26:48,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:26:48,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:26:48,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:26:48,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:26:48,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:26:48,876 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:26:48,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:26:48,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:26:48,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:26:48,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:26:48,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:26:48,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:26:48,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:26:48,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:26:48,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:26:48,885 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:26:48,885 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:26:48,885 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:26:48,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:26:48,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:26:48,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:26:48,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:26:48,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:26:48,888 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:26:48,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:26:48,889 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:26:48,889 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_1ff219f2-546c-45d7-812e-f97d000540d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71881827e42af7e93d8d7789f21cf70c42c80b5b7128690239afcf02ba9daf37 [2023-12-02 22:26:49,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:26:49,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:26:49,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:26:49,149 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:26:49,150 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:26:49,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2023-12-02 22:26:51,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:26:52,141 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:26:52,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2023-12-02 22:26:52,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/data/714daa436/126e3d9ed5814cd58c129349538fe2d2/FLAGc0d02ba5e [2023-12-02 22:26:52,168 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/data/714daa436/126e3d9ed5814cd58c129349538fe2d2 [2023-12-02 22:26:52,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:26:52,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:26:52,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:26:52,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:26:52,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:26:52,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c9291b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52, skipping insertion in model container [2023-12-02 22:26:52,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,230 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:26:52,450 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_1ff219f2-546c-45d7-812e-f97d000540d6/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c[15103,15116] [2023-12-02 22:26:52,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:26:52,467 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:26:52,519 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_1ff219f2-546c-45d7-812e-f97d000540d6/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c[15103,15116] [2023-12-02 22:26:52,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:26:52,537 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:26:52,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52 WrapperNode [2023-12-02 22:26:52,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:26:52,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:26:52,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:26:52,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:26:52,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,589 INFO L138 Inliner]: procedures = 26, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 390 [2023-12-02 22:26:52,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:26:52,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:26:52,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:26:52,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:26:52,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:26:52,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:26:52,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:26:52,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:26:52,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:26:52" (1/1) ... [2023-12-02 22:26:52,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:26:52,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:26:52,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:26:52,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ff219f2-546c-45d7-812e-f97d000540d6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:26:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:26:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:26:52,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:26:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:26:52,792 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:26:52,794 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:26:53,180 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:26:53,799 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:26:53,799 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:26:53,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:26:53 BoogieIcfgContainer [2023-12-02 22:26:53,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:26:53,802 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:26:53,802 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:26:53,811 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:26:53,812 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:26:53" (1/1) ... [2023-12-02 22:26:53,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:26:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:53,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-02 22:26:53,874 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-02 22:26:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 22:26:53,876 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:53,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:55,564 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 22:26:55,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:55,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2023-12-02 22:26:55,695 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2023-12-02 22:26:55,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:26:55,696 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:55,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:56,713 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 22:26:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2023-12-02 22:26:57,034 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2023-12-02 22:26:57,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:26:57,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:57,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:57,394 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 22:26:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:57,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-12-02 22:26:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-12-02 22:26:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:26:57,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:57,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:58,015 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 22:26:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2023-12-02 22:26:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2023-12-02 22:26:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 22:26:58,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:58,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:05,535 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 22:27:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:10,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 55 transitions. [2023-12-02 22:27:10,729 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2023-12-02 22:27:10,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 22:27:10,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:10,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:17,365 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 22:27:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 42 states and 71 transitions. [2023-12-02 22:27:27,142 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2023-12-02 22:27:27,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 22:27:27,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:27,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:27,893 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 22:27:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:31,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 50 states and 86 transitions. [2023-12-02 22:27:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 86 transitions. [2023-12-02 22:27:31,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 22:27:31,719 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:31,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:34,092 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 22:27:44,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 67 states and 127 transitions. [2023-12-02 22:27:44,841 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 127 transitions. [2023-12-02 22:27:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:27:44,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:44,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:45,805 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 22:27:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 69 states and 130 transitions. [2023-12-02 22:27:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 130 transitions. [2023-12-02 22:27:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:27:46,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:46,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:47,216 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 22:27:51,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:51,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 75 states and 142 transitions. [2023-12-02 22:27:51,481 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 142 transitions. [2023-12-02 22:27:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:27:51,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:51,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:53,834 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 22:28:01,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:01,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 92 states and 171 transitions. [2023-12-02 22:28:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 171 transitions. [2023-12-02 22:28:01,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:28:01,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:01,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:03,820 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 22:28:05,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:05,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 93 states and 178 transitions. [2023-12-02 22:28:05,680 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 178 transitions. [2023-12-02 22:28:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:28:05,681 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:05,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:06,197 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 22:28:07,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:07,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 94 states and 179 transitions. [2023-12-02 22:28:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 179 transitions. [2023-12-02 22:28:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:28:07,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:07,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:07,554 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 22:28:08,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:08,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 96 states and 186 transitions. [2023-12-02 22:28:08,781 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 186 transitions. [2023-12-02 22:28:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:28:08,783 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:08,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:11,188 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 22:28:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:20,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 108 states and 210 transitions. [2023-12-02 22:28:20,809 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 210 transitions. [2023-12-02 22:28:20,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 22:28:20,809 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:20,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:21,007 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 22:28:21,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 108 states and 209 transitions. [2023-12-02 22:28:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 209 transitions. [2023-12-02 22:28:21,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:28:21,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:21,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:28:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:29:29,975 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 22:30:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:30:46,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 134 states and 275 transitions. [2023-12-02 22:30:46,330 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 275 transitions. [2023-12-02 22:30:46,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:30:46,331 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:30:46,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:30:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:20,357 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 22:35:08,873 WARN L293 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 633 DAG size of output: 543 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:35:20,364 WARN L293 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 635 DAG size of output: 549 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:35:37,111 WARN L293 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 635 DAG size of output: 551 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:35:45,548 WARN L293 SmtUtils]: Spent 7.73s on a formula simplification. DAG size of input: 637 DAG size of output: 555 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:36:04,335 WARN L293 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 637 DAG size of output: 553 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:36:12,845 WARN L293 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 639 DAG size of output: 557 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:36:32,077 WARN L293 SmtUtils]: Spent 7.45s on a formula simplification. DAG size of input: 639 DAG size of output: 555 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:36:40,636 WARN L293 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 641 DAG size of output: 559 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:38:06,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 159 states and 344 transitions. [2023-12-02 22:38:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 344 transitions. [2023-12-02 22:38:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 22:38:06,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:06,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:38:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:39:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 174 states and 387 transitions. [2023-12-02 22:39:54,303 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 387 transitions. [2023-12-02 22:39:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 22:39:54,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:54,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:39:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.