./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.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_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/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_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/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_8437fbbf-43a3-4d38-9427-2a997686378c/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 52f795f47ad9dd0b1b0499f649b5f623fed211e53433ed6d87534c63dbfae98b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:31:44,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:31:44,477 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:31:44,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:31:44,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:31:44,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:31:44,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:31:44,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:31:44,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:31:44,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:31:44,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:31:44,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:31:44,509 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:31:44,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:31:44,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:31:44,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:31:44,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:31:44,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:31:44,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:31:44,513 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:31:44,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:31:44,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:31:44,514 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:31:44,515 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:31:44,515 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:31:44,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:31:44,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:31:44,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:31:44,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:31:44,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:31:44,518 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:31:44,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:31:44,519 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:31:44,520 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_8437fbbf-43a3-4d38-9427-2a997686378c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f795f47ad9dd0b1b0499f649b5f623fed211e53433ed6d87534c63dbfae98b [2023-12-03 01:31:44,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:31:44,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:31:44,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:31:44,776 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:31:44,777 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:31:44,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2023-12-03 01:31:47,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:31:47,661 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:31:47,661 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2023-12-03 01:31:47,672 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/data/cf5de1039/340926dd8d5446ba89c03c1b8b9ff686/FLAG22f895b07 [2023-12-03 01:31:47,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/data/cf5de1039/340926dd8d5446ba89c03c1b8b9ff686 [2023-12-03 01:31:47,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:31:47,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:31:47,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:31:47,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:31:47,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:31:47,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:47,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12dbe8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47, skipping insertion in model container [2023-12-03 01:31:47,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:47,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:31:47,896 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_8437fbbf-43a3-4d38-9427-2a997686378c/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c[8305,8318] [2023-12-03 01:31:47,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:31:47,910 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:31:47,951 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_8437fbbf-43a3-4d38-9427-2a997686378c/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c[8305,8318] [2023-12-03 01:31:47,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:31:47,968 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:31:47,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47 WrapperNode [2023-12-03 01:31:47,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:31:47,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:31:47,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:31:47,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:31:47,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:47,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,016 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 274 [2023-12-03 01:31:48,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:31:48,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:31:48,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:31:48,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:31:48,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:31:48,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:31:48,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:31:48,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:31:48,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:31:47" (1/1) ... [2023-12-03 01:31:48,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:31:48,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:31:48,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:31:48,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8437fbbf-43a3-4d38-9427-2a997686378c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:31:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:31:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:31:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:31:48,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:31:48,197 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:31:48,199 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:31:48,542 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:31:48,886 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:31:48,887 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:31:48,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:31:48 BoogieIcfgContainer [2023-12-03 01:31:48,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:31:48,889 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:31:48,889 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:31:48,899 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:31:48,899 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:31:48" (1/1) ... [2023-12-03 01:31:48,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:31:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-03 01:31:48,962 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-03 01:31:48,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 01:31:48,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:31:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2023-12-03 01:31:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2023-12-03 01:31:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:31:49,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:49,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:31:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2023-12-03 01:31:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2023-12-03 01:31:50,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:31:50,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:50,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:51,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:31:51,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:51,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-12-03 01:31:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-12-03 01:31:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:31:51,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:31:52,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2023-12-03 01:31:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2023-12-03 01:31:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:31:52,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:31:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2023-12-03 01:31:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2023-12-03 01:31:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:31:58,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:58,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:02,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 41 states and 65 transitions. [2023-12-03 01:32:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 65 transitions. [2023-12-03 01:32:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:32:02,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:02,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 50 states and 79 transitions. [2023-12-03 01:32:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 79 transitions. [2023-12-03 01:32:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:32:10,182 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:10,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 61 states and 99 transitions. [2023-12-03 01:32:19,831 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 99 transitions. [2023-12-03 01:32:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 01:32:19,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:19,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 71 states and 131 transitions. [2023-12-03 01:32:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 131 transitions. [2023-12-03 01:32:28,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:32:28,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:28,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:34,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 79 states and 157 transitions. [2023-12-03 01:32:34,135 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 157 transitions. [2023-12-03 01:32:34,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:32:34,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:34,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:40,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:40,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 89 states and 188 transitions. [2023-12-03 01:32:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 188 transitions. [2023-12-03 01:32:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:32:40,487 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:40,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:41,062 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 97 states and 203 transitions. [2023-12-03 01:32:44,524 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 203 transitions. [2023-12-03 01:32:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:32:44,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:44,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 98 states and 208 transitions. [2023-12-03 01:32:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 208 transitions. [2023-12-03 01:32:45,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:32:45,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:45,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:32:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:34:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:34:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 123 states and 270 transitions. [2023-12-03 01:34:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 270 transitions. [2023-12-03 01:34:25,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:34:25,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:34:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:34:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:35:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:36:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:36:56,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 147 states and 338 transitions. [2023-12-03 01:36:56,865 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 338 transitions. [2023-12-03 01:36:56,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 01:36:56,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:36:56,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:36:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:36:58,485 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:37:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:37:08,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 157 states and 371 transitions. [2023-12-03 01:37:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 371 transitions. [2023-12-03 01:37:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 01:37:08,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:37:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:37:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:39:33,191 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:40:05,213 WARN L293 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 629 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:40:19,124 WARN L293 SmtUtils]: Spent 8.68s on a formula simplification. DAG size of input: 627 DAG size of output: 564 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:40:38,960 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification. DAG size of input: 627 DAG size of output: 524 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:40:48,315 WARN L293 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 625 DAG size of output: 562 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:41:09,303 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 605 DAG size of output: 536 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:41:15,669 WARN L293 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 607 DAG size of output: 570 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:41:23,556 WARN L293 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 537 DAG size of output: 531 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:41:37,871 WARN L293 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 606 DAG size of output: 537 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:41:44,534 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 608 DAG size of output: 571 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:41:59,961 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 572 DAG size of output: 570 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:42:08,736 WARN L293 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 598 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:42:15,845 WARN L293 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 600 DAG size of output: 563 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:42:23,669 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 530 DAG size of output: 524 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:43:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:43:00,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 182 states and 433 transitions. [2023-12-03 01:43:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 433 transitions. [2023-12-03 01:43:00,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 01:43:00,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:43:00,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:43:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:44:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:44:32,331 WARN L293 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 632 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:44:45,917 WARN L293 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 634 DAG size of output: 606 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:45:11,955 WARN L293 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 630 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:45:23,508 WARN L293 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 632 DAG size of output: 605 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:45:53,977 WARN L293 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 637 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:46:05,387 WARN L293 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 639 DAG size of output: 610 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)