./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound100.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_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi --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 544518f16c995eb36950e2b23195c44efaa0ec21905798c152f246cf5cd9bc9b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:18:18,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:18:18,525 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:18:18,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:18:18,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:18:18,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:18:18,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:18:18,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:18:18,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:18:18,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:18:18,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:18:18,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:18:18,589 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:18:18,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:18:18,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:18:18,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:18:18,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:18:18,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:18:18,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:18:18,594 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:18:18,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:18:18,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:18:18,596 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:18:18,596 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:18:18,597 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:18:18,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:18:18,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:18,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:18:18,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:18:18,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:18:18,600 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:18:18,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:18:18,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:18:18,603 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_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 544518f16c995eb36950e2b23195c44efaa0ec21905798c152f246cf5cd9bc9b [2023-11-24 22:18:18,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:18:18,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:18:18,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:18:18,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:18:18,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:18:18,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound100.c [2023-11-24 22:18:22,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:18:22,566 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:18:22,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound100.c [2023-11-24 22:18:22,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/data/bd8095af0/02a4e3d0c35a4efaae0d07e24020ad62/FLAG7a8c59ad8 [2023-11-24 22:18:22,595 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/data/bd8095af0/02a4e3d0c35a4efaae0d07e24020ad62 [2023-11-24 22:18:22,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:18:22,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:18:22,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:22,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:18:22,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:18:22,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50396fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22, skipping insertion in model container [2023-11-24 22:18:22,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:18:22,793 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_07e814d7-157c-4586-ac3d-4b37065d95da/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound100.c[458,471] [2023-11-24 22:18:22,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:22,821 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:18:22,835 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_07e814d7-157c-4586-ac3d-4b37065d95da/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound100.c[458,471] [2023-11-24 22:18:22,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:22,857 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:18:22,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22 WrapperNode [2023-11-24 22:18:22,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:22,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:22,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:18:22,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:18:22,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,890 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-11-24 22:18:22,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:22,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:18:22,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:18:22,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:18:22,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:18:22,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:18:22,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:18:22,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:18:22,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:22" (1/1) ... [2023-11-24 22:18:22,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:22,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:18:22,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:18:22,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e814d7-157c-4586-ac3d-4b37065d95da/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:18:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:18:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:18:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:18:22,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:18:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:18:22,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:18:23,055 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:18:23,058 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:18:23,193 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:18:23,258 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:18:23,258 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:18:23,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:23 BoogieIcfgContainer [2023-11-24 22:18:23,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:18:23,261 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:18:23,261 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:18:23,298 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:18:23,298 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:23" (1/1) ... [2023-11-24 22:18:23,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:18:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2023-11-24 22:18:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-11-24 22:18:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:18:23,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:23,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 22:18:23,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:18:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:23,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-11-24 22:18:23,764 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-11-24 22:18:23,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:18:23,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:23,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:18:23,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:18:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:24,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-11-24 22:18:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-11-24 22:18:24,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:18:24,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:24,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:24,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 22:18:24,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:18:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-11-24 22:18:24,717 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-24 22:18:24,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:18:24,719 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:24,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:24,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-24 22:18:24,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:18:25,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-11-24 22:18:25,138 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-11-24 22:18:25,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 22:18:25,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:25,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:25,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 22:18:25,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:18:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-11-24 22:18:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-11-24 22:18:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 22:18:25,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:25,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:25,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-24 22:18:25,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-24 22:18:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:26,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2023-11-24 22:18:26,354 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2023-11-24 22:18:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 22:18:26,357 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:26,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:26,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-24 22:18:26,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 17 proven. 51 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 22:18:27,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:27,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-11-24 22:18:27,202 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-11-24 22:18:27,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 22:18:27,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:27,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:27,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-24 22:18:27,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 23 proven. 61 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-24 22:18:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2023-11-24 22:18:28,209 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2023-11-24 22:18:28,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-24 22:18:28,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:28,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:28,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-24 22:18:28,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 27 proven. 94 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-24 22:18:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:29,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2023-11-24 22:18:29,351 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2023-11-24 22:18:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-24 22:18:29,352 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:18:31,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-24 22:18:31,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:18:42,029 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-24 22:19:24,133 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)