./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/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_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/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_1f16008f-dc24-4fe6-bed7-9bb07ed85892/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 ee8fbf7ad7c769bb660b4c416c89e8a6070f0c88820552e25f4a5ca5398fd5ca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:33:04,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:33:04,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:33:04,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:33:04,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:33:04,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:33:04,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:33:04,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:33:04,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:33:04,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:33:04,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:33:04,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:33:04,428 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:33:04,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:33:04,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:33:04,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:33:04,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:33:04,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:33:04,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:33:04,431 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:33:04,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:33:04,433 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:33:04,433 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:33:04,434 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:33:04,434 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:33:04,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:33:04,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:33:04,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:33:04,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:33:04,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:33:04,437 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:33:04,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:33:04,437 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:33:04,438 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_1f16008f-dc24-4fe6-bed7-9bb07ed85892/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee8fbf7ad7c769bb660b4c416c89e8a6070f0c88820552e25f4a5ca5398fd5ca [2023-12-03 01:33:04,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:33:04,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:33:04,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:33:04,666 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:33:04,667 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:33:04,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2023-12-03 01:33:07,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:33:07,585 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:33:07,586 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2023-12-03 01:33:07,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/data/97cbb5f24/b4e7ae3d7125454f8159a1fb148a3750/FLAG4fb993086 [2023-12-03 01:33:07,605 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/data/97cbb5f24/b4e7ae3d7125454f8159a1fb148a3750 [2023-12-03 01:33:07,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:33:07,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:33:07,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:33:07,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:33:07,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:33:07,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511bd40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07, skipping insertion in model container [2023-12-03 01:33:07,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:33:07,759 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_1f16008f-dc24-4fe6-bed7-9bb07ed85892/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2023-12-03 01:33:07,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:33:07,798 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:33:07,808 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_1f16008f-dc24-4fe6-bed7-9bb07ed85892/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2023-12-03 01:33:07,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:33:07,839 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:33:07,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07 WrapperNode [2023-12-03 01:33:07,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:33:07,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:33:07,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:33:07,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:33:07,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,877 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-12-03 01:33:07,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:33:07,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:33:07,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:33:07,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:33:07,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,902 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:33:07,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:33:07,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:33:07,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:33:07,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:33:07" (1/1) ... [2023-12-03 01:33:07,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:33:07,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:33:07,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:33:07,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f16008f-dc24-4fe6-bed7-9bb07ed85892/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:33:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:33:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:33:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:33:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:33:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 01:33:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 01:33:08,027 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:33:08,029 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:33:08,245 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:33:08,295 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:33:08,295 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 01:33:08,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:33:08 BoogieIcfgContainer [2023-12-03 01:33:08,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:33:08,297 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:33:08,298 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:33:08,308 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:33:08,308 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:33:08" (1/1) ... [2023-12-03 01:33:08,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:33:08,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:08,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 38 transitions. [2023-12-03 01:33:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2023-12-03 01:33:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:33:08,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:08,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:08,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:33:08,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:08,530 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 01:33:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:08,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2023-12-03 01:33:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2023-12-03 01:33:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:33:08,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:08,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:08,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:33:08,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:08,655 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 01:33:08,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2023-12-03 01:33:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2023-12-03 01:33:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:33:08,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:08,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:08,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:33:08,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:08,766 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 01:33:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:08,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2023-12-03 01:33:08,871 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2023-12-03 01:33:08,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:33:08,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:08,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:09,384 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 01:33:11,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:33:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:11,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 37 states and 68 transitions. [2023-12-03 01:33:11,687 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 68 transitions. [2023-12-03 01:33:11,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 01:33:11,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:11,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:11,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:33:11,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:33:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 39 states and 69 transitions. [2023-12-03 01:33:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 69 transitions. [2023-12-03 01:33:11,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:33:11,957 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:33:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 75 transitions. [2023-12-03 01:33:12,805 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2023-12-03 01:33:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:33:12,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:12,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:12,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:33:12,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:13,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:33:19,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:33:20,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 51 states and 96 transitions. [2023-12-03 01:33:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2023-12-03 01:33:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:33:20,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:20,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:33:20,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:20,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 39 states and 66 transitions. [2023-12-03 01:33:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2023-12-03 01:33:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 01:33:20,364 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:20,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:20,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:33:20,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:33:33,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:33:35,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:33:35,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:35,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 43 states and 74 transitions. [2023-12-03 01:33:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 74 transitions. [2023-12-03 01:33:35,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 01:33:35,590 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:35,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:35,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:33:35,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-03 01:33:35,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:35,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 43 states and 73 transitions. [2023-12-03 01:33:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 73 transitions. [2023-12-03 01:33:35,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 01:33:35,917 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:35,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:36,175 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 01:33:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 43 states and 70 transitions. [2023-12-03 01:33:36,668 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2023-12-03 01:33:36,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 01:33:36,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:36,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:36,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 01:33:36,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:33:48,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:33:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:33:48,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 47 states and 80 transitions. [2023-12-03 01:33:48,870 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 80 transitions. [2023-12-03 01:33:48,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 01:33:48,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:33:48,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:33:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:33:48,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:33:48,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:33:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:34:00,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:34:10,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:34:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:34:10,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 52 states and 89 transitions. [2023-12-03 01:34:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2023-12-03 01:34:10,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 01:34:10,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:34:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:34:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:34:10,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 01:34:10,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:34:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-03 01:34:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:34:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 52 states and 88 transitions. [2023-12-03 01:34:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 88 transitions. [2023-12-03 01:34:11,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 01:34:11,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:34:11,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:34:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:34:11,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 01:34:11,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:34:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 01:34:21,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:34:22,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:34:22,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 54 states and 93 transitions. [2023-12-03 01:34:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 93 transitions. [2023-12-03 01:34:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 01:34:22,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:34:22,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:34:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:34:22,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:34:22,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:34:39,828 WARN L293 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:34:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 01:34:45,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:34:55,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:34:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:34:55,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 56 states and 99 transitions. [2023-12-03 01:34:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 99 transitions. [2023-12-03 01:34:55,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:34:55,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:34:55,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:34:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:34:55,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:34:55,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:35:05,987 WARN L293 SmtUtils]: Spent 10.00s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:37:53,168 WARN L293 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:37:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 01:38:49,698 WARN L293 SmtUtils]: Spent 17.98s 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) [2023-12-03 01:38:59,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:41:30,777 WARN L293 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:41:46,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 14.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:41:46,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:41:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 58 states and 104 transitions. [2023-12-03 01:41:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 104 transitions. [2023-12-03 01:41:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:41:46,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:41:46,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:41:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:41:47,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:41:47,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:44:32,430 WARN L293 SmtUtils]: Spent 20.25s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:44:42,705 WARN L293 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:44:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-03 01:46:01,324 WARN L293 SmtUtils]: Spent 31.01s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:47:18,533 WARN L293 SmtUtils]: Spent 20.15s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)