./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/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_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8eb1c4cff73de825c0246f8cf2782e4a89e8227445b840b0a85ffef021d29c3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:11:20,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:11:20,435 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 23:11:20,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:11:20,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:11:20,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:11:20,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:11:20,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:11:20,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:11:20,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:11:20,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:11:20,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:11:20,494 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:11:20,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:11:20,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:11:20,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:11:20,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:11:20,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:11:20,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:11:20,498 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:11:20,499 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:11:20,500 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:11:20,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:11:20,500 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:11:20,501 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:11:20,503 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:11:20,503 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:11:20,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:11:20,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:20,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:11:20,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:11:20,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:11:20,507 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:11:20,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:11:20,507 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:11:20,507 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_6daa7f15-2089-4e58-b6a5-fc74eee335ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8eb1c4cff73de825c0246f8cf2782e4a89e8227445b840b0a85ffef021d29c3 [2023-11-24 23:11:20,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:11:20,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:11:20,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:11:20,868 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:11:20,869 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:11:20,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c [2023-11-24 23:11:24,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:11:24,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:11:24,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c [2023-11-24 23:11:24,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/data/2888539a4/8a9590435b37441ab8671e6c8e26b1a7/FLAGa79bc27ca [2023-11-24 23:11:24,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/data/2888539a4/8a9590435b37441ab8671e6c8e26b1a7 [2023-11-24 23:11:24,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:11:24,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:11:24,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:24,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:11:24,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:11:24,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab57e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24, skipping insertion in model container [2023-11-24 23:11:24,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,358 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:11:24,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:24,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:11:24,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:24,592 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:11:24,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24 WrapperNode [2023-11-24 23:11:24,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:24,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:24,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:11:24,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:11:24,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,664 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2023-11-24 23:11:24,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:24,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:11:24,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:11:24,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:11:24,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:11:24,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:11:24,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:11:24,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:11:24,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:24" (1/1) ... [2023-11-24 23:11:24,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:24,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:11:24,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:11:24,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6daa7f15-2089-4e58-b6a5-fc74eee335ab/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:11:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:11:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:11:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:11:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:11:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:11:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:11:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:11:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:11:24,925 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:11:24,928 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:11:25,627 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:11:25,678 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:11:25,679 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:11:25,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:25 BoogieIcfgContainer [2023-11-24 23:11:25,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:11:25,682 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:11:25,682 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:11:25,694 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:11:25,694 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:25" (1/1) ... [2023-11-24 23:11:25,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:11:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 131 states and 136 transitions. [2023-11-24 23:11:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 136 transitions. [2023-11-24 23:11:25,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:11:25,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:25,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:25,977 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 23:11:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 130 states and 135 transitions. [2023-11-24 23:11:26,030 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2023-11-24 23:11:26,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:11:26,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,113 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 23:11:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 129 states and 134 transitions. [2023-11-24 23:11:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2023-11-24 23:11:26,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:11:26,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,260 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 23:11:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 128 states and 133 transitions. [2023-11-24 23:11:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2023-11-24 23:11:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:11:26,295 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,335 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 23:11:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 127 states and 132 transitions. [2023-11-24 23:11:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2023-11-24 23:11:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:11:26,359 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,376 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 23:11:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 126 states and 131 transitions. [2023-11-24 23:11:26,382 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 131 transitions. [2023-11-24 23:11:26,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:11:26,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:11:26,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:26,485 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 23:11:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 125 states and 130 transitions. [2023-11-24 23:11:26,548 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2023-11-24 23:11:26,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:11:26,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:11:26,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 124 states and 129 transitions. [2023-11-24 23:11:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 129 transitions. [2023-11-24 23:11:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:11:26,699 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:11:26,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:26,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 123 states and 128 transitions. [2023-11-24 23:11:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 128 transitions. [2023-11-24 23:11:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 23:11:26,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:26,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:11:26,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:26,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 122 states and 127 transitions. [2023-11-24 23:11:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2023-11-24 23:11:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 23:11:26,942 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:26,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:27,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:11:27,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:27,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:27,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 121 states and 126 transitions. [2023-11-24 23:11:27,083 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2023-11-24 23:11:27,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 23:11:27,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:27,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:27,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:11:27,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 120 states and 125 transitions. [2023-11-24 23:11:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2023-11-24 23:11:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:11:27,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:27,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:27,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:11:27,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:11:27,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 119 states and 124 transitions. [2023-11-24 23:11:27,928 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2023-11-24 23:11:27,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:11:27,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:27,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:27,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:11:27,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:28,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:28,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 118 states and 123 transitions. [2023-11-24 23:11:28,248 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2023-11-24 23:11:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:11:28,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:28,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:28,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:11:28,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:11:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 117 states and 122 transitions. [2023-11-24 23:11:28,825 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 122 transitions. [2023-11-24 23:11:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:11:28,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:28,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:11:28,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:28,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 117 states and 121 transitions. [2023-11-24 23:11:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2023-11-24 23:11:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:11:28,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:28,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:28,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:11:28,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 119 states and 125 transitions. [2023-11-24 23:11:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 125 transitions. [2023-11-24 23:11:29,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:11:29,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:29,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:30,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:11:30,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 122 states and 130 transitions. [2023-11-24 23:11:31,505 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 130 transitions. [2023-11-24 23:11:31,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:11:31,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:31,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:31,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:11:31,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:32,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 127 states and 141 transitions. [2023-11-24 23:11:32,517 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 141 transitions. [2023-11-24 23:11:32,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:11:32,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:32,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:32,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:11:32,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 132 states and 152 transitions. [2023-11-24 23:11:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 152 transitions. [2023-11-24 23:11:34,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 23:11:34,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:34,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:34,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:11:34,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:11:36,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:36,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 138 states and 165 transitions. [2023-11-24 23:11:36,002 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2023-11-24 23:11:36,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 23:11:36,003 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:36,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:11:36,034 INFO L285 TraceCheckSpWp]: Computing forward predicates...