./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC --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 befa5004268d4c15cae2c05402ac6cc0f86cef85e498084909e66f7e8cc4b8f3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:28:32,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:28:32,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:28:32,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:28:32,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:28:32,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:28:32,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:28:32,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:28:32,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:28:32,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:28:32,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:28:32,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:28:32,964 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:28:32,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:28:32,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:28:32,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:28:32,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:28:32,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:28:32,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:28:32,969 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:28:32,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:28:32,970 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:28:32,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:28:32,971 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:28:32,972 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:28:32,972 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:28:32,973 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:28:32,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:28:32,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:32,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:28:32,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:28:32,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:28:32,976 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:28:32,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:28:32,977 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:28:32,977 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_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> befa5004268d4c15cae2c05402ac6cc0f86cef85e498084909e66f7e8cc4b8f3 [2023-11-23 20:28:33,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:28:33,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:28:33,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:28:33,292 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:28:33,292 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:28:33,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c [2023-11-23 20:28:36,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:28:36,645 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:28:36,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c [2023-11-23 20:28:36,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/data/7d8f4254a/86b827300d3b4102a814c339f3e09b5f/FLAGca10fb098 [2023-11-23 20:28:36,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/data/7d8f4254a/86b827300d3b4102a814c339f3e09b5f [2023-11-23 20:28:36,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:28:36,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:28:36,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:36,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:28:36,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:28:36,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c7a905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36, skipping insertion in model container [2023-11-23 20:28:36,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,722 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:28:36,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:36,906 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:28:36,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:36,942 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:28:36,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36 WrapperNode [2023-11-23 20:28:36,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:36,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:36,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:28:36,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:28:36,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,983 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2023-11-23 20:28:36,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:36,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:28:36,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:28:36,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:28:36,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:37,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:37,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:37,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:37,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:37,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:28:37,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:28:37,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:28:37,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:28:37,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:37,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:37,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:28:37,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:28:37,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:28:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:28:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:28:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:28:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:28:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:28:37,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:28:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:28:37,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:28:37,186 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:28:37,188 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:28:37,517 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:28:37,580 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:28:37,580 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 20:28:37,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:37 BoogieIcfgContainer [2023-11-23 20:28:37,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:28:37,583 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:28:37,584 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:28:37,594 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:28:37,594 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:37" (1/1) ... [2023-11-23 20:28:37,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:28:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2023-11-23 20:28:37,660 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-11-23 20:28:37,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:28:37,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:37,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:38,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:38,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 55 transitions. [2023-11-23 20:28:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-23 20:28:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:28:38,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:38,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 56 transitions. [2023-11-23 20:28:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2023-11-23 20:28:38,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:28:38,352 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:38,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:38,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:28:38,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:38,573 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:38,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 48 states and 74 transitions. [2023-11-23 20:28:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 74 transitions. [2023-11-23 20:28:38,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:28:38,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:38,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:38,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:28:38,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 56 states and 93 transitions. [2023-11-23 20:28:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 93 transitions. [2023-11-23 20:28:39,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:28:39,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:39,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:39,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:28:39,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 57 states and 94 transitions. [2023-11-23 20:28:39,311 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 94 transitions. [2023-11-23 20:28:39,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:28:39,313 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:39,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:39,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:28:39,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 63 states and 102 transitions. [2023-11-23 20:28:39,694 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 102 transitions. [2023-11-23 20:28:39,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 20:28:39,704 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:39,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:39,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:28:39,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 70 states and 121 transitions. [2023-11-23 20:28:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 121 transitions. [2023-11-23 20:28:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 20:28:40,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:40,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:28:40,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 73 states and 126 transitions. [2023-11-23 20:28:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 126 transitions. [2023-11-23 20:28:40,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:28:40,970 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:41,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:28:41,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:41,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 74 states and 127 transitions. [2023-11-23 20:28:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 127 transitions. [2023-11-23 20:28:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:28:41,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:41,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:41,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:28:41,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:41,315 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:41,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 78 states and 134 transitions. [2023-11-23 20:28:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 134 transitions. [2023-11-23 20:28:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 20:28:41,651 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:41,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:41,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:28:41,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:28:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 90 states and 160 transitions. [2023-11-23 20:28:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 160 transitions. [2023-11-23 20:28:43,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 20:28:43,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:43,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:43,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:28:43,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:44,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 94 states and 163 transitions. [2023-11-23 20:28:44,879 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 163 transitions. [2023-11-23 20:28:44,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 20:28:44,882 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:44,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:44,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:28:44,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 98 states and 174 transitions. [2023-11-23 20:28:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 174 transitions. [2023-11-23 20:28:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 20:28:46,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:46,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:46,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:28:46,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:46,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 98 states and 171 transitions. [2023-11-23 20:28:46,899 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 171 transitions. [2023-11-23 20:28:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-23 20:28:46,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:46,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:46,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:28:46,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:48,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 105 states and 191 transitions. [2023-11-23 20:28:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 191 transitions. [2023-11-23 20:28:48,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-23 20:28:48,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:48,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:48,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:28:48,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:48,472 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 107 states and 193 transitions. [2023-11-23 20:28:48,778 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 193 transitions. [2023-11-23 20:28:48,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 20:28:48,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:48,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:48,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:28:48,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:48,904 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:48,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 108 states and 197 transitions. [2023-11-23 20:28:48,974 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 197 transitions. [2023-11-23 20:28:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 20:28:48,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:48,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:49,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:28:49,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:49,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 112 states and 207 transitions. [2023-11-23 20:28:49,786 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 207 transitions. [2023-11-23 20:28:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 20:28:49,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:49,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:49,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:28:49,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:51,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 116 states and 211 transitions. [2023-11-23 20:28:51,194 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 211 transitions. [2023-11-23 20:28:51,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 20:28:51,195 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:51,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:51,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 20:28:51,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:51,521 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:52,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 122 states and 230 transitions. [2023-11-23 20:28:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 230 transitions. [2023-11-23 20:28:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 20:28:52,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:52,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:52,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:28:52,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 129 states and 250 transitions. [2023-11-23 20:28:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 250 transitions. [2023-11-23 20:28:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 20:28:54,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:54,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:54,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:28:54,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 134 states and 257 transitions. [2023-11-23 20:28:55,194 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 257 transitions. [2023-11-23 20:28:55,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 20:28:55,195 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:55,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:55,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:28:55,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:55,336 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 136 states and 259 transitions. [2023-11-23 20:28:55,700 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 259 transitions. [2023-11-23 20:28:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-23 20:28:55,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:55,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:55,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:28:55,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 137 states and 259 transitions. [2023-11-23 20:28:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 259 transitions. [2023-11-23 20:28:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-23 20:28:55,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:55,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:55,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:28:55,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:56,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 141 states and 263 transitions. [2023-11-23 20:28:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 263 transitions. [2023-11-23 20:28:56,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:28:56,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:56,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:56,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:28:56,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 142 states and 264 transitions. [2023-11-23 20:28:57,379 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 264 transitions. [2023-11-23 20:28:57,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:28:57,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:57,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:57,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:28:57,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:28:59,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:59,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 146 states and 271 transitions. [2023-11-23 20:28:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 271 transitions. [2023-11-23 20:28:59,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:28:59,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:59,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:59,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:28:59,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:00,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:00,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 148 states and 275 transitions. [2023-11-23 20:29:00,444 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 275 transitions. [2023-11-23 20:29:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:29:00,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:00,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:00,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:29:00,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:01,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:01,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 152 states and 281 transitions. [2023-11-23 20:29:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 281 transitions. [2023-11-23 20:29:01,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:29:01,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:01,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:01,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:29:01,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 152 states and 279 transitions. [2023-11-23 20:29:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 279 transitions. [2023-11-23 20:29:02,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:29:02,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:02,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:02,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:29:02,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:03,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:03,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 154 states and 280 transitions. [2023-11-23 20:29:03,608 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 280 transitions. [2023-11-23 20:29:03,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:29:03,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:03,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:03,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:29:03,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 154 states and 276 transitions. [2023-11-23 20:29:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 276 transitions. [2023-11-23 20:29:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:29:04,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:04,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:04,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:29:04,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:04,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 157 states and 282 transitions. [2023-11-23 20:29:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 282 transitions. [2023-11-23 20:29:04,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:29:04,872 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:04,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:04,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:29:04,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 164 states and 299 transitions. [2023-11-23 20:29:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 299 transitions. [2023-11-23 20:29:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:29:06,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:06,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:06,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:29:06,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 167 states and 302 transitions. [2023-11-23 20:29:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 302 transitions. [2023-11-23 20:29:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:29:07,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:07,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:07,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:29:07,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 170 states and 306 transitions. [2023-11-23 20:29:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 306 transitions. [2023-11-23 20:29:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:29:10,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:10,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:10,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 20:29:10,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:10,489 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:11,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 175 states and 319 transitions. [2023-11-23 20:29:11,104 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 319 transitions. [2023-11-23 20:29:11,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 20:29:11,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:11,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:29:11,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:11,468 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-23 20:29:12,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:12,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 175 states and 311 transitions. [2023-11-23 20:29:12,034 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 311 transitions. [2023-11-23 20:29:12,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 20:29:12,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:12,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:29:12,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-11-23 20:29:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 175 states and 306 transitions. [2023-11-23 20:29:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 306 transitions. [2023-11-23 20:29:12,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 20:29:12,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:12,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:12,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 20:29:13,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 179 states and 310 transitions. [2023-11-23 20:29:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 310 transitions. [2023-11-23 20:29:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 20:29:15,289 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:15,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:15,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 20:29:15,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:15,611 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:16,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:16,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 183 states and 315 transitions. [2023-11-23 20:29:16,733 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 315 transitions. [2023-11-23 20:29:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 20:29:16,734 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:16,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 20:29:16,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:18,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 187 states and 320 transitions. [2023-11-23 20:29:18,130 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 320 transitions. [2023-11-23 20:29:18,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 20:29:18,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:18,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:29:18,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 187 states and 314 transitions. [2023-11-23 20:29:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 314 transitions. [2023-11-23 20:29:19,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 20:29:19,471 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:19,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:29:19,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 132 states and 201 transitions. [2023-11-23 20:29:20,492 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 201 transitions. [2023-11-23 20:29:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 20:29:20,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:20,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:20,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 20:29:20,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:20,958 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 121 states and 183 transitions. [2023-11-23 20:29:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 183 transitions. [2023-11-23 20:29:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 20:29:21,476 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:21,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:21,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 20:29:21,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:29:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:29:23,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 120 states and 182 transitions. [2023-11-23 20:29:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 182 transitions. [2023-11-23 20:29:23,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:29:23,282 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 47 iterations. [2023-11-23 20:29:23,303 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-23 20:29:23,751 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:29:23,755 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:29:23,756 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:29:23,756 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:29:23,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:29:23 ImpRootNode [2023-11-23 20:29:23,756 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:29:23,757 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:29:23,757 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:29:23,758 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:29:23,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:37" (3/4) ... [2023-11-23 20:29:23,762 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:29:23,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 20:29:23,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 20:29:23,775 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-23 20:29:23,776 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 20:29:23,776 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 20:29:23,776 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:29:23,777 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:29:23,905 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:29:23,905 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:29:23,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:29:23,906 INFO L158 Benchmark]: Toolchain (without parser) took 47224.59ms. Allocated memory was 165.7MB in the beginning and 346.0MB in the end (delta: 180.4MB). Free memory was 118.8MB in the beginning and 185.6MB in the end (delta: -66.8MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. [2023-11-23 20:29:23,907 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:29:23,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.77ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 107.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:29:23,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.35ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 106.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:29:23,908 INFO L158 Benchmark]: Boogie Preprocessor took 25.59ms. Allocated memory is still 165.7MB. Free memory was 106.2MB in the beginning and 104.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:29:23,909 INFO L158 Benchmark]: RCFGBuilder took 567.28ms. Allocated memory is still 165.7MB. Free memory was 104.7MB in the beginning and 90.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:29:23,909 INFO L158 Benchmark]: CodeCheck took 46173.15ms. Allocated memory was 165.7MB in the beginning and 346.0MB in the end (delta: 180.4MB). Free memory was 90.0MB in the beginning and 190.9MB in the end (delta: -100.9MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2023-11-23 20:29:23,910 INFO L158 Benchmark]: Witness Printer took 148.79ms. Allocated memory is still 346.0MB. Free memory was 190.9MB in the beginning and 185.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:29:23,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 38 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 45.7s, OverallIterations: 47, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10662 SdHoareTripleChecker+Valid, 52.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7836 mSDsluCounter, 9239 SdHoareTripleChecker+Invalid, 43.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5220 mSDsCounter, 8869 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29330 IncrementalHoareTripleChecker+Invalid, 38199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8869 mSolverCounterUnsat, 4019 mSDtfsCounter, 29330 mSolverCounterSat, 1.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21190 GetRequests, 19135 SyntacticMatches, 1637 SemanticMatches, 418 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106430 ImplicationChecksByTransitivity, 36.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 2195 NumberOfCodeBlocks, 2195 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 2149 ConstructedInterpolants, 0 QuantifiedInterpolants, 6305 SizeOfPredicates, 348 NumberOfNonLiveVariables, 6712 ConjunctsInSsa, 445 ConjunctsInUnsatCore, 46 InterpolantComputations, 21 PerfectInterpolantSequences, 1289/1943 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.77ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 107.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.35ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 106.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.59ms. Allocated memory is still 165.7MB. Free memory was 106.2MB in the beginning and 104.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.28ms. Allocated memory is still 165.7MB. Free memory was 104.7MB in the beginning and 90.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 46173.15ms. Allocated memory was 165.7MB in the beginning and 346.0MB in the end (delta: 180.4MB). Free memory was 90.0MB in the beginning and 190.9MB in the end (delta: -100.9MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. * Witness Printer took 148.79ms. Allocated memory is still 346.0MB. Free memory was 190.9MB in the beginning and 185.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:29:24,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4727edeb-ea30-4b34-86f3-98900112fff5/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE