./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f865ce2403889b362eca5ba5c175d767c3667187f591deab49a0624f78852be2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:09:26,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:09:26,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:09:26,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:09:26,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:09:26,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:09:26,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:09:26,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:09:26,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:09:26,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:09:26,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:09:26,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:09:26,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:09:26,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:09:26,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:09:26,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:09:26,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:09:26,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:09:26,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:09:26,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:09:26,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:09:26,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:09:26,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:09:26,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:09:26,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:09:26,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:09:26,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:09:26,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:09:26,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:09:26,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:09:26,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:09:26,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:09:26,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:09:26,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:09:26,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:09:26,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:09:26,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:09:26,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:09:26,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:09:26,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:09:26,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:09:26,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:09:26,312 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:09:26,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:09:26,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:09:26,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:09:26,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:09:26,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:09:26,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:09:26,315 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:09:26,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:09:26,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:09:26,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:09:26,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:09:26,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:09:26,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:09:26,324 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:09:26,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:09:26,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:09:26,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:09:26,325 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:09:26,325 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:09:26,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:09:26,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:09:26,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:09:26,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:09:26,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:09:26,327 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:09:26,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:09:26,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:09:26,327 INFO L138 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_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f865ce2403889b362eca5ba5c175d767c3667187f591deab49a0624f78852be2 [2021-11-22 23:09:26,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:09:26,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:09:26,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:09:26,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:09:26,614 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:09:26,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound50.c [2021-11-22 23:09:26,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/data/7f5e50eba/46e50d4e67d9419b9c7cc913bbc00cfd/FLAG62e163d4a [2021-11-22 23:09:27,110 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:09:27,113 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound50.c [2021-11-22 23:09:27,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/data/7f5e50eba/46e50d4e67d9419b9c7cc913bbc00cfd/FLAG62e163d4a [2021-11-22 23:09:27,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/data/7f5e50eba/46e50d4e67d9419b9c7cc913bbc00cfd [2021-11-22 23:09:27,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:09:27,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:09:27,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:09:27,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:09:27,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:09:27,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a80c670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27, skipping insertion in model container [2021-11-22 23:09:27,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:09:27,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:09:27,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound50.c[525,538] [2021-11-22 23:09:27,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:09:27,766 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:09:27,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound50.c[525,538] [2021-11-22 23:09:27,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:09:27,813 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:09:27,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27 WrapperNode [2021-11-22 23:09:27,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:09:27,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:09:27,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:09:27,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:09:27,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,852 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2021-11-22 23:09:27,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:09:27,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:09:27,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:09:27,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:09:27,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:09:27,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:09:27,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:09:27,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:09:27,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:27" (1/1) ... [2021-11-22 23:09:27,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:09:27,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:09:27,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:09:27,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d532369-7b2a-458d-b80a-7e9e2cdf6903/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:09:27,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:09:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:09:27,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:09:27,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:09:27,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:09:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:09:28,053 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:09:28,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:09:28,211 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:09:28,229 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:09:28,229 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:09:28,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:09:28 BoogieIcfgContainer [2021-11-22 23:09:28,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:09:28,233 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:09:28,233 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:09:28,243 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:09:28,244 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:09:28" (1/1) ... [2021-11-22 23:09:28,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-11-22 23:09:28,344 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-22 23:09:28,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:09:28,349 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:28,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:28,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 23:09:28,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:28,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-22 23:09:28,578 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-22 23:09:28,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:09:28,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:28,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:28,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:09:28,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:28,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2021-11-22 23:09:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-22 23:09:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:09:28,735 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:28,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:28,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:09:28,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:29,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2021-11-22 23:09:29,334 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-22 23:09:29,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:09:29,335 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:29,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:29,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:09:29,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2021-11-22 23:09:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2021-11-22 23:09:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 23:09:29,851 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:29,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:29,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:09:29,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:29,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 55 transitions. [2021-11-22 23:09:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-22 23:09:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 23:09:30,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:30,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:31,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:09:31,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:33,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:33,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 38 states and 75 transitions. [2021-11-22 23:09:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 75 transitions. [2021-11-22 23:09:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 23:09:33,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:33,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:33,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:09:33,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:35,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 41 states and 85 transitions. [2021-11-22 23:09:35,446 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 85 transitions. [2021-11-22 23:09:35,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:09:35,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:35,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:35,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:09:35,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:09:56,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 47 states and 101 transitions. [2021-11-22 23:09:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 101 transitions. [2021-11-22 23:09:56,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:09:56,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:56,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:56,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:09:56,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:57,169 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:10:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:02,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 55 states and 131 transitions. [2021-11-22 23:10:02,336 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 131 transitions. [2021-11-22 23:10:02,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:10:02,338 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:02,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:02,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:10:02,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:10:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 58 states and 141 transitions. [2021-11-22 23:10:07,747 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 141 transitions. [2021-11-22 23:10:07,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:10:07,749 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:07,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:07,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:10:07,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:10:09,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 59 states and 144 transitions. [2021-11-22 23:10:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 144 transitions. [2021-11-22 23:10:09,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:10:09,062 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:09,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:09,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:10:09,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:10:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 60 states and 148 transitions. [2021-11-22 23:10:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 148 transitions. [2021-11-22 23:10:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:10:10,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:10,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:10,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:10:10,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:10:26,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 62 states and 152 transitions. [2021-11-22 23:10:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 152 transitions. [2021-11-22 23:10:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:10:26,434 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:26,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:26,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:10:26,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:26,515 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:10:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 62 states and 151 transitions. [2021-11-22 23:10:27,740 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 151 transitions. [2021-11-22 23:10:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:10:27,741 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:27,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:27,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:27,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:10:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:44,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 66 states and 165 transitions. [2021-11-22 23:10:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 165 transitions. [2021-11-22 23:10:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:10:44,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:44,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:44,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:10:44,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:11:08,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 74 states and 203 transitions. [2021-11-22 23:11:08,717 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 203 transitions. [2021-11-22 23:11:08,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:11:08,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:08,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:08,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 23:11:08,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:11:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:25,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 76 states and 204 transitions. [2021-11-22 23:11:25,746 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 204 transitions. [2021-11-22 23:11:25,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:11:25,747 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:25,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:25,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:11:25,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:11:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 77 states and 206 transitions. [2021-11-22 23:11:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 206 transitions. [2021-11-22 23:11:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:11:30,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:30,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:31,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 23:11:31,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:11:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 81 states and 222 transitions. [2021-11-22 23:11:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 222 transitions. [2021-11-22 23:11:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:11:43,057 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:43,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:43,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:11:43,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:12:06,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 82 states and 224 transitions. [2021-11-22 23:12:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 224 transitions. [2021-11-22 23:12:06,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:12:06,163 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:06,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:06,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:12:06,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:12:26,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 85 states and 231 transitions. [2021-11-22 23:12:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 231 transitions. [2021-11-22 23:12:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:12:26,518 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:26,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:26,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:12:26,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:12:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 90 states and 251 transitions. [2021-11-22 23:12:56,185 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 251 transitions. [2021-11-22 23:12:56,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:12:56,186 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:56,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:56,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:12:56,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:13:17,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:17,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 94 states and 258 transitions. [2021-11-22 23:13:17,363 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 258 transitions. [2021-11-22 23:13:17,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:13:17,364 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:17,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:17,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:13:17,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:20,316 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:13:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 102 states and 305 transitions. [2021-11-22 23:13:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 305 transitions. [2021-11-22 23:13:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:13:48,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:48,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:48,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:13:48,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:14:13,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 107 states and 338 transitions. [2021-11-22 23:14:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 338 transitions. [2021-11-22 23:14:13,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:14:13,559 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:13,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:13,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:14:13,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:14:32,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 111 states and 347 transitions. [2021-11-22 23:14:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 347 transitions. [2021-11-22 23:14:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:14:32,274 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:32,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:32,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:14:32,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:14:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 111 states and 346 transitions. [2021-11-22 23:14:40,755 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 346 transitions. [2021-11-22 23:14:40,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:14:40,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:40,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:40,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:14:40,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:14:43,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:43,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 112 states and 348 transitions. [2021-11-22 23:14:43,453 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 348 transitions. [2021-11-22 23:14:43,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:14:43,454 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:43,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:43,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-22 23:14:43,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:15:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 115 states and 353 transitions. [2021-11-22 23:15:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 353 transitions. [2021-11-22 23:15:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:15:13,896 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:13,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:14,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:15:14,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:15:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:15:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 118 states and 372 transitions. [2021-11-22 23:15:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 372 transitions. [2021-11-22 23:15:44,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:15:44,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:44,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:44,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-22 23:15:44,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:15:45,339 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:16:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 121 states and 375 transitions. [2021-11-22 23:16:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 375 transitions. [2021-11-22 23:16:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:16:05,541 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:05,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:05,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:16:05,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:16:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 122 states and 379 transitions. [2021-11-22 23:16:13,310 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 379 transitions. [2021-11-22 23:16:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:16:13,311 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:13,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:13,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:16:13,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:16:20,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 123 states and 382 transitions. [2021-11-22 23:16:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 382 transitions. [2021-11-22 23:16:20,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:16:20,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:20,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:20,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:16:20,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:16:27,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 123 states and 381 transitions. [2021-11-22 23:16:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 381 transitions. [2021-11-22 23:16:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:16:27,437 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:27,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:27,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:16:27,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:27,536 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:16:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:34,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 123 states and 380 transitions. [2021-11-22 23:16:34,740 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 380 transitions. [2021-11-22 23:16:34,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:16:34,742 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:34,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:34,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:16:34,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:17:24,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:17:24,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:17:24,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 127 states and 399 transitions. [2021-11-22 23:17:24,955 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 399 transitions. [2021-11-22 23:17:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:17:24,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:17:24,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:17:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:17:24,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:17:24,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:17:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:18:12,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 135 states and 465 transitions. [2021-11-22 23:18:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 465 transitions. [2021-11-22 23:18:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:18:12,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:12,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:12,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-22 23:18:12,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:18:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 139 states and 477 transitions. [2021-11-22 23:18:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 477 transitions. [2021-11-22 23:18:34,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:18:34,999 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:34,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:35,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:18:35,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:18:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:47,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 142 states and 487 transitions. [2021-11-22 23:18:47,286 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 487 transitions. [2021-11-22 23:18:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:18:47,287 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:47,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:47,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:18:47,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:18:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 142 states and 486 transitions. [2021-11-22 23:18:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 486 transitions. [2021-11-22 23:18:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:18:51,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:51,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:52,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-22 23:18:52,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 21 proven. 56 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:20:01,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 149 states and 511 transitions. [2021-11-22 23:20:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 511 transitions. [2021-11-22 23:20:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:20:01,299 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:01,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:01,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-22 23:20:01,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 21 proven. 56 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:20:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 152 states and 514 transitions. [2021-11-22 23:20:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 514 transitions. [2021-11-22 23:20:43,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:20:43,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:43,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:43,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:20:43,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:20:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 153 states and 518 transitions. [2021-11-22 23:20:56,808 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 518 transitions. [2021-11-22 23:20:56,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:20:56,809 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:56,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:57,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-22 23:20:57,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 17 proven. 66 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:21:28,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 155 states and 520 transitions. [2021-11-22 23:21:28,345 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 520 transitions. [2021-11-22 23:21:28,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:21:28,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:28,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:28,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:21:28,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:21:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 156 states and 524 transitions. [2021-11-22 23:21:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 524 transitions. [2021-11-22 23:21:44,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:21:44,517 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:44,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:44,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-22 23:21:44,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:22:43,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:22:43,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 161 states and 530 transitions. [2021-11-22 23:22:43,577 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 530 transitions. [2021-11-22 23:22:43,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:22:43,578 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:22:43,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:22:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:22:44,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 23:22:44,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 26 proven. 57 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.