./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-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_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/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_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/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_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/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 aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:36:42,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:36:42,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:36:42,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:36:42,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:36:42,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:36:42,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:36:42,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:36:42,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:36:42,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:36:42,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:36:42,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:36:42,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:36:42,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:36:42,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:36:42,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:36:42,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:36:42,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:36:42,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:36:42,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:36:42,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:36:42,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:36:42,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:36:42,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:36:42,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:36:42,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:36:42,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:36:42,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:36:42,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:36:42,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:36:42,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:36:42,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:36:42,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:36:42,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:36:42,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:36:42,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:36:42,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:36:42,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:36:42,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:36:42,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:36:42,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:36:42,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:36:42,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:36:42,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:36:42,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:36:42,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:36:42,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:36:42,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:36:42,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:36:42,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:36:42,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:36:42,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:36:42,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:36:42,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:36:42,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:36:42,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:36:42,780 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:36:42,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:36:42,780 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:36:42,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:36:42,781 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:36:42,781 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:36:42,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:36:42,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:36:42,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:36:42,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:36:42,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:36:42,783 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:36:42,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:36:42,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:36:42,784 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_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 [2021-11-23 00:36:43,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:36:43,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:36:43,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:36:43,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:36:43,153 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:36:43,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c [2021-11-23 00:36:43,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/data/af8c9060b/15b65971375d404097a26469ab47cf87/FLAG1d85363f4 [2021-11-23 00:36:43,778 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:36:43,779 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c [2021-11-23 00:36:43,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/data/af8c9060b/15b65971375d404097a26469ab47cf87/FLAG1d85363f4 [2021-11-23 00:36:44,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/data/af8c9060b/15b65971375d404097a26469ab47cf87 [2021-11-23 00:36:44,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:36:44,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:36:44,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:36:44,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:36:44,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:36:44,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbd6323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44, skipping insertion in model container [2021-11-23 00:36:44,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:36:44,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:36:44,326 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_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c[538,551] [2021-11-23 00:36:44,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:36:44,363 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:36:44,378 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_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c[538,551] [2021-11-23 00:36:44,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:36:44,413 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:36:44,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44 WrapperNode [2021-11-23 00:36:44,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:36:44,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:36:44,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:36:44,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:36:44,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,468 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-11-23 00:36:44,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:36:44,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:36:44,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:36:44,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:36:44,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:36:44,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:36:44,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:36:44,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:36:44,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:36:44,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:36:44,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:36:44,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f63588-7e9c-47fd-aa2a-fa14f5a0668c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:36:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:36:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:36:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:36:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:36:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:36:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:36:44,678 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:36:44,680 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:36:44,884 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:36:44,926 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:36:44,927 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 00:36:44,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:44 BoogieIcfgContainer [2021-11-23 00:36:44,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:36:44,946 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:36:44,946 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:36:44,969 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:36:44,969 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:44" (1/1) ... [2021-11-23 00:36:44,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:36:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:45,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 00:36:45,040 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 00:36:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:36:45,043 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:45,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:45,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 00:36:45,322 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 00:36:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:36:45,323 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:45,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2021-11-23 00:36:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2021-11-23 00:36:45,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:36:45,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:45,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2021-11-23 00:36:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2021-11-23 00:36:45,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:36:45,833 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:45,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2021-11-23 00:36:46,414 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2021-11-23 00:36:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:36:46,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:46,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:46,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:36:46,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:36:47,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2021-11-23 00:36:47,794 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2021-11-23 00:36:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:36:47,796 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:47,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:47,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:36:47,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:36:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 48 states and 95 transitions. [2021-11-23 00:36:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2021-11-23 00:36:49,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:36:49,292 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:49,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:49,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:36:49,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:36:50,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:50,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 52 states and 107 transitions. [2021-11-23 00:36:50,320 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 107 transitions. [2021-11-23 00:36:50,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:36:50,322 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:50,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:50,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:36:50,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:36:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 54 states and 112 transitions. [2021-11-23 00:36:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 112 transitions. [2021-11-23 00:36:50,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:36:50,843 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:50,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:50,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:36:50,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:36:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 59 states and 127 transitions. [2021-11-23 00:36:52,443 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 127 transitions. [2021-11-23 00:36:52,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:36:52,445 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:52,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:52,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:36:52,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:36:53,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 61 states and 128 transitions. [2021-11-23 00:36:53,213 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 128 transitions. [2021-11-23 00:36:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:36:53,215 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:53,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:53,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:36:53,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:36:57,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:57,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 66 states and 144 transitions. [2021-11-23 00:36:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 144 transitions. [2021-11-23 00:36:57,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:36:57,134 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:57,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:57,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:36:57,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:36:58,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:58,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 68 states and 145 transitions. [2021-11-23 00:36:58,348 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 145 transitions. [2021-11-23 00:36:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:36:58,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:58,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:58,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:36:58,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:36:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 71 states and 159 transitions. [2021-11-23 00:36:58,930 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 159 transitions. [2021-11-23 00:36:58,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:36:58,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:58,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:58,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:36:58,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:59,135 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:37:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 76 states and 173 transitions. [2021-11-23 00:37:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 173 transitions. [2021-11-23 00:37:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:37:01,273 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:01,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:01,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:37:01,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:01,546 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:37:02,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:02,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 78 states and 180 transitions. [2021-11-23 00:37:02,656 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 180 transitions. [2021-11-23 00:37:02,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:37:02,657 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:02,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:02,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:37:02,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:37:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 88 states and 241 transitions. [2021-11-23 00:37:06,560 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 241 transitions. [2021-11-23 00:37:06,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:37:06,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:06,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:06,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:37:06,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:37:13,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:13,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 94 states and 267 transitions. [2021-11-23 00:37:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 267 transitions. [2021-11-23 00:37:13,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:37:13,478 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:13,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:13,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:37:13,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:37:15,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 94 states and 266 transitions. [2021-11-23 00:37:15,746 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 266 transitions. [2021-11-23 00:37:15,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:37:15,747 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:15,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:15,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:37:15,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:37:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 94 states and 265 transitions. [2021-11-23 00:37:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 265 transitions. [2021-11-23 00:37:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:37:16,707 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:16,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:16,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:37:16,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:37:18,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 96 states and 273 transitions. [2021-11-23 00:37:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 273 transitions. [2021-11-23 00:37:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:37:18,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:18,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:18,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:37:18,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-23 00:37:22,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 99 states and 281 transitions. [2021-11-23 00:37:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 281 transitions. [2021-11-23 00:37:22,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:37:22,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:22,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:22,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:37:22,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-23 00:37:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 101 states and 283 transitions. [2021-11-23 00:37:24,744 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 283 transitions. [2021-11-23 00:37:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:37:24,746 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:24,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:24,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:37:24,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:37:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:32,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 107 states and 309 transitions. [2021-11-23 00:37:32,482 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 309 transitions. [2021-11-23 00:37:32,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:37:32,483 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:32,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:32,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:37:32,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:37:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:37,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 110 states and 313 transitions. [2021-11-23 00:37:37,133 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 313 transitions. [2021-11-23 00:37:37,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 00:37:37,134 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:37,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:37,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:37:37,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:37:40,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 112 states and 314 transitions. [2021-11-23 00:37:40,386 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 314 transitions. [2021-11-23 00:37:40,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:37:40,388 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:40,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:40,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:37:40,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:43,149 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:37:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 121 states and 354 transitions. [2021-11-23 00:37:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 354 transitions. [2021-11-23 00:37:56,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:37:56,575 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:56,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:56,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:37:56,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:37:57,779 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:38:05,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 125 states and 363 transitions. [2021-11-23 00:38:05,494 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 363 transitions. [2021-11-23 00:38:05,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:38:05,495 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:05,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:05,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:38:05,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:38:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 130 states and 383 transitions. [2021-11-23 00:38:11,628 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 383 transitions. [2021-11-23 00:38:11,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:38:11,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:11,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:11,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 00:38:11,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:38:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:15,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 132 states and 388 transitions. [2021-11-23 00:38:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 388 transitions. [2021-11-23 00:38:15,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 00:38:15,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:15,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:15,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:38:15,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 00:38:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 136 states and 443 transitions. [2021-11-23 00:38:20,372 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 443 transitions. [2021-11-23 00:38:20,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:38:20,374 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:20,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:20,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:38:20,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:38:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 139 states and 459 transitions. [2021-11-23 00:38:31,657 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 459 transitions. [2021-11-23 00:38:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:38:31,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:31,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:31,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:38:31,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:38:42,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 141 states and 463 transitions. [2021-11-23 00:38:42,059 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 463 transitions. [2021-11-23 00:38:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:38:42,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:42,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:42,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:38:42,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:38:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 143 states and 467 transitions. [2021-11-23 00:38:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 467 transitions. [2021-11-23 00:38:47,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:38:47,330 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:47,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:47,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:38:47,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:38:52,406 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:39:09,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:09,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 146 states and 494 transitions. [2021-11-23 00:39:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 494 transitions. [2021-11-23 00:39:09,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:39:09,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:09,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:09,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:39:09,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:39:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:25,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 149 states and 510 transitions. [2021-11-23 00:39:25,069 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 510 transitions. [2021-11-23 00:39:25,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:39:25,071 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:25,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:25,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:39:25,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:39:33,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 149 states and 509 transitions. [2021-11-23 00:39:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 509 transitions. [2021-11-23 00:39:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:39:33,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:33,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:33,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:39:33,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:39:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 152 states and 522 transitions. [2021-11-23 00:39:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 522 transitions. [2021-11-23 00:39:46,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:39:46,170 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:46,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:46,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:39:46,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:39:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 156 states and 526 transitions. [2021-11-23 00:39:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 526 transitions. [2021-11-23 00:39:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:39:57,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:57,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:57,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:39:57,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:39:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:40:01,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 156 states and 525 transitions. [2021-11-23 00:40:01,578 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 525 transitions. [2021-11-23 00:40:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 00:40:01,580 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:01,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:01,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:40:01,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:40:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:40:06,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:06,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 156 states and 524 transitions. [2021-11-23 00:40:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 524 transitions. [2021-11-23 00:40:06,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:40:06,742 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:06,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:06,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:40:06,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:40:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 00:40:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 158 states and 536 transitions. [2021-11-23 00:40:15,685 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 536 transitions. [2021-11-23 00:40:15,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:40:15,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:15,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:15,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:40:15,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:40:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 00:40:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 160 states and 541 transitions. [2021-11-23 00:40:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 541 transitions. [2021-11-23 00:40:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:40:40,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:40,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:40,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:40:40,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:40:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 25 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-23 00:40:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 162 states and 543 transitions. [2021-11-23 00:40:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 543 transitions. [2021-11-23 00:40:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 00:40:48,639 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:48,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:48,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:40:48,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:40:48,773 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-23 00:41:20,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:41:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 163 states and 544 transitions. [2021-11-23 00:41:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 544 transitions. [2021-11-23 00:41:20,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 00:41:20,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:41:20,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:41:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:41:20,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 00:41:20,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:41:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 00:41:55,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:41:55,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 166 states and 574 transitions. [2021-11-23 00:41:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 574 transitions. [2021-11-23 00:41:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 00:41:55,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:41:55,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:41:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:41:55,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:41:55,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:41:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 00:42:06,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 168 states and 582 transitions. [2021-11-23 00:42:06,246 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 582 transitions. [2021-11-23 00:42:06,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:42:06,248 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:06,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:06,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:42:06,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:42:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 174 states and 616 transitions. [2021-11-23 00:42:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 616 transitions. [2021-11-23 00:42:47,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:42:47,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:47,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:47,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:42:47,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:43:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 176 states and 617 transitions. [2021-11-23 00:43:00,659 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 617 transitions. [2021-11-23 00:43:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:43:00,660 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:00,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:00,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:00,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:43:26,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 179 states and 620 transitions. [2021-11-23 00:43:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 620 transitions. [2021-11-23 00:43:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 00:43:26,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:26,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:26,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:26,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:43:49,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 182 states and 623 transitions. [2021-11-23 00:43:49,519 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 623 transitions. [2021-11-23 00:43:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 00:43:49,520 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:49,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:49,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:43:49,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:44:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:44:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 183 states and 628 transitions. [2021-11-23 00:44:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 628 transitions. [2021-11-23 00:44:20,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:44:20,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:20,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:20,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 00:44:20,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:44:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:45:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 192 states and 683 transitions. [2021-11-23 00:45:44,865 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 683 transitions. [2021-11-23 00:45:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:45:44,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:44,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:44,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 00:45:44,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:45:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:46:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:46:22,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 196 states and 693 transitions. [2021-11-23 00:46:22,542 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 693 transitions. [2021-11-23 00:46:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:46:22,543 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:46:22,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:46:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:46:22,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:46:22,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:46:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:47:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 201 states and 721 transitions. [2021-11-23 00:47:02,365 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 721 transitions. [2021-11-23 00:47:02,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:47:02,367 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:02,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:47:02,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 00:47:02,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:47:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:47:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 203 states and 727 transitions. [2021-11-23 00:47:17,256 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 727 transitions. [2021-11-23 00:47:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:47:17,257 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:17,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:47:17,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:47:17,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:47:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:47:46,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 207 states and 816 transitions. [2021-11-23 00:47:46,438 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 816 transitions. [2021-11-23 00:47:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:47:46,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:46,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:47:46,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 00:47:46,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:47:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:48:04,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:48:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 209 states and 822 transitions. [2021-11-23 00:48:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 822 transitions. [2021-11-23 00:48:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:48:04,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:48:04,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:04,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:48:04,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:48:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:48:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:48:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 212 states and 828 transitions. [2021-11-23 00:48:48,926 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 828 transitions. [2021-11-23 00:48:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:48:48,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:48:48,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:48,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 00:48:48,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:48:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 00:49:21,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:49:21,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 214 states and 832 transitions. [2021-11-23 00:49:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 832 transitions. [2021-11-23 00:49:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 00:49:21,873 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:49:21,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:49:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:49:21,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:49:21,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:49:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 00:50:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:50:08,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 217 states and 846 transitions. [2021-11-23 00:50:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 846 transitions. [2021-11-23 00:50:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 00:50:08,401 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:50:08,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:50:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:50:08,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 00:50:08,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:50:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.