./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.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_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/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_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/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_03340da2-c6eb-46a9-8ef2-e37b0f256368/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 1eba5bc7e50ef659abfe155713ae512eb1ae4032ecb78db63a02f9acbcdf9dbe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:19:55,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:19:55,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:19:55,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:19:55,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:19:55,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:19:55,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:19:55,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:19:55,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:19:55,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:19:55,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:19:55,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:19:55,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:19:55,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:19:55,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:19:55,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:19:55,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:19:55,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:19:55,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:19:55,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:19:55,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:19:55,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:19:55,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:19:55,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:19:55,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:19:55,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:19:55,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:19:55,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:19:55,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:19:55,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:19:55,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:19:55,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:19:55,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:19:55,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:19:55,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:19:55,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:19:55,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:19:55,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:19:55,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:19:55,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:19:55,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:19:55,638 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:19:55,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:19:55,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:19:55,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:19:55,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:19:55,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:19:55,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:19:55,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:19:55,684 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:19:55,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:19:55,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:19:55,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:19:55,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:19:55,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:19:55,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:19:55,693 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:19:55,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:19:55,694 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:19:55,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:19:55,694 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:19:55,694 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:19:55,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:19:55,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:19:55,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:19:55,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:19:55,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:19:55,696 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:19:55,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:19:55,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:19:55,696 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_03340da2-c6eb-46a9-8ef2-e37b0f256368/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1eba5bc7e50ef659abfe155713ae512eb1ae4032ecb78db63a02f9acbcdf9dbe [2021-11-22 23:19:55,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:19:56,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:19:56,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:19:56,008 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:19:56,010 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:19:56,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c [2021-11-22 23:19:56,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/data/bfce1a79f/f1fab3a783c942479825da814a2f101a/FLAGdb049a1f7 [2021-11-22 23:19:56,579 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:19:56,579 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c [2021-11-22 23:19:56,586 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/data/bfce1a79f/f1fab3a783c942479825da814a2f101a/FLAGdb049a1f7 [2021-11-22 23:19:56,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/data/bfce1a79f/f1fab3a783c942479825da814a2f101a [2021-11-22 23:19:56,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:19:56,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:19:56,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:19:56,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:19:56,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:19:56,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:19:56" (1/1) ... [2021-11-22 23:19:56,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55963997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:56, skipping insertion in model container [2021-11-22 23:19:56,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:19:56" (1/1) ... [2021-11-22 23:19:56,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:19:56,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:19:57,141 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_03340da2-c6eb-46a9-8ef2-e37b0f256368/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c[538,551] [2021-11-22 23:19:57,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:19:57,186 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:19:57,199 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_03340da2-c6eb-46a9-8ef2-e37b0f256368/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c[538,551] [2021-11-22 23:19:57,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:19:57,220 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:19:57,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57 WrapperNode [2021-11-22 23:19:57,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:19:57,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:19:57,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:19:57,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:19:57,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,257 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-11-22 23:19:57,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:19:57,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:19:57,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:19:57,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:19:57,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:19:57,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:19:57,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:19:57,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:19:57,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:19:57,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:19:57,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:19:57,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03340da2-c6eb-46a9-8ef2-e37b0f256368/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:19:57,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:19:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:19:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:19:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:19:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:19:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:19:57,438 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:19:57,439 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:19:57,559 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:19:57,628 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:19:57,628 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 23:19:57,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:19:57 BoogieIcfgContainer [2021-11-22 23:19:57,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:19:57,632 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:19:57,632 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:19:57,653 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:19:57,653 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:19:57" (1/1) ... [2021-11-22 23:19:57,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:19:57,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-22 23:19:57,770 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-22 23:19:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:19:57,772 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:57,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:57,971 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 23:19:58,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-22 23:19:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-22 23:19:58,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:19:58,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:58,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:58,107 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 23:19:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2021-11-22 23:19:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2021-11-22 23:19:58,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 23:19:58,206 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:58,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:58,271 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 23:19:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2021-11-22 23:19:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2021-11-22 23:19:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 23:19:58,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:58,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:19:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:58,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2021-11-22 23:19:58,985 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2021-11-22 23:19:58,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 23:19:58,986 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:58,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:59,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 23:19:59,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:20:00,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:00,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2021-11-22 23:20:00,344 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2021-11-22 23:20:00,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 23:20:00,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:00,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:00,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:20:00,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:20:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 48 states and 95 transitions. [2021-11-22 23:20:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2021-11-22 23:20:01,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 23:20:01,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:01,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:01,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:20:01,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:20:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:02,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 52 states and 107 transitions. [2021-11-22 23:20:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 107 transitions. [2021-11-22 23:20:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:20:02,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:02,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:02,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:20:02,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:20:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 54 states and 112 transitions. [2021-11-22 23:20:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 112 transitions. [2021-11-22 23:20:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:20:03,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:03,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:03,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:20:03,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:03,804 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:20:04,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 59 states and 127 transitions. [2021-11-22 23:20:04,865 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 127 transitions. [2021-11-22 23:20:04,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:20:04,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:04,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:04,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:20:04,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:20:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 61 states and 128 transitions. [2021-11-22 23:20:05,613 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 128 transitions. [2021-11-22 23:20:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:20:05,615 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:05,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:05,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-22 23:20:05,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:06,149 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:20:09,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:09,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 66 states and 144 transitions. [2021-11-22 23:20:09,271 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 144 transitions. [2021-11-22 23:20:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:20:09,277 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:09,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:09,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-22 23:20:09,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:20:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 68 states and 145 transitions. [2021-11-22 23:20:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 145 transitions. [2021-11-22 23:20:10,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-22 23:20:10,404 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:10,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:10,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:20:10,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:20:14,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:14,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 74 states and 170 transitions. [2021-11-22 23:20:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 170 transitions. [2021-11-22 23:20:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-22 23:20:14,945 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:14,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:14,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:20:14,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:20:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:19,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 79 states and 184 transitions. [2021-11-22 23:20:19,474 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 184 transitions. [2021-11-22 23:20:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-22 23:20:19,476 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:19,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:19,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:20:19,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:20:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 81 states and 191 transitions. [2021-11-22 23:20:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 191 transitions. [2021-11-22 23:20:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 23:20:21,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:21,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:21,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:20:21,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:20:27,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 84 states and 205 transitions. [2021-11-22 23:20:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 205 transitions. [2021-11-22 23:20:27,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 23:20:27,407 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:27,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:27,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:20:27,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:20:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 94 states and 275 transitions. [2021-11-22 23:20:32,165 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 275 transitions. [2021-11-22 23:20:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 23:20:32,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:32,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:32,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:20:32,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:20:35,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 97 states and 288 transitions. [2021-11-22 23:20:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 288 transitions. [2021-11-22 23:20:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 23:20:35,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:35,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:35,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:20:35,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:20:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:37,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 97 states and 287 transitions. [2021-11-22 23:20:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 287 transitions. [2021-11-22 23:20:37,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 23:20:37,539 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:37,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:37,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:20:37,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:20:38,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:38,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 97 states and 286 transitions. [2021-11-22 23:20:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 286 transitions. [2021-11-22 23:20:38,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 23:20:38,483 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:38,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:38,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:20:38,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:20:40,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 99 states and 294 transitions. [2021-11-22 23:20:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 294 transitions. [2021-11-22 23:20:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-22 23:20:40,190 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:40,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:40,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:20:40,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:40,302 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-22 23:20:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 102 states and 302 transitions. [2021-11-22 23:20:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 302 transitions. [2021-11-22 23:20:45,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-22 23:20:45,276 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:45,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:45,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:20:45,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-22 23:20:47,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 104 states and 304 transitions. [2021-11-22 23:20:47,523 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 304 transitions. [2021-11-22 23:20:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 23:20:47,524 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:47,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:47,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:20:47,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:20:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 110 states and 330 transitions. [2021-11-22 23:20:57,114 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 330 transitions. [2021-11-22 23:20:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 23:20:57,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:57,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:57,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:20:57,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:21:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 113 states and 335 transitions. [2021-11-22 23:21:02,691 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 335 transitions. [2021-11-22 23:21:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 23:21:02,693 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:02,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:02,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:21:02,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:02,978 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:21:06,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 115 states and 336 transitions. [2021-11-22 23:21:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 336 transitions. [2021-11-22 23:21:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-22 23:21:06,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:06,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:06,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:21:06,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:21:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:29,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 120 states and 365 transitions. [2021-11-22 23:21:29,726 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 365 transitions. [2021-11-22 23:21:29,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-22 23:21:29,728 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:29,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:29,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:21:29,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:29,873 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:21:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:41,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 122 states and 370 transitions. [2021-11-22 23:21:41,089 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 370 transitions. [2021-11-22 23:21:41,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:21:41,091 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:41,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:41,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:21:41,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:21:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 127 states and 391 transitions. [2021-11-22 23:21:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 391 transitions. [2021-11-22 23:21:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:21:59,316 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:59,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:59,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:21:59,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:22:41,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:22:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 135 states and 438 transitions. [2021-11-22 23:22:41,291 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 438 transitions. [2021-11-22 23:22:41,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:22:41,292 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:22:41,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:22:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:22:41,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:22:41,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:42,092 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:22:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:22:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 138 states and 456 transitions. [2021-11-22 23:22:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 456 transitions. [2021-11-22 23:22:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:22:58,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:22:58,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:22:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:22:58,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:22:58,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:23:23,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 143 states and 467 transitions. [2021-11-22 23:23:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 467 transitions. [2021-11-22 23:23:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:23:23,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:23,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:23,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:23:23,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:23:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 147 states and 536 transitions. [2021-11-22 23:23:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 536 transitions. [2021-11-22 23:23:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:23:36,786 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:36,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:36,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:23:36,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:23:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:43,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 149 states and 542 transitions. [2021-11-22 23:23:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 542 transitions. [2021-11-22 23:23:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:23:43,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:43,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:43,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:23:43,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:23:50,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:50,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 152 states and 544 transitions. [2021-11-22 23:23:50,739 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 544 transitions. [2021-11-22 23:23:50,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 23:23:50,741 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:50,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:50,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:23:50,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:24:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 154 states and 548 transitions. [2021-11-22 23:24:18,363 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 548 transitions. [2021-11-22 23:24:18,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:24:18,365 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:18,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:18,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:24:18,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:24:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 157 states and 564 transitions. [2021-11-22 23:24:43,422 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 564 transitions. [2021-11-22 23:24:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:24:43,424 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:43,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:43,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:24:43,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:24:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:52,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 159 states and 568 transitions. [2021-11-22 23:24:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 568 transitions. [2021-11-22 23:24:52,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:24:52,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:52,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:52,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 23:24:52,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:25:17,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 161 states and 572 transitions. [2021-11-22 23:25:17,101 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 572 transitions. [2021-11-22 23:25:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:25:17,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:17,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:17,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 23:25:17,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:25:47,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 164 states and 599 transitions. [2021-11-22 23:25:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 599 transitions. [2021-11-22 23:25:47,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:25:47,707 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:47,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:47,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 23:25:47,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:48,349 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:26:12,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:12,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 167 states and 617 transitions. [2021-11-22 23:26:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 617 transitions. [2021-11-22 23:26:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:26:12,448 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:12,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:12,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 23:26:12,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:26:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 167 states and 616 transitions. [2021-11-22 23:26:20,701 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 616 transitions. [2021-11-22 23:26:20,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:26:20,702 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:20,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:20,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:26:20,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:26:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 171 states and 620 transitions. [2021-11-22 23:26:34,369 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 620 transitions. [2021-11-22 23:26:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:26:34,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:34,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:34,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 23:26:34,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:26:56,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:56,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 174 states and 636 transitions. [2021-11-22 23:26:56,694 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 636 transitions. [2021-11-22 23:26:56,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:26:56,694 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:56,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:56,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:26:56,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:27:01,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 174 states and 635 transitions. [2021-11-22 23:27:01,438 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 635 transitions. [2021-11-22 23:27:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:27:01,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:01,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:01,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:27:01,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:27:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 174 states and 634 transitions. [2021-11-22 23:27:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 634 transitions. [2021-11-22 23:27:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 23:27:05,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:05,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:05,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:27:05,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:27:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 176 states and 646 transitions. [2021-11-22 23:27:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 646 transitions. [2021-11-22 23:27:20,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 23:27:20,506 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:20,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:20,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:20,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-22 23:27:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:57,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 177 states and 648 transitions. [2021-11-22 23:27:57,055 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 648 transitions. [2021-11-22 23:27:57,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 23:27:57,056 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:57,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:57,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:27:57,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-11-22 23:28:35,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 179 states and 654 transitions. [2021-11-22 23:28:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 654 transitions. [2021-11-22 23:28:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 23:28:35,719 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:35,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:35,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:28:35,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 25 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-22 23:28:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 181 states and 656 transitions. [2021-11-22 23:28:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 656 transitions. [2021-11-22 23:28:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 23:28:47,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:47,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:47,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:28:47,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-22 23:29:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 184 states and 686 transitions. [2021-11-22 23:29:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 686 transitions. [2021-11-22 23:29:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:29:42,047 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:42,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:42,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:29:42,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-22 23:30:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 189 states and 705 transitions. [2021-11-22 23:30:17,927 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 705 transitions. [2021-11-22 23:30:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:30:17,928 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:17,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:17,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:30:17,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-22 23:30:27,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 189 states and 701 transitions. [2021-11-22 23:30:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 701 transitions. [2021-11-22 23:30:27,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:30:27,012 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:27,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:27,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:30:27,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:27,213 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-22 23:30:43,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:43,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 193 states and 785 transitions. [2021-11-22 23:30:43,689 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 785 transitions. [2021-11-22 23:30:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:30:43,691 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:43,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:43,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:30:43,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:43,841 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-22 23:30:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 193 states and 784 transitions. [2021-11-22 23:30:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 784 transitions. [2021-11-22 23:30:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 23:30:49,170 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:49,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:49,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:30:49,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:51,576 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:31:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 199 states and 825 transitions. [2021-11-22 23:31:38,892 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 825 transitions. [2021-11-22 23:31:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 23:31:38,893 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:38,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:38,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:31:38,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:31:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 201 states and 826 transitions. [2021-11-22 23:31:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 826 transitions. [2021-11-22 23:31:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 23:31:56,803 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:56,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:56,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:31:56,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:57,147 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:32:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 204 states and 829 transitions. [2021-11-22 23:32:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 829 transitions. [2021-11-22 23:32:28,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 23:32:28,404 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:28,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:28,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:32:28,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:28,796 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:32:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 207 states and 832 transitions. [2021-11-22 23:32:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 832 transitions. [2021-11-22 23:32:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-22 23:32:57,414 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:57,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:57,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:32:57,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:33:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:33:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 208 states and 839 transitions. [2021-11-22 23:33:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 839 transitions. [2021-11-22 23:33:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-22 23:33:36,262 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:33:36,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:33:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:33:36,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 23:33:36,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:33:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.