./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/egcd-ll.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_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/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_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/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_2f30ee98-9005-45f7-b742-0cfdb3539a35/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 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:12:07,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:12:07,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:12:07,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:12:07,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:12:07,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:12:07,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:12:07,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:12:07,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:12:07,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:12:07,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:12:07,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:12:07,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:12:07,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:12:07,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:12:07,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:12:07,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:12:07,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:12:07,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:12:07,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:12:07,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:12:07,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:12:07,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:12:07,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:12:07,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:12:07,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:12:07,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:12:07,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:12:07,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:12:07,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:12:07,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:12:07,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:12:07,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:12:07,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:12:07,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:12:07,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:12:07,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:12:07,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:12:07,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:12:07,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:12:07,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:12:07,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:12:07,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:12:07,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:12:07,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:12:07,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:12:07,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:12:07,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:12:07,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:12:07,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:12:07,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:12:07,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:12:07,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:12:07,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:12:07,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:12:07,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:12:07,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:12:07,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:12:07,862 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:12:07,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:12:07,863 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:12:07,863 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:12:07,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:12:07,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:12:07,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:12:07,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:12:07,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:12:07,864 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:12:07,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:12:07,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:12:07,865 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_2f30ee98-9005-45f7-b742-0cfdb3539a35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 [2021-11-22 23:12:08,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:12:08,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:12:08,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:12:08,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:12:08,153 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:12:08,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench/egcd-ll.c [2021-11-22 23:12:08,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/data/398363438/b1d6c00c7fe94cebb9cbf55df34981d3/FLAG3d073213d [2021-11-22 23:12:08,726 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:12:08,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/sv-benchmarks/c/nla-digbench/egcd-ll.c [2021-11-22 23:12:08,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/data/398363438/b1d6c00c7fe94cebb9cbf55df34981d3/FLAG3d073213d [2021-11-22 23:12:09,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/data/398363438/b1d6c00c7fe94cebb9cbf55df34981d3 [2021-11-22 23:12:09,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:12:09,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:12:09,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:12:09,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:12:09,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:12:09,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a928f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09, skipping insertion in model container [2021-11-22 23:12:09,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:12:09,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:12:09,270 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_2f30ee98-9005-45f7-b742-0cfdb3539a35/sv-benchmarks/c/nla-digbench/egcd-ll.c[489,502] [2021-11-22 23:12:09,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:12:09,314 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:12:09,326 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_2f30ee98-9005-45f7-b742-0cfdb3539a35/sv-benchmarks/c/nla-digbench/egcd-ll.c[489,502] [2021-11-22 23:12:09,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:12:09,346 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:12:09,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09 WrapperNode [2021-11-22 23:12:09,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:12:09,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:12:09,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:12:09,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:12:09,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,386 INFO L137 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-22 23:12:09,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:12:09,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:12:09,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:12:09,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:12:09,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:12:09,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:12:09,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:12:09,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:12:09,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:12:09,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:12:09,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:12:09,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f30ee98-9005-45f7-b742-0cfdb3539a35/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:12:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:12:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-22 23:12:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-22 23:12:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:12:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:12:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:12:09,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:12:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:12:09,583 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:12:09,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:12:09,694 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:12:09,722 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:12:09,722 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:12:09,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:12:09 BoogieIcfgContainer [2021-11-22 23:12:09,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:12:09,726 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:12:09,726 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:12:09,734 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:12:09,734 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:12:09" (1/1) ... [2021-11-22 23:12:09,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:12:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2021-11-22 23:12:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2021-11-22 23:12:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:12:09,806 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:09,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:12:09,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2021-11-22 23:12:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2021-11-22 23:12:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:12:09,989 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:09,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:10,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:12:10,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:12:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 27 states and 43 transitions. [2021-11-22 23:12:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2021-11-22 23:12:10,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 23:12:10,367 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:10,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:10,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:12:10,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:12:10,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:10,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 50 transitions. [2021-11-22 23:12:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2021-11-22 23:12:10,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:12:10,924 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:10,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:10,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:12:10,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:11,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:12:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 34 states and 59 transitions. [2021-11-22 23:12:11,693 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 59 transitions. [2021-11-22 23:12:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 23:12:11,695 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:11,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:11,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:12:11,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-22 23:12:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 34 states and 58 transitions. [2021-11-22 23:12:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2021-11-22 23:12:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:12:11,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:11,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:11,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 23:12:11,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-22 23:12:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 38 states and 70 transitions. [2021-11-22 23:12:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2021-11-22 23:12:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 23:12:12,645 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:12,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:12,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:12:12,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:12:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:13,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 42 states and 80 transitions. [2021-11-22 23:12:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 80 transitions. [2021-11-22 23:12:13,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:12:13,528 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:13,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:13,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:12:13,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:14,082 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-22 23:12:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:12:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:17,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 50 states and 103 transitions. [2021-11-22 23:12:17,413 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 103 transitions. [2021-11-22 23:12:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:12:17,414 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:17,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:17,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:12:17,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-22 23:12:19,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:19,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 52 states and 108 transitions. [2021-11-22 23:12:19,175 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 108 transitions. [2021-11-22 23:12:19,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:12:19,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:19,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:19,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:12:19,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-22 23:12:22,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:22,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 57 states and 126 transitions. [2021-11-22 23:12:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 126 transitions. [2021-11-22 23:12:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 23:12:22,349 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:22,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:22,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:12:22,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-22 23:12:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:25,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 61 states and 141 transitions. [2021-11-22 23:12:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 141 transitions. [2021-11-22 23:12:25,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 23:12:25,449 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:25,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:25,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:12:25,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-22 23:12:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:27,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 64 states and 146 transitions. [2021-11-22 23:12:27,026 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 146 transitions. [2021-11-22 23:12:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-22 23:12:27,027 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:27,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:27,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:12:27,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-22 23:13:02,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:02,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 68 states and 156 transitions. [2021-11-22 23:13:02,773 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 156 transitions. [2021-11-22 23:13:02,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:13:02,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:02,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:02,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:13:02,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-22 23:13:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 75 states and 180 transitions. [2021-11-22 23:13:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 180 transitions. [2021-11-22 23:13:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:13:08,482 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:08,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:08,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:13:08,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-22 23:13:09,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 76 states and 182 transitions. [2021-11-22 23:13:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 182 transitions. [2021-11-22 23:13:09,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-22 23:13:09,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:09,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:09,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:13:09,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-22 23:13:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 78 states and 189 transitions. [2021-11-22 23:13:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 189 transitions. [2021-11-22 23:13:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-22 23:13:11,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:11,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:11,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:13:11,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-22 23:13:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 79 states and 190 transitions. [2021-11-22 23:13:12,189 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 190 transitions. [2021-11-22 23:13:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 23:13:12,190 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:12,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:12,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:13:12,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:14,232 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-22 23:13:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 83 states and 207 transitions. [2021-11-22 23:13:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 207 transitions. [2021-11-22 23:13:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 23:13:20,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:20,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:20,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:13:20,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-22 23:13:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 89 states and 224 transitions. [2021-11-22 23:13:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 224 transitions. [2021-11-22 23:13:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 23:13:56,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:56,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:56,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:13:56,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-22 23:14:13,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 95 states and 238 transitions. [2021-11-22 23:14:13,121 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 238 transitions. [2021-11-22 23:14:13,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 23:14:13,122 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:13,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:13,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:14:13,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-22 23:14:17,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:17,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 96 states and 239 transitions. [2021-11-22 23:14:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 239 transitions. [2021-11-22 23:14:17,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 23:14:17,559 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:17,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:17,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:14:17,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-22 23:14:21,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:21,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 97 states and 242 transitions. [2021-11-22 23:14:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 242 transitions. [2021-11-22 23:14:21,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-22 23:14:21,828 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:21,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:21,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:14:21,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-22 23:14:31,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:31,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 102 states and 264 transitions. [2021-11-22 23:14:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 264 transitions. [2021-11-22 23:14:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-22 23:14:31,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:31,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:31,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:14:31,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-22 23:14:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:34,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 103 states and 266 transitions. [2021-11-22 23:14:34,742 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 266 transitions. [2021-11-22 23:14:34,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-22 23:14:34,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:34,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:34,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:14:34,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-22 23:14:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 104 states and 268 transitions. [2021-11-22 23:14:38,609 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 268 transitions. [2021-11-22 23:14:38,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-22 23:14:38,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:38,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:38,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:14:38,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-22 23:14:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:44,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 106 states and 276 transitions. [2021-11-22 23:14:44,739 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 276 transitions. [2021-11-22 23:14:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-22 23:14:44,740 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:44,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:44,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:14:44,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-22 23:14:45,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 107 states and 277 transitions. [2021-11-22 23:14:45,581 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 277 transitions. [2021-11-22 23:14:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-22 23:14:45,582 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:45,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:45,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:14:45,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-22 23:14:47,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:47,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 108 states and 278 transitions. [2021-11-22 23:14:47,311 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 278 transitions. [2021-11-22 23:14:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:14:47,312 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:47,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:47,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:14:47,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-11-22 23:15:38,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:38,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 112 states and 298 transitions. [2021-11-22 23:15:38,118 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 298 transitions. [2021-11-22 23:15:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:15:38,118 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:38,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:38,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:15:38,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:15:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-11-22 23:15:54,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 113 states and 299 transitions. [2021-11-22 23:15:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 299 transitions. [2021-11-22 23:15:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:15:54,912 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:54,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:55,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:15:55,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-22 23:16:31,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:31,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 117 states and 313 transitions. [2021-11-22 23:16:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 313 transitions. [2021-11-22 23:16:31,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:16:31,746 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:31,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:31,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:16:31,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-22 23:16:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 120 states and 322 transitions. [2021-11-22 23:16:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 322 transitions. [2021-11-22 23:16:56,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:16:56,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:56,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:56,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:16:56,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:17:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-22 23:17:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:17:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 121 states and 325 transitions. [2021-11-22 23:17:06,974 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 325 transitions. [2021-11-22 23:17:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:17:06,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:17:06,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:17:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:17:07,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:17:07,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:17:23,238 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-22 23:17:28,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:17:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 122 states and 327 transitions. [2021-11-22 23:17:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 327 transitions. [2021-11-22 23:17:28,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:17:28,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:17:28,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:17:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:17:28,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:17:28,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:17:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-22 23:17:39,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:17:39,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 123 states and 328 transitions. [2021-11-22 23:17:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 328 transitions. [2021-11-22 23:17:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:17:39,962 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:17:39,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:17:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:17:40,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:17:40,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:17:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-11-22 23:18:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 128 states and 354 transitions. [2021-11-22 23:18:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 354 transitions. [2021-11-22 23:18:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:18:03,772 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:03,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:03,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:18:03,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-11-22 23:18:11,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:11,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 129 states and 355 transitions. [2021-11-22 23:18:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 355 transitions. [2021-11-22 23:18:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:18:11,675 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:11,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:11,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:18:11,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-11-22 23:18:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:20,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 130 states and 356 transitions. [2021-11-22 23:18:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 356 transitions. [2021-11-22 23:18:20,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:18:20,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:20,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:20,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:18:20,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-11-22 23:18:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 131 states and 358 transitions. [2021-11-22 23:18:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 358 transitions. [2021-11-22 23:18:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:18:28,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:28,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:28,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:18:28,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-11-22 23:18:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 132 states and 361 transitions. [2021-11-22 23:18:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 361 transitions. [2021-11-22 23:18:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:18:39,257 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:39,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:39,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:18:39,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:46,089 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-11-22 23:18:50,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 133 states and 363 transitions. [2021-11-22 23:18:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 363 transitions. [2021-11-22 23:18:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 23:18:50,557 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:50,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:50,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:18:50,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-22 23:19:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 135 states and 372 transitions. [2021-11-22 23:19:03,726 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 372 transitions. [2021-11-22 23:19:03,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 23:19:03,727 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:03,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:03,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:19:03,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-22 23:19:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 136 states and 373 transitions. [2021-11-22 23:19:05,373 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 373 transitions. [2021-11-22 23:19:05,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 23:19:05,374 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:05,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:05,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:19:05,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-22 23:19:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:09,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 137 states and 374 transitions. [2021-11-22 23:19:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 374 transitions. [2021-11-22 23:19:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 23:19:09,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:09,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:09,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:19:09,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:09,328 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-22 23:19:12,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:12,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 138 states and 375 transitions. [2021-11-22 23:19:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 375 transitions. [2021-11-22 23:19:12,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:19:12,915 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:12,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:13,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-22 23:19:13,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 55 proven. 80 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-22 23:21:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:18,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 142 states and 400 transitions. [2021-11-22 23:21:18,632 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 400 transitions. [2021-11-22 23:21:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:21:18,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:18,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:18,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-22 23:21:18,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 72 proven. 62 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-11-22 23:22:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:22:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 143 states and 400 transitions. [2021-11-22 23:22:34,924 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 400 transitions. [2021-11-22 23:22:34,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:22:34,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:22:34,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:22:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:22:35,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-22 23:22:35,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 55 proven. 49 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2021-11-22 23:23:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:19,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 144 states and 401 transitions. [2021-11-22 23:23:19,596 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 401 transitions. [2021-11-22 23:23:19,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:23:19,597 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:19,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:19,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-22 23:23:19,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-22 23:25:05,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:05,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 148 states and 416 transitions. [2021-11-22 23:25:05,643 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 416 transitions. [2021-11-22 23:25:05,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:25:05,644 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:05,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:05,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-22 23:25:05,820 INFO L286 TraceCheckSpWp]: Computing forward predicates...