./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.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_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/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_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/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_eab5b6c2-aed2-4235-b104-cb051b5917fa/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 40704d62e6828e524eeb24a4dc1771a4d2719fc47e6facdd014c5940cef1d5d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:00:42,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:00:42,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:00:42,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:00:42,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:00:42,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:00:42,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:00:42,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:00:42,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:00:42,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:00:42,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:00:42,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:00:42,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:00:42,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:00:42,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:00:42,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:00:42,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:00:42,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:00:42,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:00:42,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:00:42,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:00:42,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:00:42,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:00:42,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:00:42,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:00:42,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:00:42,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:00:42,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:00:42,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:00:42,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:00:42,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:00:42,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:00:42,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:00:42,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:00:42,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:00:42,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:00:42,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:00:42,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:00:42,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:00:42,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:00:42,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:00:42,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:00:42,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:00:42,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:00:42,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:00:42,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:00:42,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:00:42,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:00:42,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:00:42,943 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:00:42,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:00:42,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:00:42,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:00:42,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:00:42,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:00:42,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:00:42,952 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:00:42,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:00:42,952 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:00:42,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:00:42,953 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:00:42,953 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:00:42,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:00:42,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:00:42,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:00:42,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:00:42,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:00:42,955 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:00:42,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:00:42,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:00:42,955 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_eab5b6c2-aed2-4235-b104-cb051b5917fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40704d62e6828e524eeb24a4dc1771a4d2719fc47e6facdd014c5940cef1d5d0 [2021-11-23 01:00:43,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:00:43,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:00:43,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:00:43,282 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:00:43,283 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:00:43,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2021-11-23 01:00:43,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/data/dbaf44f53/0bc540c673c0438488592cf0a90a7f26/FLAGd66b46b36 [2021-11-23 01:00:43,787 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:00:43,788 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2021-11-23 01:00:43,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/data/dbaf44f53/0bc540c673c0438488592cf0a90a7f26/FLAGd66b46b36 [2021-11-23 01:00:44,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/data/dbaf44f53/0bc540c673c0438488592cf0a90a7f26 [2021-11-23 01:00:44,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:00:44,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:00:44,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:00:44,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:00:44,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:00:44,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46013c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44, skipping insertion in model container [2021-11-23 01:00:44,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:00:44,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:00:44,374 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_eab5b6c2-aed2-4235-b104-cb051b5917fa/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2021-11-23 01:00:44,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:00:44,398 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:00:44,411 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_eab5b6c2-aed2-4235-b104-cb051b5917fa/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2021-11-23 01:00:44,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:00:44,430 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:00:44,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44 WrapperNode [2021-11-23 01:00:44,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:00:44,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:00:44,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:00:44,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:00:44,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,463 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2021-11-23 01:00:44,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:00:44,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:00:44,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:00:44,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:00:44,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:00:44,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:00:44,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:00:44,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:00:44,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:00:44,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:00:44,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:00:44,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab5b6c2-aed2-4235-b104-cb051b5917fa/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:00:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:00:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:00:44,565 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:00:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:00:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:00:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:00:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:00:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:00:44,625 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:00:44,626 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:00:44,741 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:00:44,782 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:00:44,782 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:00:44,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:00:44 BoogieIcfgContainer [2021-11-23 01:00:44,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:00:44,795 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:00:44,795 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:00:44,806 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:00:44,806 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:00:44" (1/1) ... [2021-11-23 01:00:44,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:00:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2021-11-23 01:00:44,893 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-11-23 01:00:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:00:44,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:44,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:45,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:00:45,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:45,345 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:00:47,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:00:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2021-11-23 01:00:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2021-11-23 01:00:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:00:47,899 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:47,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:47,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:00:47,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:00:51,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:00:51,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2021-11-23 01:00:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2021-11-23 01:00:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:00:51,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:51,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:51,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:00:51,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:01:04,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 50 transitions. [2021-11-23 01:01:04,888 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2021-11-23 01:01:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:01:04,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:04,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:04,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:01:04,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:01:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 37 states and 77 transitions. [2021-11-23 01:01:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 77 transitions. [2021-11-23 01:01:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:01:33,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:33,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:33,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:01:33,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:37,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:01:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 40 states and 94 transitions. [2021-11-23 01:01:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 94 transitions. [2021-11-23 01:01:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:01:41,223 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:41,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:41,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:01:41,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:48,522 WARN L227 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:01:55,112 WARN L227 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:02:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:07,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 41 states and 102 transitions. [2021-11-23 01:02:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 102 transitions. [2021-11-23 01:02:07,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:07,092 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:07,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:07,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:02:07,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:07,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:07,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 42 states and 110 transitions. [2021-11-23 01:02:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 110 transitions. [2021-11-23 01:02:07,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:07,450 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:07,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:07,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:07,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:10,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 43 states and 118 transitions. [2021-11-23 01:02:10,162 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 118 transitions. [2021-11-23 01:02:10,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:10,164 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:10,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:10,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:10,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:12,569 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:12,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 44 states and 126 transitions. [2021-11-23 01:02:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 126 transitions. [2021-11-23 01:02:12,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:12,593 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:12,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:12,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:12,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 45 states and 134 transitions. [2021-11-23 01:02:17,293 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 134 transitions. [2021-11-23 01:02:17,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:17,297 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:17,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:17,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:17,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 46 states and 142 transitions. [2021-11-23 01:02:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 142 transitions. [2021-11-23 01:02:19,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:19,206 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:19,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:19,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:02:19,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:02:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:19,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 47 states and 150 transitions. [2021-11-23 01:02:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 150 transitions. [2021-11-23 01:02:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:19,950 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:19,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:19,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:19,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 48 states and 158 transitions. [2021-11-23 01:02:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 158 transitions. [2021-11-23 01:02:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:23,211 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:23,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:23,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:23,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 49 states and 166 transitions. [2021-11-23 01:02:42,756 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 166 transitions. [2021-11-23 01:02:42,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:42,760 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:42,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:42,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:02:42,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:02:43,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 50 states and 174 transitions. [2021-11-23 01:02:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 174 transitions. [2021-11-23 01:02:43,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:43,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:43,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:43,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:43,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:53,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 51 states and 182 transitions. [2021-11-23 01:02:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 182 transitions. [2021-11-23 01:02:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:02:53,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:53,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:53,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:02:53,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 52 states and 190 transitions. [2021-11-23 01:03:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 190 transitions. [2021-11-23 01:03:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:10,434 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:10,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:10,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:03:10,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 53 states and 198 transitions. [2021-11-23 01:03:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 198 transitions. [2021-11-23 01:03:10,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:10,585 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:10,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:10,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:10,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 54 states and 206 transitions. [2021-11-23 01:03:21,591 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 206 transitions. [2021-11-23 01:03:21,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:21,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:21,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:21,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:21,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:25,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 55 states and 214 transitions. [2021-11-23 01:03:25,377 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 214 transitions. [2021-11-23 01:03:25,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:25,378 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:25,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:25,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:25,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 56 states and 222 transitions. [2021-11-23 01:03:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 222 transitions. [2021-11-23 01:03:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:41,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:41,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:41,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:41,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:41,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 57 states and 230 transitions. [2021-11-23 01:03:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 230 transitions. [2021-11-23 01:03:41,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:41,986 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:41,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:42,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:03:42,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:03:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:42,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 58 states and 238 transitions. [2021-11-23 01:03:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 238 transitions. [2021-11-23 01:03:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:42,421 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:42,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:42,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:42,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:44,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 59 states and 246 transitions. [2021-11-23 01:03:44,291 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 246 transitions. [2021-11-23 01:03:44,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:44,292 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:44,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:44,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:44,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:44,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 60 states and 254 transitions. [2021-11-23 01:03:44,578 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 254 transitions. [2021-11-23 01:03:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:44,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:44,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:44,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:44,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:44,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:44,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 61 states and 262 transitions. [2021-11-23 01:03:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 262 transitions. [2021-11-23 01:03:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:44,910 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:44,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:44,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:44,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:48,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 62 states and 270 transitions. [2021-11-23 01:03:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 270 transitions. [2021-11-23 01:03:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:48,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:48,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:48,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:48,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 63 states and 278 transitions. [2021-11-23 01:03:53,877 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 278 transitions. [2021-11-23 01:03:53,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:53,878 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:53,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:53,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:53,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:03:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:54,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 64 states and 286 transitions. [2021-11-23 01:03:54,212 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 286 transitions. [2021-11-23 01:03:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:54,213 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:54,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:54,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:03:54,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 65 states and 294 transitions. [2021-11-23 01:04:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 294 transitions. [2021-11-23 01:04:06,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:06,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:06,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:06,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:06,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:13,730 WARN L227 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 8 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:04:17,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 66 states and 302 transitions. [2021-11-23 01:04:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 302 transitions. [2021-11-23 01:04:17,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:17,517 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:17,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:17,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:17,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:23,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:23,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 67 states and 310 transitions. [2021-11-23 01:04:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 310 transitions. [2021-11-23 01:04:23,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:23,392 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:23,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:23,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:23,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:25,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 68 states and 318 transitions. [2021-11-23 01:04:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 318 transitions. [2021-11-23 01:04:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:25,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:25,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:25,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:25,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:32,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 69 states and 326 transitions. [2021-11-23 01:04:32,360 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 326 transitions. [2021-11-23 01:04:32,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:32,361 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:32,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:32,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:32,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 70 states and 334 transitions. [2021-11-23 01:04:39,527 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 334 transitions. [2021-11-23 01:04:39,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:39,528 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:39,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:39,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:39,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:41,062 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:41,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 71 states and 342 transitions. [2021-11-23 01:04:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 342 transitions. [2021-11-23 01:04:41,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:41,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:41,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:41,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:41,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 72 states and 350 transitions. [2021-11-23 01:04:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 350 transitions. [2021-11-23 01:04:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:46,980 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:46,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:47,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:04:47,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:04:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 73 states and 324 transitions. [2021-11-23 01:04:47,683 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 324 transitions. [2021-11-23 01:04:47,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:47,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:47,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:47,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:47,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:04:54,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:54,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 74 states and 331 transitions. [2021-11-23 01:04:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 331 transitions. [2021-11-23 01:04:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:04:54,631 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:54,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:54,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:04:54,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:01,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 75 states and 338 transitions. [2021-11-23 01:05:01,487 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 338 transitions. [2021-11-23 01:05:01,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:01,487 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:01,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:01,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:01,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:06,311 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 76 states and 345 transitions. [2021-11-23 01:05:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 345 transitions. [2021-11-23 01:05:06,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:06,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:06,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:06,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:06,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:09,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 77 states and 352 transitions. [2021-11-23 01:05:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 352 transitions. [2021-11-23 01:05:09,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:09,764 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:09,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:09,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:09,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 78 states and 359 transitions. [2021-11-23 01:05:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 359 transitions. [2021-11-23 01:05:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:15,660 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:15,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:15,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:15,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:25,493 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:25,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 79 states and 366 transitions. [2021-11-23 01:05:25,722 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 366 transitions. [2021-11-23 01:05:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:25,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:25,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:25,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:25,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:37,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 80 states and 373 transitions. [2021-11-23 01:05:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 373 transitions. [2021-11-23 01:05:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:37,569 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:37,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:37,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:37,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 81 states and 380 transitions. [2021-11-23 01:05:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 380 transitions. [2021-11-23 01:05:38,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:38,765 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:38,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:38,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:38,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 82 states and 387 transitions. [2021-11-23 01:05:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 387 transitions. [2021-11-23 01:05:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:39,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:39,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:39,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:39,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:41,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 83 states and 394 transitions. [2021-11-23 01:05:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 394 transitions. [2021-11-23 01:05:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:41,771 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:41,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:41,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:05:41,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:05:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 84 states and 401 transitions. [2021-11-23 01:05:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 401 transitions. [2021-11-23 01:05:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:42,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:42,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:42,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:42,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:45,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 85 states and 408 transitions. [2021-11-23 01:05:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 408 transitions. [2021-11-23 01:05:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:45,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:45,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:45,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:45,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:50,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 86 states and 415 transitions. [2021-11-23 01:05:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 415 transitions. [2021-11-23 01:05:50,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:50,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:50,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:50,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:50,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 87 states and 422 transitions. [2021-11-23 01:05:50,831 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 422 transitions. [2021-11-23 01:05:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:50,832 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:50,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:50,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:05:50,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:51,191 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:05:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 88 states and 429 transitions. [2021-11-23 01:05:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 429 transitions. [2021-11-23 01:05:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:51,215 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:51,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:51,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:51,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:05:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:05:54,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:54,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 89 states and 436 transitions. [2021-11-23 01:05:54,993 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 436 transitions. [2021-11-23 01:05:54,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:05:54,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:54,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:55,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:05:55,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:06:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 90 states and 443 transitions. [2021-11-23 01:06:02,377 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 443 transitions. [2021-11-23 01:06:02,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:02,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:02,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:02,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:06:02,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:06:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 91 states and 450 transitions. [2021-11-23 01:06:11,225 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 450 transitions. [2021-11-23 01:06:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:11,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:11,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:11,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:06:11,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:06:11,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 92 states and 457 transitions. [2021-11-23 01:06:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 457 transitions. [2021-11-23 01:06:11,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:11,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:11,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:11,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:06:11,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:18,287 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:06:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:18,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 93 states and 464 transitions. [2021-11-23 01:06:18,572 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 464 transitions. [2021-11-23 01:06:18,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:18,572 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:18,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:18,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:06:18,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:06:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 94 states and 471 transitions. [2021-11-23 01:06:20,171 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 471 transitions. [2021-11-23 01:06:20,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:20,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:20,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:20,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:06:20,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:06:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:41,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 95 states and 478 transitions. [2021-11-23 01:06:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 478 transitions. [2021-11-23 01:06:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:41,622 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:41,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:41,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:06:41,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:06:42,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:42,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 96 states and 485 transitions. [2021-11-23 01:06:42,066 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 485 transitions. [2021-11-23 01:06:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:42,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:42,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:42,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:06:42,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:06:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 97 states and 492 transitions. [2021-11-23 01:06:43,835 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 492 transitions. [2021-11-23 01:06:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:43,836 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:43,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:43,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:06:43,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:56,137 WARN L227 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 16 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:06:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:06:59,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 98 states and 499 transitions. [2021-11-23 01:06:59,658 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 499 transitions. [2021-11-23 01:06:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:06:59,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:59,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:59,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:06:59,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:59,999 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 99 states and 506 transitions. [2021-11-23 01:07:00,018 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 506 transitions. [2021-11-23 01:07:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:00,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:00,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:00,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:07:00,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:03,873 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:04,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:04,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 100 states and 513 transitions. [2021-11-23 01:07:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 513 transitions. [2021-11-23 01:07:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:04,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:04,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:04,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:07:04,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:07:04,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 101 states and 520 transitions. [2021-11-23 01:07:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 520 transitions. [2021-11-23 01:07:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:04,421 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:04,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:04,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:07:04,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 102 states and 527 transitions. [2021-11-23 01:07:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 527 transitions. [2021-11-23 01:07:05,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:05,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:05,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:05,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:07:05,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 103 states and 534 transitions. [2021-11-23 01:07:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 534 transitions. [2021-11-23 01:07:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:14,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:14,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:14,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:07:14,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:07:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 104 states and 541 transitions. [2021-11-23 01:07:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 541 transitions. [2021-11-23 01:07:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:15,095 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:15,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:15,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:07:15,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:27,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 105 states and 548 transitions. [2021-11-23 01:07:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 548 transitions. [2021-11-23 01:07:27,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:27,047 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:27,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:27,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:07:27,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:07:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 106 states and 555 transitions. [2021-11-23 01:07:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 555 transitions. [2021-11-23 01:07:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:27,526 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:27,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:27,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:07:27,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 107 states and 562 transitions. [2021-11-23 01:07:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 562 transitions. [2021-11-23 01:07:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:28,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:28,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:28,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:07:28,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:07:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 108 states and 569 transitions. [2021-11-23 01:07:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 569 transitions. [2021-11-23 01:07:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:28,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:28,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:28,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:07:28,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:30,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:30,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 109 states and 576 transitions. [2021-11-23 01:07:30,933 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 576 transitions. [2021-11-23 01:07:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:30,934 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:30,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:30,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:07:30,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:07:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 110 states and 583 transitions. [2021-11-23 01:07:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 583 transitions. [2021-11-23 01:07:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:07:41,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:41,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:41,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:07:41,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:55,135 WARN L227 SmtUtils]: Spent 11.80s on a formula simplification. DAG size of input: 8 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:08:06,806 WARN L227 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 20 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:08:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:08:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 111 states and 590 transitions. [2021-11-23 01:08:07,217 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 590 transitions. [2021-11-23 01:08:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:08:07,218 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:07,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:07,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:08:07,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:08:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:14,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 112 states and 597 transitions. [2021-11-23 01:08:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 597 transitions. [2021-11-23 01:08:14,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:08:14,472 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:14,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:14,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:08:14,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:17,194 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:08:17,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 113 states and 604 transitions. [2021-11-23 01:08:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 604 transitions. [2021-11-23 01:08:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:08:17,466 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:17,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:17,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:08:17,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:19,881 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:08:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 114 states and 611 transitions. [2021-11-23 01:08:20,171 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 611 transitions. [2021-11-23 01:08:20,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:08:20,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:20,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:20,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:08:20,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:08:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 115 states and 618 transitions. [2021-11-23 01:08:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 618 transitions. [2021-11-23 01:08:22,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:08:22,309 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:22,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:22,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:08:22,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:08:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:28,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 116 states and 625 transitions. [2021-11-23 01:08:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 625 transitions. [2021-11-23 01:08:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:08:28,628 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:28,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:28,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:08:28,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:08:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:39,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 117 states and 632 transitions. [2021-11-23 01:08:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 632 transitions. [2021-11-23 01:08:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:08:39,956 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:39,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:39,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:08:39,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:53,981 WARN L227 SmtUtils]: Spent 6.95s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:09:01,028 WARN L227 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 16 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:09:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:01,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:01,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 118 states and 639 transitions. [2021-11-23 01:09:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 639 transitions. [2021-11-23 01:09:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:01,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:01,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:01,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:09:01,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:09:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:02,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 119 states and 646 transitions. [2021-11-23 01:09:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 646 transitions. [2021-11-23 01:09:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:02,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:02,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:02,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:09:02,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 120 states and 653 transitions. [2021-11-23 01:09:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 653 transitions. [2021-11-23 01:09:02,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:02,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:02,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:02,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:02,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:22,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 121 states and 665 transitions. [2021-11-23 01:09:22,495 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 665 transitions. [2021-11-23 01:09:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:22,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:22,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:22,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:22,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 122 states and 672 transitions. [2021-11-23 01:09:23,027 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 672 transitions. [2021-11-23 01:09:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:23,028 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:23,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:23,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:09:23,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:09:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 123 states and 679 transitions. [2021-11-23 01:09:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 679 transitions. [2021-11-23 01:09:23,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:23,505 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:23,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:23,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:23,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:37,561 WARN L227 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:09:40,571 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:40,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 124 states and 686 transitions. [2021-11-23 01:09:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 686 transitions. [2021-11-23 01:09:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:40,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:40,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:40,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:40,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 125 states and 693 transitions. [2021-11-23 01:09:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 693 transitions. [2021-11-23 01:09:51,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:51,321 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:51,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:51,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:51,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:51,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:51,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 126 states and 700 transitions. [2021-11-23 01:09:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 700 transitions. [2021-11-23 01:09:51,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:51,779 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:51,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:51,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:51,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 127 states and 707 transitions. [2021-11-23 01:09:52,240 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 707 transitions. [2021-11-23 01:09:52,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:52,241 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:52,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:52,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:09:52,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:09:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 128 states and 714 transitions. [2021-11-23 01:09:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 714 transitions. [2021-11-23 01:09:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:52,742 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:52,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:52,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:09:52,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:52,964 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:53,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 129 states and 721 transitions. [2021-11-23 01:09:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 721 transitions. [2021-11-23 01:09:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:53,026 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:53,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:53,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:53,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:53,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 130 states and 728 transitions. [2021-11-23 01:09:53,548 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 728 transitions. [2021-11-23 01:09:53,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:53,548 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:53,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:53,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:53,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:54,935 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:09:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 131 states and 735 transitions. [2021-11-23 01:09:55,120 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 735 transitions. [2021-11-23 01:09:55,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:55,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:55,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:55,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:09:55,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:08,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 132 states and 742 transitions. [2021-11-23 01:10:08,764 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 742 transitions. [2021-11-23 01:10:08,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:08,764 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:08,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:08,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:10:08,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 133 states and 749 transitions. [2021-11-23 01:10:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 749 transitions. [2021-11-23 01:10:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:11,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:11,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:11,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:10:11,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 134 states and 756 transitions. [2021-11-23 01:10:28,361 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 756 transitions. [2021-11-23 01:10:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:28,362 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:28,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:28,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:10:28,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:30,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 135 states and 763 transitions. [2021-11-23 01:10:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 763 transitions. [2021-11-23 01:10:30,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:30,289 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:30,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:30,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:10:30,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:46,308 WARN L227 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:10:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:48,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 136 states and 770 transitions. [2021-11-23 01:10:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 770 transitions. [2021-11-23 01:10:48,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:48,311 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:48,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:48,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:10:48,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 137 states and 777 transitions. [2021-11-23 01:10:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 777 transitions. [2021-11-23 01:10:48,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:48,505 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:48,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:48,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:10:48,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:53,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 138 states and 784 transitions. [2021-11-23 01:10:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 784 transitions. [2021-11-23 01:10:53,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:53,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:53,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:53,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:10:53,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:10:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:58,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 141 states and 703 transitions. [2021-11-23 01:10:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 703 transitions. [2021-11-23 01:10:58,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:58,238 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:58,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:58,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:10:58,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:10,249 WARN L227 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:11:17,313 WARN L227 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:11:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 142 states and 709 transitions. [2021-11-23 01:11:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 709 transitions. [2021-11-23 01:11:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:22,081 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:22,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:22,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:11:22,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:22,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 143 states and 715 transitions. [2021-11-23 01:11:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 715 transitions. [2021-11-23 01:11:22,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:22,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:22,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:22,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:22,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:25,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 144 states and 721 transitions. [2021-11-23 01:11:25,721 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 721 transitions. [2021-11-23 01:11:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:25,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:25,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:25,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:25,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 145 states and 727 transitions. [2021-11-23 01:11:29,124 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 727 transitions. [2021-11-23 01:11:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:29,125 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:29,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:29,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:11:29,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:11:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:29,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 146 states and 733 transitions. [2021-11-23 01:11:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 733 transitions. [2021-11-23 01:11:29,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:29,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:29,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:29,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:29,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 147 states and 739 transitions. [2021-11-23 01:11:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 739 transitions. [2021-11-23 01:11:31,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:31,340 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:31,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:31,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:31,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:32,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 148 states and 745 transitions. [2021-11-23 01:11:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 745 transitions. [2021-11-23 01:11:32,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:32,526 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:32,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:32,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:32,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:41,173 WARN L227 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:11:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:46,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 149 states and 751 transitions. [2021-11-23 01:11:46,390 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 751 transitions. [2021-11-23 01:11:46,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:46,391 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:46,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:46,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:11:46,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:46,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:46,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 150 states and 757 transitions. [2021-11-23 01:11:46,722 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 757 transitions. [2021-11-23 01:11:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:46,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:46,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:46,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:46,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:53,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:53,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 151 states and 763 transitions. [2021-11-23 01:11:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 763 transitions. [2021-11-23 01:11:53,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:53,375 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:53,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:53,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:53,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:56,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:56,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 152 states and 769 transitions. [2021-11-23 01:11:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 769 transitions. [2021-11-23 01:11:56,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:56,935 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:56,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:56,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:11:56,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:11:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:57,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 153 states and 775 transitions. [2021-11-23 01:11:57,430 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 775 transitions. [2021-11-23 01:11:57,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:57,431 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:57,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:57,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:57,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:57,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 154 states and 781 transitions. [2021-11-23 01:11:57,972 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 781 transitions. [2021-11-23 01:11:57,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:57,973 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:57,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:58,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:58,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:11:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 155 states and 787 transitions. [2021-11-23 01:11:59,915 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 787 transitions. [2021-11-23 01:11:59,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:11:59,916 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:59,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:59,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:11:59,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:12:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:19,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 156 states and 793 transitions. [2021-11-23 01:12:19,441 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 793 transitions. [2021-11-23 01:12:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:19,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:19,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:19,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:19,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:27,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:12:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 157 states and 799 transitions. [2021-11-23 01:12:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 799 transitions. [2021-11-23 01:12:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:27,946 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:27,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:27,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:27,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:12:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 158 states and 805 transitions. [2021-11-23 01:12:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 805 transitions. [2021-11-23 01:12:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:43,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:43,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:43,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:12:43,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:12:44,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 159 states and 811 transitions. [2021-11-23 01:12:44,421 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 811 transitions. [2021-11-23 01:12:44,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:44,422 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:44,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:44,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:44,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:12:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 160 states and 817 transitions. [2021-11-23 01:12:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 817 transitions. [2021-11-23 01:12:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:44,896 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:44,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:44,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:44,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:12:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 161 states and 823 transitions. [2021-11-23 01:12:46,044 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 823 transitions. [2021-11-23 01:12:46,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:46,045 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:46,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:46,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:46,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:57,568 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:12:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 162 states and 829 transitions. [2021-11-23 01:12:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 829 transitions. [2021-11-23 01:12:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:57,772 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:57,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:57,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:12:57,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:12:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 163 states and 835 transitions. [2021-11-23 01:12:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 835 transitions. [2021-11-23 01:12:58,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:12:58,272 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:58,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:58,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:58,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:13:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:12,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 164 states and 841 transitions. [2021-11-23 01:13:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 841 transitions. [2021-11-23 01:13:12,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:12,374 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:12,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:12,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:13:12,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:13:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:16,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 165 states and 847 transitions. [2021-11-23 01:13:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 847 transitions. [2021-11-23 01:13:16,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:16,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:16,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:16,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:13:16,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:32,201 WARN L227 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:13:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:13:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 166 states and 853 transitions. [2021-11-23 01:13:32,857 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 853 transitions. [2021-11-23 01:13:32,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:32,858 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:32,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:32,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:13:32,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:13:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 167 states and 859 transitions. [2021-11-23 01:13:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 859 transitions. [2021-11-23 01:13:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:34,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:34,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:34,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:13:34,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 168 states and 865 transitions. [2021-11-23 01:13:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 865 transitions. [2021-11-23 01:13:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:35,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:35,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:35,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:13:35,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:35,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 169 states and 871 transitions. [2021-11-23 01:13:35,946 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 871 transitions. [2021-11-23 01:13:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:35,947 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:35,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:35,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:13:35,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:13:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 170 states and 877 transitions. [2021-11-23 01:13:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 877 transitions. [2021-11-23 01:13:39,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:39,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:39,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:39,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:13:39,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:13:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:39,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 171 states and 883 transitions. [2021-11-23 01:13:39,793 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 883 transitions. [2021-11-23 01:13:39,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:39,794 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:39,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:39,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:13:39,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:54,095 WARN L227 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:13:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:13:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:54,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 172 states and 889 transitions. [2021-11-23 01:13:54,638 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 889 transitions. [2021-11-23 01:13:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:13:54,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:54,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:54,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:13:54,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:14:08,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 173 states and 895 transitions. [2021-11-23 01:14:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 895 transitions. [2021-11-23 01:14:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:08,827 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:08,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:08,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:14:08,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:14:09,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:09,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 174 states and 901 transitions. [2021-11-23 01:14:09,352 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 901 transitions. [2021-11-23 01:14:09,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:09,352 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:09,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:09,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:14:09,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:14:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 175 states and 907 transitions. [2021-11-23 01:14:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 907 transitions. [2021-11-23 01:14:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:11,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:11,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:11,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:14:11,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:14:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 176 states and 913 transitions. [2021-11-23 01:14:11,824 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 913 transitions. [2021-11-23 01:14:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:11,824 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:11,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:11,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:14:11,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:14:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 177 states and 919 transitions. [2021-11-23 01:14:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 919 transitions. [2021-11-23 01:14:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:14,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:14,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:14,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:14:14,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:14:18,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 178 states and 925 transitions. [2021-11-23 01:14:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 925 transitions. [2021-11-23 01:14:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:18,759 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:18,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:18,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:14:18,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:14:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:29,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 179 states and 931 transitions. [2021-11-23 01:14:29,627 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 931 transitions. [2021-11-23 01:14:29,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:29,628 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:29,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:29,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:14:29,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:14:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 180 states and 937 transitions. [2021-11-23 01:14:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 937 transitions. [2021-11-23 01:14:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:14:42,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:42,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:42,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:14:42,384 INFO L286 TraceCheckSpWp]: Computing forward predicates...