./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/hard2.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_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/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_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/hard2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/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_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/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 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:06:42,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:06:42,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:06:42,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:06:42,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:06:42,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:06:42,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:06:42,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:06:42,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:06:42,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:06:42,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:06:42,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:06:42,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:06:42,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:06:42,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:06:42,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:06:42,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:06:42,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:06:42,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:06:42,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:06:42,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:06:42,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:06:42,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:06:42,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:06:42,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:06:42,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:06:42,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:06:42,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:06:42,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:06:42,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:06:42,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:06:42,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:06:42,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:06:42,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:06:42,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:06:42,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:06:42,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:06:42,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:06:42,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:06:42,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:06:42,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:06:42,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:06:42,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:06:42,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:06:42,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:06:42,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:06:42,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:06:42,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:06:42,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:06:42,885 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:06:42,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:06:42,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:06:42,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:06:42,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:06:42,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:06:42,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:06:42,886 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:06:42,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:06:42,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:06:42,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:06:42,887 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:06:42,887 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:06:42,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:06:42,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:42,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:06:42,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:06:42,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:06:42,888 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:06:42,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:06:42,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:06:42,889 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_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 [2021-11-22 23:06:43,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:06:43,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:06:43,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:06:43,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:06:43,185 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:06:43,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench/hard2.c [2021-11-22 23:06:43,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/data/3ebb8f199/876c16fd80bf4b06bec536f807f878ff/FLAG178feba98 [2021-11-22 23:06:43,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:06:43,678 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/sv-benchmarks/c/nla-digbench/hard2.c [2021-11-22 23:06:43,689 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/data/3ebb8f199/876c16fd80bf4b06bec536f807f878ff/FLAG178feba98 [2021-11-22 23:06:44,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/data/3ebb8f199/876c16fd80bf4b06bec536f807f878ff [2021-11-22 23:06:44,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:06:44,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:06:44,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:44,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:06:44,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:06:44,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4a5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44, skipping insertion in model container [2021-11-22 23:06:44,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:06:44,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:06:44,239 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_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/sv-benchmarks/c/nla-digbench/hard2.c[526,539] [2021-11-22 23:06:44,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:44,261 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:06:44,274 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_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/sv-benchmarks/c/nla-digbench/hard2.c[526,539] [2021-11-22 23:06:44,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:44,293 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:06:44,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44 WrapperNode [2021-11-22 23:06:44,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:44,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:44,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:06:44,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:06:44,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,341 INFO L137 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-11-22 23:06:44,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:44,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:06:44,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:06:44,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:06:44,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:06:44,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:06:44,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:06:44,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:06:44,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:44,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:06:44,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:06:44,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ea42f4-7bc4-413f-aa9c-74ea7c4d8b16/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:06:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:06:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:06:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:06:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:06:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:06:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:06:44,502 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:06:44,503 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:06:44,606 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:06:44,631 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:06:44,631 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 23:06:44,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:44 BoogieIcfgContainer [2021-11-22 23:06:44,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:06:44,635 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:06:44,635 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:06:44,646 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:06:44,646 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:44" (1/1) ... [2021-11-22 23:06:44,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:44,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-11-22 23:06:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-11-22 23:06:44,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:06:44,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:44,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 38 transitions. [2021-11-22 23:06:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2021-11-22 23:06:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 23:06:45,209 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:45,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:45,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 42 transitions. [2021-11-22 23:06:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2021-11-22 23:06:45,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 23:06:45,406 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:45,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:45,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:06:45,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:06:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:45,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 49 transitions. [2021-11-22 23:06:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2021-11-22 23:06:45,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:06:45,899 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:45,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:45,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 23:06:45,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:46,011 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:06:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 48 transitions. [2021-11-22 23:06:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2021-11-22 23:06:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:06:46,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:46,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:46,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:46,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:46,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:06:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 54 transitions. [2021-11-22 23:06:46,378 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2021-11-22 23:06:46,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 23:06:46,379 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:46,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:46,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:46,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:06:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 38 states and 62 transitions. [2021-11-22 23:06:46,816 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2021-11-22 23:06:46,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 23:06:46,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:46,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:46,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:06:46,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:06:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 43 states and 72 transitions. [2021-11-22 23:06:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 72 transitions. [2021-11-22 23:06:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 23:06:47,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:47,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:47,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:47,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:06:47,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 46 states and 80 transitions. [2021-11-22 23:06:47,957 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2021-11-22 23:06:47,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:06:47,958 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:47,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:47,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:06:47,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:06:48,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 50 states and 88 transitions. [2021-11-22 23:06:48,400 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 88 transitions. [2021-11-22 23:06:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 23:06:48,402 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:48,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:48,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:06:48,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:06:48,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:48,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 51 states and 89 transitions. [2021-11-22 23:06:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 89 transitions. [2021-11-22 23:06:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 23:06:48,774 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:48,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:48,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:48,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-22 23:06:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:49,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 51 states and 88 transitions. [2021-11-22 23:06:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 88 transitions. [2021-11-22 23:06:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 23:06:49,096 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:49,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:49,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-22 23:06:49,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:06:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:50,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 56 states and 98 transitions. [2021-11-22 23:06:50,141 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 98 transitions. [2021-11-22 23:06:50,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 23:06:50,143 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:50,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:50,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:06:50,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:06:51,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:51,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 62 states and 113 transitions. [2021-11-22 23:06:51,305 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 113 transitions. [2021-11-22 23:06:51,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 23:06:51,307 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:51,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:51,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-22 23:06:51,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:06:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 64 states and 118 transitions. [2021-11-22 23:06:51,772 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 118 transitions. [2021-11-22 23:06:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 23:06:51,773 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:51,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:51,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:06:51,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-22 23:06:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 64 states and 117 transitions. [2021-11-22 23:06:52,335 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 117 transitions. [2021-11-22 23:06:52,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 23:06:52,337 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:52,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:52,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:06:52,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-22 23:06:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 73 states and 134 transitions. [2021-11-22 23:06:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 134 transitions. [2021-11-22 23:06:54,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 23:06:54,171 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:54,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:54,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 23:06:54,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:06:55,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 78 states and 144 transitions. [2021-11-22 23:06:55,682 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 144 transitions. [2021-11-22 23:06:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-22 23:06:55,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:55,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:55,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:06:55,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:06:56,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:56,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 78 states and 143 transitions. [2021-11-22 23:06:56,454 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 143 transitions. [2021-11-22 23:06:56,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:06:56,455 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:56,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:56,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:06:56,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:06:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 84 states and 158 transitions. [2021-11-22 23:06:58,219 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 158 transitions. [2021-11-22 23:06:58,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:06:58,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:58,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:58,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:06:58,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:58,950 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-22 23:06:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 86 states and 163 transitions. [2021-11-22 23:06:59,413 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 163 transitions. [2021-11-22 23:06:59,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 23:06:59,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:59,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:59,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:06:59,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-22 23:07:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:00,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 86 states and 162 transitions. [2021-11-22 23:07:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 162 transitions. [2021-11-22 23:07:00,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-22 23:07:00,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:00,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:00,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:07:00,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 41 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-22 23:07:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 88 states and 172 transitions. [2021-11-22 23:07:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 172 transitions. [2021-11-22 23:07:01,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:07:01,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:01,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:02,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 23:07:02,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 26 proven. 23 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-22 23:07:03,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:03,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 92 states and 185 transitions. [2021-11-22 23:07:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 185 transitions. [2021-11-22 23:07:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-22 23:07:03,950 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:03,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:03,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:07:03,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 28 proven. 46 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-22 23:07:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:06,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 97 states and 196 transitions. [2021-11-22 23:07:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 196 transitions. [2021-11-22 23:07:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:07:06,430 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:06,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:06,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-22 23:07:06,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:07,034 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 28 proven. 25 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-22 23:07:07,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:07,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 99 states and 201 transitions. [2021-11-22 23:07:07,523 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 201 transitions. [2021-11-22 23:07:07,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:07:07,524 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:07,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:07,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:07:07,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 28 proven. 25 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-22 23:07:08,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:08,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 101 states and 206 transitions. [2021-11-22 23:07:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 206 transitions. [2021-11-22 23:07:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:07:08,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:08,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:08,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-22 23:07:08,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 28 proven. 32 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-22 23:07:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 108 states and 225 transitions. [2021-11-22 23:07:11,495 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 225 transitions. [2021-11-22 23:07:11,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:11,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:11,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:11,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:07:11,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:12,294 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-22 23:07:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 110 states and 230 transitions. [2021-11-22 23:07:13,041 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 230 transitions. [2021-11-22 23:07:13,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:13,043 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:13,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:13,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:07:13,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2021-11-22 23:07:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 110 states and 229 transitions. [2021-11-22 23:07:13,739 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 229 transitions. [2021-11-22 23:07:13,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-22 23:07:13,741 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:13,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:13,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 23:07:13,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:15,064 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-22 23:07:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 115 states and 239 transitions. [2021-11-22 23:07:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 239 transitions. [2021-11-22 23:07:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-22 23:07:17,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:17,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:17,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:07:17,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 32 proven. 27 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:07:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 115 states and 238 transitions. [2021-11-22 23:07:19,595 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 238 transitions. [2021-11-22 23:07:19,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 23:07:19,597 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:19,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:19,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-22 23:07:19,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 32 proven. 38 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:07:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 126 states and 267 transitions. [2021-11-22 23:07:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 267 transitions. [2021-11-22 23:07:23,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 23:07:23,268 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:23,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:23,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:07:23,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:23,742 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 34 proven. 70 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:07:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 131 states and 277 transitions. [2021-11-22 23:07:26,539 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 277 transitions. [2021-11-22 23:07:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-22 23:07:26,540 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:26,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:26,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 23:07:26,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 34 proven. 40 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:07:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:27,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 133 states and 282 transitions. [2021-11-22 23:07:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 282 transitions. [2021-11-22 23:07:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-22 23:07:27,928 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:27,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:27,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-22 23:07:27,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 34 proven. 40 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:07:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 135 states and 287 transitions. [2021-11-22 23:07:29,124 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 287 transitions. [2021-11-22 23:07:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-22 23:07:29,125 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:29,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:29,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-22 23:07:29,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:30,013 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 34 proven. 52 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:07:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:32,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 141 states and 304 transitions. [2021-11-22 23:07:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 304 transitions. [2021-11-22 23:07:32,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 23:07:32,060 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:32,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:32,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-22 23:07:32,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 36 proven. 53 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-22 23:07:33,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:33,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 143 states and 309 transitions. [2021-11-22 23:07:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 309 transitions. [2021-11-22 23:07:33,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 23:07:33,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:33,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:33,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:07:33,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:33,990 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-11-22 23:07:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 143 states and 308 transitions. [2021-11-22 23:07:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 308 transitions. [2021-11-22 23:07:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-22 23:07:34,495 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:34,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:34,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-22 23:07:34,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-22 23:07:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:41,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 157 states and 341 transitions. [2021-11-22 23:07:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 341 transitions. [2021-11-22 23:07:41,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-22 23:07:41,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:41,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:41,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-22 23:07:41,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-22 23:07:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 159 states and 344 transitions. [2021-11-22 23:07:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 344 transitions. [2021-11-22 23:07:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-22 23:07:43,328 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:43,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:43,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-22 23:07:43,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 38 proven. 51 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-22 23:07:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:45,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 161 states and 349 transitions. [2021-11-22 23:07:45,752 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 349 transitions. [2021-11-22 23:07:45,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-22 23:07:45,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:45,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:45,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 23:07:45,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 38 proven. 51 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-22 23:07:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 163 states and 354 transitions. [2021-11-22 23:07:47,212 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 354 transitions. [2021-11-22 23:07:47,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-22 23:07:47,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:47,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:47,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 23:07:47,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 38 proven. 51 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-22 23:07:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 165 states and 359 transitions. [2021-11-22 23:07:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 359 transitions. [2021-11-22 23:07:48,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-22 23:07:48,971 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:48,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:49,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 23:07:49,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 38 proven. 58 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-22 23:07:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 180 states and 395 transitions. [2021-11-22 23:07:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 395 transitions. [2021-11-22 23:07:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-22 23:07:55,204 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:55,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:55,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-22 23:07:55,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 40 proven. 99 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:08:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 185 states and 405 transitions. [2021-11-22 23:08:00,016 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 405 transitions. [2021-11-22 23:08:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-22 23:08:00,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:00,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:00,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 23:08:00,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 40 proven. 60 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:08:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 187 states and 410 transitions. [2021-11-22 23:08:02,527 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 410 transitions. [2021-11-22 23:08:02,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-22 23:08:02,528 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:02,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:02,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-22 23:08:02,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 40 proven. 60 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:08:03,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 189 states and 415 transitions. [2021-11-22 23:08:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 415 transitions. [2021-11-22 23:08:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-22 23:08:03,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:03,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:03,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-22 23:08:03,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 40 proven. 77 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:08:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 195 states and 432 transitions. [2021-11-22 23:08:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 432 transitions. [2021-11-22 23:08:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-22 23:08:08,314 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:08,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:08,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:08:08,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 40 proven. 54 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:08:17,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 200 states and 443 transitions. [2021-11-22 23:08:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 443 transitions. [2021-11-22 23:08:17,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-22 23:08:17,934 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:17,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:18,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-22 23:08:18,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 39 proven. 112 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-11-22 23:08:22,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 201 states and 443 transitions. [2021-11-22 23:08:22,148 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 443 transitions. [2021-11-22 23:08:22,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-22 23:08:22,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:22,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:22,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-22 23:08:22,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 42 proven. 78 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:08:24,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 203 states and 448 transitions. [2021-11-22 23:08:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 448 transitions. [2021-11-22 23:08:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-22 23:08:24,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:24,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:24,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:08:24,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 987 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-22 23:08:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:25,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 203 states and 447 transitions. [2021-11-22 23:08:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 447 transitions. [2021-11-22 23:08:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-22 23:08:25,702 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:25,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:25,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 23:08:25,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:08:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 203 states and 446 transitions. [2021-11-22 23:08:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 446 transitions. [2021-11-22 23:08:29,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-22 23:08:29,502 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:29,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:29,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-22 23:08:29,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 42 proven. 68 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:08:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:38,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 209 states and 464 transitions. [2021-11-22 23:08:38,969 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 464 transitions. [2021-11-22 23:08:38,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-22 23:08:38,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:38,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:39,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:08:39,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 44 proven. 71 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:08:40,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 211 states and 469 transitions. [2021-11-22 23:08:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 469 transitions. [2021-11-22 23:08:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-22 23:08:40,705 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:40,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:40,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-22 23:08:40,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:41,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 44 proven. 71 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:08:42,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:42,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 213 states and 474 transitions. [2021-11-22 23:08:42,186 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 474 transitions. [2021-11-22 23:08:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-22 23:08:42,188 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:42,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:42,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:08:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 44 proven. 71 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:08:43,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 215 states and 479 transitions. [2021-11-22 23:08:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 479 transitions. [2021-11-22 23:08:43,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-22 23:08:43,913 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:43,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:44,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:08:44,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 44 proven. 83 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:08:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 230 states and 515 transitions. [2021-11-22 23:08:54,496 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 515 transitions. [2021-11-22 23:08:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-22 23:08:54,497 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:54,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:54,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-22 23:08:54,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:55,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 46 proven. 133 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:09:02,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 235 states and 525 transitions. [2021-11-22 23:09:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 525 transitions. [2021-11-22 23:09:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-22 23:09:02,546 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:02,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:02,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:09:02,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 46 proven. 85 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:09:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 237 states and 530 transitions. [2021-11-22 23:09:05,885 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 530 transitions. [2021-11-22 23:09:05,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-22 23:09:05,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:05,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:05,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-22 23:09:05,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 46 proven. 85 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:09:08,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:08,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 239 states and 535 transitions. [2021-11-22 23:09:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 535 transitions. [2021-11-22 23:09:08,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-22 23:09:08,433 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:08,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:08,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-22 23:09:08,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 46 proven. 107 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:09:15,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 245 states and 552 transitions. [2021-11-22 23:09:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 552 transitions. [2021-11-22 23:09:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 23:09:15,913 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:15,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:16,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-22 23:09:16,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 108 proven. 86 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2021-11-22 23:09:37,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:37,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 261 states and 591 transitions. [2021-11-22 23:09:37,023 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 591 transitions. [2021-11-22 23:09:37,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 23:09:37,024 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:37,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:37,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:09:37,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 46 proven. 82 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:09:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:42,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 265 states and 597 transitions. [2021-11-22 23:09:42,634 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 597 transitions. [2021-11-22 23:09:42,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 23:09:42,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:42,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:42,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:09:42,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 46 proven. 82 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:09:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:47,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 267 states and 600 transitions. [2021-11-22 23:09:47,818 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 600 transitions. [2021-11-22 23:09:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-22 23:09:47,819 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:47,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:47,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 23:09:47,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 48 proven. 108 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:09:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:51,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 269 states and 605 transitions. [2021-11-22 23:09:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 605 transitions. [2021-11-22 23:09:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-22 23:09:51,417 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:51,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:51,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:09:51,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2021-11-22 23:09:53,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:53,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 269 states and 604 transitions. [2021-11-22 23:09:53,186 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 604 transitions. [2021-11-22 23:09:53,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-22 23:09:53,187 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:53,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:53,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-22 23:09:53,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 48 proven. 86 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:09:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 271 states and 609 transitions. [2021-11-22 23:09:59,836 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 609 transitions. [2021-11-22 23:09:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-22 23:09:59,837 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:59,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:00,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-22 23:10:00,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 48 proven. 86 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:10:03,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:03,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 273 states and 614 transitions. [2021-11-22 23:10:03,593 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 614 transitions. [2021-11-22 23:10:03,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-22 23:10:03,594 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:03,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:03,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-22 23:10:03,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 48 proven. 86 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:10:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 275 states and 619 transitions. [2021-11-22 23:10:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 619 transitions. [2021-11-22 23:10:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-22 23:10:06,650 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:06,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:06,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-22 23:10:06,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 48 proven. 86 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:10:09,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 277 states and 624 transitions. [2021-11-22 23:10:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 624 transitions. [2021-11-22 23:10:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-22 23:10:09,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:09,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:09,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-22 23:10:09,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 48 proven. 93 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:10:27,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 283 states and 642 transitions. [2021-11-22 23:10:27,629 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 642 transitions. [2021-11-22 23:10:27,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-22 23:10:27,631 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:27,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:27,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-22 23:10:27,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1346 backedges. 50 proven. 96 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:10:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 285 states and 647 transitions. [2021-11-22 23:10:30,251 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 647 transitions. [2021-11-22 23:10:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-22 23:10:30,252 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:30,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:30,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-22 23:10:30,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1346 backedges. 50 proven. 96 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:10:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:34,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 287 states and 652 transitions. [2021-11-22 23:10:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 652 transitions. [2021-11-22 23:10:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-22 23:10:34,532 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:34,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:34,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-22 23:10:34,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1346 backedges. 50 proven. 96 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:10:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 289 states and 657 transitions. [2021-11-22 23:10:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 657 transitions. [2021-11-22 23:10:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-22 23:10:38,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:38,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:38,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-22 23:10:38,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 50 proven. 113 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:10:59,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:59,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 304 states and 693 transitions. [2021-11-22 23:10:59,834 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 693 transitions. [2021-11-22 23:10:59,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 23:10:59,835 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:59,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:00,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 23:11:00,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 50 proven. 90 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:11:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 309 states and 705 transitions. [2021-11-22 23:11:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 705 transitions. [2021-11-22 23:11:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 23:11:31,325 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:31,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:31,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 23:11:31,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 50 proven. 90 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:11:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:40,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 311 states and 708 transitions. [2021-11-22 23:11:40,067 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 708 transitions. [2021-11-22 23:11:40,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 23:11:40,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:40,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:40,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 23:11:40,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 50 proven. 90 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:11:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:49,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 313 states and 711 transitions. [2021-11-22 23:11:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 711 transitions. [2021-11-22 23:11:49,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-22 23:11:49,701 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:49,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:49,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 23:11:49,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1524 backedges. 52 proven. 172 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:12:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:05,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 318 states and 721 transitions. [2021-11-22 23:12:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 721 transitions. [2021-11-22 23:12:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-22 23:12:05,296 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:05,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:05,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-22 23:12:05,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 52 proven. 115 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:12:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 320 states and 726 transitions. [2021-11-22 23:12:12,412 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 726 transitions. [2021-11-22 23:12:12,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-22 23:12:12,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:12,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:12,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-22 23:12:12,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 52 proven. 115 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:12:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 322 states and 731 transitions. [2021-11-22 23:12:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 731 transitions. [2021-11-22 23:12:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-22 23:12:18,153 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:18,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:18,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-22 23:12:18,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1494 backedges. 52 proven. 142 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:12:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 328 states and 748 transitions. [2021-11-22 23:12:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 748 transitions. [2021-11-22 23:12:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-22 23:12:33,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:33,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:33,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:12:33,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 52 proven. 90 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:12:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 328 states and 747 transitions. [2021-11-22 23:12:43,686 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 747 transitions. [2021-11-22 23:12:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-22 23:12:43,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:43,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:43,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-22 23:12:43,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1459 backedges. 52 proven. 107 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:13:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:14,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 334 states and 767 transitions. [2021-11-22 23:13:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 767 transitions. [2021-11-22 23:13:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-22 23:13:14,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:14,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:14,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-22 23:13:14,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1459 backedges. 52 proven. 107 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:13:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 336 states and 770 transitions. [2021-11-22 23:13:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 770 transitions. [2021-11-22 23:13:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-22 23:13:22,953 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:22,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:23,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:13:23,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 54 proven. 143 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:13:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 338 states and 775 transitions. [2021-11-22 23:13:30,214 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 775 transitions. [2021-11-22 23:13:30,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-22 23:13:30,216 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:30,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:30,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:13:30,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2021-11-22 23:13:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 338 states and 774 transitions. [2021-11-22 23:13:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 774 transitions. [2021-11-22 23:13:33,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-22 23:13:33,742 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:33,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:33,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 23:13:33,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 54 proven. 111 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:13:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:41,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 340 states and 779 transitions. [2021-11-22 23:13:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 779 transitions. [2021-11-22 23:13:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-22 23:13:41,344 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:41,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:41,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 23:13:41,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 54 proven. 111 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:13:46,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:46,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 342 states and 784 transitions. [2021-11-22 23:13:46,975 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 784 transitions. [2021-11-22 23:13:46,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-22 23:13:46,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:46,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:47,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-22 23:13:47,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:48,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 54 proven. 111 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:13:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 344 states and 789 transitions. [2021-11-22 23:13:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 789 transitions. [2021-11-22 23:13:51,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-22 23:13:51,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:51,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:51,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 23:13:51,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 54 proven. 111 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:13:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 346 states and 794 transitions. [2021-11-22 23:13:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 794 transitions. [2021-11-22 23:13:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-22 23:13:57,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:57,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:57,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 23:13:57,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1581 backedges. 54 proven. 123 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:14:32,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 352 states and 812 transitions. [2021-11-22 23:14:32,969 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 812 transitions. [2021-11-22 23:14:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-22 23:14:32,971 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:32,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:33,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 23:14:33,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1694 backedges. 56 proven. 126 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-22 23:14:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:37,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 354 states and 817 transitions. [2021-11-22 23:14:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 817 transitions. [2021-11-22 23:14:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-22 23:14:37,364 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:37,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:37,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 23:14:37,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1694 backedges. 56 proven. 126 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-22 23:14:42,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 356 states and 822 transitions. [2021-11-22 23:14:42,845 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 822 transitions. [2021-11-22 23:14:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-22 23:14:42,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:42,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:42,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 23:14:42,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1694 backedges. 56 proven. 126 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-22 23:14:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 358 states and 827 transitions. [2021-11-22 23:14:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 827 transitions. [2021-11-22 23:14:48,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-22 23:14:48,272 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:48,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:14:48,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 23:14:48,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:14:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1716 backedges. 56 proven. 148 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-22 23:15:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:15:32,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 373 states and 863 transitions. [2021-11-22 23:15:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 863 transitions. [2021-11-22 23:15:32,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-22 23:15:32,552 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:15:32,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:15:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:15:32,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-22 23:15:32,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:15:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 133 proven. 129 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2021-11-22 23:16:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:16:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 379 states and 885 transitions. [2021-11-22 23:16:30,695 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 885 transitions. [2021-11-22 23:16:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-22 23:16:30,697 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:16:30,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:16:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:16:30,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-22 23:16:30,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:16:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 133 proven. 129 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2021-11-22 23:17:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:17:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 395 states and 913 transitions. [2021-11-22 23:17:21,418 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 913 transitions. [2021-11-22 23:17:21,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-22 23:17:21,421 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:17:21,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:17:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:17:21,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-22 23:17:21,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:17:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 133 proven. 129 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2021-11-22 23:17:44,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:17:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 399 states and 919 transitions. [2021-11-22 23:17:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 919 transitions. [2021-11-22 23:17:44,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-22 23:17:44,897 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:17:44,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:17:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:17:44,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-22 23:17:44,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:17:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 58 proven. 216 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:18:14,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:14,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 404 states and 929 transitions. [2021-11-22 23:18:14,956 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 929 transitions. [2021-11-22 23:18:14,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-22 23:18:14,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:14,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:15,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:18:15,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 58 proven. 150 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:18:29,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 406 states and 934 transitions. [2021-11-22 23:18:29,770 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 934 transitions. [2021-11-22 23:18:29,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-22 23:18:29,771 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:29,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:29,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:18:29,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 58 proven. 150 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:18:37,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 408 states and 939 transitions. [2021-11-22 23:18:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 939 transitions. [2021-11-22 23:18:37,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-22 23:18:37,622 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:37,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:37,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-22 23:18:37,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 58 proven. 182 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:19:06,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 414 states and 956 transitions. [2021-11-22 23:19:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 956 transitions. [2021-11-22 23:19:06,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-22 23:19:06,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:06,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:06,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-22 23:19:06,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 58 proven. 130 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:19:16,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:16,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 416 states and 961 transitions. [2021-11-22 23:19:16,344 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 961 transitions. [2021-11-22 23:19:16,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-22 23:19:16,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:16,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:16,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-22 23:19:16,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 58 proven. 130 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:19:24,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 418 states and 966 transitions. [2021-11-22 23:19:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 966 transitions. [2021-11-22 23:19:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-22 23:19:24,453 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:24,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:24,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:19:24,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 58 proven. 130 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:19:36,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:36,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 420 states and 971 transitions. [2021-11-22 23:19:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 971 transitions. [2021-11-22 23:19:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-22 23:19:36,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:36,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:36,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-22 23:19:36,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 58 proven. 130 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked.