./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/ps2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/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_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/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_80a62335-b57e-4b36-b606-700be399274c/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 179b0134270d97f57074f9ac11d0788729a2f9ba65b60cccc5fdcd06091925db --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:22:25,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:22:25,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:22:25,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:22:25,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:22:25,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:22:25,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:22:25,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:22:25,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:22:25,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:22:25,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:22:25,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:22:25,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:22:25,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:22:25,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:22:25,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:22:25,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:22:25,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:22:25,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:22:25,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:22:25,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:22:25,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:22:25,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:22:25,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:22:25,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:22:25,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:22:25,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:22:25,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:22:25,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:22:25,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:22:25,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:22:25,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:22:25,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:22:25,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:22:25,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:22:25,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:22:25,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:22:25,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:22:25,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:22:25,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:22:25,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:22:25,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:22:25,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:22:25,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:22:25,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:22:25,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:22:25,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:22:25,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:22:25,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:22:25,672 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:22:25,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:22:25,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:22:25,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:22:25,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:22:25,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:22:25,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:22:25,674 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:22:25,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:22:25,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:22:25,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:22:25,675 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:22:25,676 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:22:25,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:22:25,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:22:25,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:22:25,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:22:25,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:22:25,677 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:22:25,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:22:25,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:22:25,678 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_80a62335-b57e-4b36-b606-700be399274c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 179b0134270d97f57074f9ac11d0788729a2f9ba65b60cccc5fdcd06091925db [2021-11-23 01:22:26,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:22:26,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:22:26,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:22:26,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:22:26,048 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:22:26,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench/ps2-ll.c [2021-11-23 01:22:26,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/data/d8c4182c7/2b307b81a6f64bfd95b09322f8d8b6a3/FLAG36ac80089 [2021-11-23 01:22:26,650 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:22:26,651 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/sv-benchmarks/c/nla-digbench/ps2-ll.c [2021-11-23 01:22:26,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/data/d8c4182c7/2b307b81a6f64bfd95b09322f8d8b6a3/FLAG36ac80089 [2021-11-23 01:22:27,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/data/d8c4182c7/2b307b81a6f64bfd95b09322f8d8b6a3 [2021-11-23 01:22:27,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:22:27,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:22:27,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:22:27,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:22:27,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:22:27,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d412cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27, skipping insertion in model container [2021-11-23 01:22:27,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:22:27,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:22:27,250 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_80a62335-b57e-4b36-b606-700be399274c/sv-benchmarks/c/nla-digbench/ps2-ll.c[454,467] [2021-11-23 01:22:27,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:22:27,270 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:22:27,287 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_80a62335-b57e-4b36-b606-700be399274c/sv-benchmarks/c/nla-digbench/ps2-ll.c[454,467] [2021-11-23 01:22:27,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:22:27,312 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:22:27,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27 WrapperNode [2021-11-23 01:22:27,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:22:27,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:22:27,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:22:27,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:22:27,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,351 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2021-11-23 01:22:27,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:22:27,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:22:27,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:22:27,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:22:27,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:22:27,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:22:27,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:22:27,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:22:27,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:22:27,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:22:27,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:22:27,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a62335-b57e-4b36-b606-700be399274c/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:22:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:22:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:22:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:22:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:22:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:22:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:22:27,542 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:22:27,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:22:27,691 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:22:27,711 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:22:27,711 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:22:27,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:22:27 BoogieIcfgContainer [2021-11-23 01:22:27,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:22:27,716 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:22:27,716 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:22:27,726 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:22:27,726 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:22:27" (1/1) ... [2021-11-23 01:22:27,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:22:27,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:27,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-11-23 01:22:27,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-23 01:22:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:22:27,827 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:27,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:27,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:22:27,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-11-23 01:22:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-23 01:22:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:22:28,202 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:28,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:28,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:22:28,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2021-11-23 01:22:28,720 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-23 01:22:28,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:22:28,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:28,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:28,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:22:28,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:28,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2021-11-23 01:22:29,074 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2021-11-23 01:22:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:22:29,075 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:29,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:29,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:22:29,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:22:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-11-23 01:22:29,500 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-11-23 01:22:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:22:29,501 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:29,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:29,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:22:29,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:22:30,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-11-23 01:22:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-11-23 01:22:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 01:22:30,104 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:30,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:30,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:22:30,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:30,356 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:22:30,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2021-11-23 01:22:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-11-23 01:22:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 01:22:30,714 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:30,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:30,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:22:30,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:22:31,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2021-11-23 01:22:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-11-23 01:22:31,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:22:31,443 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:31,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:31,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:22:31,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:22:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:32,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2021-11-23 01:22:32,299 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2021-11-23 01:22:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 01:22:32,301 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:32,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:32,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:22:32,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:32,608 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:22:33,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:33,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2021-11-23 01:22:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2021-11-23 01:22:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:22:33,274 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:33,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:33,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 01:22:33,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:22:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 68 transitions. [2021-11-23 01:22:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 68 transitions. [2021-11-23 01:22:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:22:34,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:34,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:34,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:22:34,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:22:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2021-11-23 01:22:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2021-11-23 01:22:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 01:22:36,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:36,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:36,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-23 01:22:36,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 01:22:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:37,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 51 states and 78 transitions. [2021-11-23 01:22:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2021-11-23 01:22:37,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-23 01:22:37,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:37,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:37,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 01:22:37,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:22:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 54 states and 83 transitions. [2021-11-23 01:22:39,384 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 83 transitions. [2021-11-23 01:22:39,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-23 01:22:39,385 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:39,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:39,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-23 01:22:39,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:40,074 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:22:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 88 transitions. [2021-11-23 01:22:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 88 transitions. [2021-11-23 01:22:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 01:22:41,670 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:41,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:41,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-23 01:22:41,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:22:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 60 states and 93 transitions. [2021-11-23 01:22:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2021-11-23 01:22:44,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 01:22:44,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:44,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:44,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-23 01:22:44,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:45,226 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-23 01:22:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2021-11-23 01:22:47,253 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2021-11-23 01:22:47,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-23 01:22:47,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:47,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:47,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-23 01:22:47,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:48,413 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-23 01:22:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 66 states and 103 transitions. [2021-11-23 01:22:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 103 transitions. [2021-11-23 01:22:50,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 01:22:50,805 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:50,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:51,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-23 01:22:51,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:22:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2021-11-23 01:22:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2021-11-23 01:22:54,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-23 01:22:54,978 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:54,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:55,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-23 01:22:55,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:22:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:59,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2021-11-23 01:22:59,180 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2021-11-23 01:22:59,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 01:22:59,182 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:59,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:59,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 79 conjunts are in the unsatisfiable core [2021-11-23 01:22:59,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:00,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:23:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 75 states and 118 transitions. [2021-11-23 01:23:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2021-11-23 01:23:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 01:23:03,875 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:03,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:03,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-23 01:23:03,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-23 01:23:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 78 states and 123 transitions. [2021-11-23 01:23:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 123 transitions. [2021-11-23 01:23:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-23 01:23:08,755 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:08,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:08,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-23 01:23:08,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-23 01:23:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 81 states and 128 transitions. [2021-11-23 01:23:13,735 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 128 transitions. [2021-11-23 01:23:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-23 01:23:13,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:13,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:13,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-23 01:23:13,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-23 01:23:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 84 states and 133 transitions. [2021-11-23 01:23:19,427 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 133 transitions. [2021-11-23 01:23:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-23 01:23:19,429 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:19,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:19,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-23 01:23:19,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-23 01:23:26,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:26,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 87 states and 138 transitions. [2021-11-23 01:23:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 138 transitions. [2021-11-23 01:23:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-23 01:23:26,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:26,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:26,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-23 01:23:26,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-23 01:23:33,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:33,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 90 states and 143 transitions. [2021-11-23 01:23:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2021-11-23 01:23:33,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-23 01:23:33,648 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:33,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:33,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 103 conjunts are in the unsatisfiable core [2021-11-23 01:23:33,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-23 01:23:41,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:41,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 93 states and 148 transitions. [2021-11-23 01:23:41,547 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 148 transitions. [2021-11-23 01:23:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-23 01:23:41,548 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:41,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:41,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 107 conjunts are in the unsatisfiable core [2021-11-23 01:23:41,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-23 01:23:50,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 96 states and 153 transitions. [2021-11-23 01:23:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 153 transitions. [2021-11-23 01:23:50,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-23 01:23:50,878 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:50,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:51,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-23 01:23:51,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:52,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-23 01:24:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 99 states and 158 transitions. [2021-11-23 01:24:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 158 transitions. [2021-11-23 01:24:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-23 01:24:00,169 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:00,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:00,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 115 conjunts are in the unsatisfiable core [2021-11-23 01:24:00,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-23 01:24:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 102 states and 163 transitions. [2021-11-23 01:24:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 163 transitions. [2021-11-23 01:24:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-23 01:24:10,950 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:10,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:11,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 119 conjunts are in the unsatisfiable core [2021-11-23 01:24:11,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-23 01:24:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 105 states and 168 transitions. [2021-11-23 01:24:22,449 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 168 transitions. [2021-11-23 01:24:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-23 01:24:22,451 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:22,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:22,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 123 conjunts are in the unsatisfiable core [2021-11-23 01:24:22,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-23 01:24:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 108 states and 173 transitions. [2021-11-23 01:24:35,581 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 173 transitions. [2021-11-23 01:24:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-23 01:24:35,582 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:35,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:35,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 127 conjunts are in the unsatisfiable core [2021-11-23 01:24:35,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2021-11-23 01:24:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:47,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 111 states and 178 transitions. [2021-11-23 01:24:47,371 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 178 transitions. [2021-11-23 01:24:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-23 01:24:47,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:47,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:47,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 131 conjunts are in the unsatisfiable core [2021-11-23 01:24:47,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-23 01:25:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:25:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 114 states and 183 transitions. [2021-11-23 01:25:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 183 transitions. [2021-11-23 01:25:02,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-23 01:25:02,301 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:25:02,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:25:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:25:02,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 135 conjunts are in the unsatisfiable core [2021-11-23 01:25:02,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:25:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-23 01:25:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:25:21,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 117 states and 188 transitions. [2021-11-23 01:25:21,295 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 188 transitions. [2021-11-23 01:25:21,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-23 01:25:21,297 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:25:21,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:25:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:25:21,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 139 conjunts are in the unsatisfiable core [2021-11-23 01:25:21,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:25:26,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-23 01:25:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:25:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 120 states and 193 transitions. [2021-11-23 01:25:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 193 transitions. [2021-11-23 01:25:38,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-23 01:25:38,896 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:25:38,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:25:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:25:39,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 143 conjunts are in the unsatisfiable core [2021-11-23 01:25:39,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:25:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2021-11-23 01:26:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:26:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 123 states and 198 transitions. [2021-11-23 01:26:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 198 transitions. [2021-11-23 01:26:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-23 01:26:03,424 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:26:03,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:26:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:26:03,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 147 conjunts are in the unsatisfiable core [2021-11-23 01:26:03,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:26:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2021-11-23 01:26:26,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:26:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 126 states and 203 transitions. [2021-11-23 01:26:26,442 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 203 transitions. [2021-11-23 01:26:26,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-23 01:26:26,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:26:26,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:26:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:26:26,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 151 conjunts are in the unsatisfiable core [2021-11-23 01:26:26,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:26:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2021-11-23 01:27:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:00,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 129 states and 208 transitions. [2021-11-23 01:27:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 208 transitions. [2021-11-23 01:27:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-23 01:27:00,220 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:00,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:00,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 155 conjunts are in the unsatisfiable core [2021-11-23 01:27:00,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:27:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2021-11-23 01:27:32,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 132 states and 213 transitions. [2021-11-23 01:27:32,938 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 213 transitions. [2021-11-23 01:27:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-23 01:27:32,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:32,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:33,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 159 conjunts are in the unsatisfiable core [2021-11-23 01:27:33,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:27:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2021-11-23 01:28:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:28:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 135 states and 218 transitions. [2021-11-23 01:28:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 218 transitions. [2021-11-23 01:28:10,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-23 01:28:10,062 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:28:10,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:28:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:28:10,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 163 conjunts are in the unsatisfiable core [2021-11-23 01:28:10,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:28:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2021-11-23 01:28:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:28:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 138 states and 223 transitions. [2021-11-23 01:28:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 223 transitions. [2021-11-23 01:28:59,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-23 01:28:59,743 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:28:59,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:28:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:28:59,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 167 conjunts are in the unsatisfiable core [2021-11-23 01:28:59,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:29:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2021-11-23 01:29:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:29:43,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 141 states and 228 transitions. [2021-11-23 01:29:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 228 transitions. [2021-11-23 01:29:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-23 01:29:43,651 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:29:43,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:29:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:29:43,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 171 conjunts are in the unsatisfiable core [2021-11-23 01:29:43,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:30:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2021-11-23 01:30:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:54,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 144 states and 233 transitions. [2021-11-23 01:30:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 233 transitions. [2021-11-23 01:30:54,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-23 01:30:54,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:54,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 175 conjunts are in the unsatisfiable core [2021-11-23 01:30:55,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:31:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2021-11-23 01:31:47,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:31:47,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 147 states and 238 transitions. [2021-11-23 01:31:47,115 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 238 transitions. [2021-11-23 01:31:47,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-23 01:31:47,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:31:47,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:31:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:31:47,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 179 conjunts are in the unsatisfiable core [2021-11-23 01:31:47,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:32:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2021-11-23 01:32:56,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:32:56,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 150 states and 243 transitions. [2021-11-23 01:32:56,091 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2021-11-23 01:32:56,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-23 01:32:56,093 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:32:56,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:32:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:32:56,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 183 conjunts are in the unsatisfiable core [2021-11-23 01:32:56,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:33:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2021-11-23 01:34:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 153 states and 248 transitions. [2021-11-23 01:34:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 248 transitions. [2021-11-23 01:34:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-23 01:34:13,489 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:13,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:13,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 187 conjunts are in the unsatisfiable core [2021-11-23 01:34:13,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:34:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 90 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2021-11-23 01:35:22,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:22,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 156 states and 253 transitions. [2021-11-23 01:35:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 253 transitions. [2021-11-23 01:35:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-23 01:35:22,463 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:22,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:22,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 191 conjunts are in the unsatisfiable core [2021-11-23 01:35:22,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 92 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.