./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.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_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/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_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/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_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/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 d8ee33f278cd93a3b1e0d551730c6407889b70e338ebc3c857541220d9b0f75f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:20:12,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:20:12,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:20:12,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:20:12,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:20:12,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:20:12,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:20:12,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:20:12,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:20:12,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:20:12,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:20:12,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:20:12,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:20:12,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:20:12,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:20:12,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:20:12,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:20:12,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:20:12,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:20:12,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:20:13,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:20:13,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:20:13,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:20:13,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:20:13,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:20:13,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:20:13,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:20:13,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:20:13,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:20:13,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:20:13,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:20:13,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:20:13,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:20:13,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:20:13,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:20:13,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:20:13,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:20:13,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:20:13,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:20:13,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:20:13,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:20:13,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:20:13,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:20:13,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:20:13,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:20:13,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:20:13,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:20:13,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:20:13,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:20:13,079 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:20:13,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:20:13,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:20:13,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:20:13,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:20:13,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:20:13,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:20:13,081 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:20:13,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:20:13,081 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:20:13,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:20:13,081 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:20:13,081 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:20:13,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:20:13,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:20:13,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:20:13,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:20:13,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:20:13,083 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:20:13,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:20:13,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:20:13,083 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_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8ee33f278cd93a3b1e0d551730c6407889b70e338ebc3c857541220d9b0f75f [2021-11-23 01:20:13,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:20:13,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:20:13,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:20:13,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:20:13,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:20:13,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c [2021-11-23 01:20:13,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/data/6b24ab06d/9feafb9ac3d949508378c9ec2e11831b/FLAG8f91dcee0 [2021-11-23 01:20:13,975 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:20:13,975 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c [2021-11-23 01:20:13,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/data/6b24ab06d/9feafb9ac3d949508378c9ec2e11831b/FLAG8f91dcee0 [2021-11-23 01:20:14,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/data/6b24ab06d/9feafb9ac3d949508378c9ec2e11831b [2021-11-23 01:20:14,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:20:14,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:20:14,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:20:14,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:20:14,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:20:14,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488c13f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14, skipping insertion in model container [2021-11-23 01:20:14,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:20:14,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:20:14,586 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_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c[597,610] [2021-11-23 01:20:14,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:20:14,611 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:20:14,624 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_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c[597,610] [2021-11-23 01:20:14,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:20:14,644 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:20:14,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14 WrapperNode [2021-11-23 01:20:14,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:20:14,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:20:14,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:20:14,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:20:14,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,705 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-23 01:20:14,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:20:14,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:20:14,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:20:14,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:20:14,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:20:14,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:20:14,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:20:14,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:20:14,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:14" (1/1) ... [2021-11-23 01:20:14,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:20:14,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:20:14,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:20:14,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7634e4a-de75-4ca4-b5ba-ea1fbe6a3687/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:20:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:20:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:20:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:20:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:20:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:20:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:20:14,926 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:20:14,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:20:15,045 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:20:15,085 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:20:15,097 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:20:15,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:15 BoogieIcfgContainer [2021-11-23 01:20:15,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:20:15,110 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:20:15,110 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:20:15,120 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:20:15,121 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:15" (1/1) ... [2021-11-23 01:20:15,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:20:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-23 01:20:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-23 01:20:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:20:15,210 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:15,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:15,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:20:15,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:15,625 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 01:20:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-23 01:20:15,762 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 01:20:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:20:15,767 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:15,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:15,884 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 01:20:16,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 01:20:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 01:20:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:20:16,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:16,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:16,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:20:16,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:16,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2021-11-23 01:20:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 01:20:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:20:16,664 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:16,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:16,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 01:20:16,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:16,930 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:20:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:21,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:20:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:21,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-11-23 01:20:21,490 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-11-23 01:20:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:20:21,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:21,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:21,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:20:21,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:21,673 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 01:20:23,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 74 transitions. [2021-11-23 01:20:23,229 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2021-11-23 01:20:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:20:23,231 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:23,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:23,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:20:23,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:20:25,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 41 states and 90 transitions. [2021-11-23 01:20:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 90 transitions. [2021-11-23 01:20:25,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:20:25,169 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:25,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:25,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:20:25,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:20:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:26,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 42 states and 92 transitions. [2021-11-23 01:20:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 92 transitions. [2021-11-23 01:20:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:20:26,364 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:26,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:26,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:20:26,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:27,055 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:20:28,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:20:30,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 45 states and 105 transitions. [2021-11-23 01:20:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 105 transitions. [2021-11-23 01:20:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:20:30,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:30,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:30,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:20:30,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 53 states and 141 transitions. [2021-11-23 01:20:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 141 transitions. [2021-11-23 01:20:34,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:20:34,487 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:34,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:34,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:20:34,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 54 states and 142 transitions. [2021-11-23 01:20:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 142 transitions. [2021-11-23 01:20:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:20:35,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:35,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:35,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:20:35,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:20:39,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 58 states and 168 transitions. [2021-11-23 01:20:39,063 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 168 transitions. [2021-11-23 01:20:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:20:39,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:39,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:39,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:20:39,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:20:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:41,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 58 states and 159 transitions. [2021-11-23 01:20:41,401 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 159 transitions. [2021-11-23 01:20:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:20:41,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:41,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:41,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:20:41,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:42,777 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:20:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:20:47,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:20:50,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 61 states and 179 transitions. [2021-11-23 01:20:50,102 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 179 transitions. [2021-11-23 01:20:50,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:20:50,104 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:50,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:50,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:20:50,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:56,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 65 states and 192 transitions. [2021-11-23 01:20:56,384 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 192 transitions. [2021-11-23 01:20:56,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:20:56,386 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:56,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:56,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:20:56,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 70 states and 225 transitions. [2021-11-23 01:20:58,929 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 225 transitions. [2021-11-23 01:20:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:20:58,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:58,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:58,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:20:58,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:21:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:21:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:21:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 74 states and 258 transitions. [2021-11-23 01:21:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 258 transitions. [2021-11-23 01:21:07,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:21:07,120 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:21:07,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:21:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:21:07,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:21:07,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:21:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:21:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:21:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 74 states and 242 transitions. [2021-11-23 01:21:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 242 transitions. [2021-11-23 01:21:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:21:12,070 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:21:12,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:21:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:21:12,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:21:12,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:21:16,249 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:21:23,273 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:22:01,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:22:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 91 states and 328 transitions. [2021-11-23 01:22:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 328 transitions. [2021-11-23 01:22:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:22:10,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:10,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:10,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:22:10,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:13,994 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:22:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:22:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 94 states and 356 transitions. [2021-11-23 01:22:34,052 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 356 transitions. [2021-11-23 01:22:34,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:22:34,054 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:34,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:34,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:22:34,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:53,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 98 states and 369 transitions. [2021-11-23 01:22:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 369 transitions. [2021-11-23 01:22:53,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:22:53,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:53,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:53,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:22:53,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 102 states and 380 transitions. [2021-11-23 01:23:11,846 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 380 transitions. [2021-11-23 01:23:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:23:11,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:11,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:11,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:23:11,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:18,544 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 01:23:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 106 states and 418 transitions. [2021-11-23 01:23:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 418 transitions. [2021-11-23 01:23:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:23:39,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:39,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:39,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:23:39,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:46,370 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 01:23:55,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 106 states and 397 transitions. [2021-11-23 01:23:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 397 transitions. [2021-11-23 01:23:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:23:55,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:55,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:55,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:23:55,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:02,513 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 01:24:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:12,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 106 states and 376 transitions. [2021-11-23 01:24:12,355 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 376 transitions. [2021-11-23 01:24:12,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:24:12,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:12,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:12,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:24:12,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:22,907 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:24:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:25:11,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:25:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:25:34,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 112 states and 429 transitions. [2021-11-23 01:25:34,726 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 429 transitions. [2021-11-23 01:25:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:25:34,727 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:25:34,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:25:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:25:34,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:25:34,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:25:52,168 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:26:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:27:19,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 117 states and 467 transitions. [2021-11-23 01:27:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 467 transitions. [2021-11-23 01:27:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:27:19,770 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:19,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:19,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:27:19,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:27:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:28:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:28:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 121 states and 480 transitions. [2021-11-23 01:28:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 480 transitions. [2021-11-23 01:28:09,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:28:09,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:28:09,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:28:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:28:09,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:28:09,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:28:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:28:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:28:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 125 states and 492 transitions. [2021-11-23 01:28:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 492 transitions. [2021-11-23 01:28:43,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:28:43,131 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:28:43,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:28:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:28:43,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:28:43,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:29:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:29:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:29:55,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 129 states and 530 transitions. [2021-11-23 01:29:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 530 transitions. [2021-11-23 01:29:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:29:55,448 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:29:55,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:29:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:29:55,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 01:29:55,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:30:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:30:38,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:38,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 129 states and 504 transitions. [2021-11-23 01:30:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 504 transitions. [2021-11-23 01:30:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:30:38,958 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:38,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:39,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 01:30:39,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:30:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:31:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:31:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 129 states and 478 transitions. [2021-11-23 01:31:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 478 transitions. [2021-11-23 01:31:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 01:31:10,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:31:10,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:31:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:31:10,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:31:10,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:31:53,259 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:32:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.