./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nested6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN --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 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 06:24:58,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 06:24:58,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 06:24:58,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 06:24:58,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 06:24:58,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 06:24:58,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 06:24:58,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 06:24:58,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 06:24:58,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 06:24:58,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 06:24:58,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 06:24:58,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 06:24:58,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 06:24:58,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 06:24:58,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 06:24:58,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 06:24:58,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 06:24:58,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 06:24:58,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 06:24:58,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 06:24:58,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 06:24:58,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 06:24:58,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 06:24:58,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 06:24:58,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 06:24:58,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 06:24:58,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 06:24:58,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 06:24:58,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 06:24:58,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 06:24:58,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 06:24:58,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 06:24:58,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 06:24:58,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 06:24:58,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 06:24:58,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 06:24:58,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 06:24:58,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 06:24:58,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 06:24:58,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 06:24:58,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-21 06:24:58,696 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 06:24:58,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 06:24:58,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 06:24:58,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 06:24:58,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 06:24:58,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 06:24:58,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 06:24:58,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 06:24:58,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 06:24:58,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 06:24:58,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 06:24:58,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 06:24:58,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 06:24:58,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 06:24:58,702 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 06:24:58,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 06:24:58,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 06:24:58,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 06:24:58,703 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 06:24:58,703 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 06:24:58,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 06:24:58,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:24:58,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 06:24:58,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 06:24:58,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 06:24:58,705 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 06:24:58,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 06:24:58,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 06:24:58,706 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_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc [2021-11-21 06:24:59,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 06:24:59,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 06:24:59,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 06:24:59,059 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 06:24:59,060 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 06:24:59,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/loop-invgen/nested6.i [2021-11-21 06:24:59,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/data/bee9bd757/f708027c9062454f80c990e766731884/FLAG0025fd0f4 [2021-11-21 06:24:59,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 06:24:59,718 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/sv-benchmarks/c/loop-invgen/nested6.i [2021-11-21 06:24:59,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/data/bee9bd757/f708027c9062454f80c990e766731884/FLAG0025fd0f4 [2021-11-21 06:25:00,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/data/bee9bd757/f708027c9062454f80c990e766731884 [2021-11-21 06:25:00,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 06:25:00,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 06:25:00,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 06:25:00,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 06:25:00,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 06:25:00,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224aa76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00, skipping insertion in model container [2021-11-21 06:25:00,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 06:25:00,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 06:25:00,296 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_4adb33bb-fba6-4781-a744-dda66332b39e/sv-benchmarks/c/loop-invgen/nested6.i[893,906] [2021-11-21 06:25:00,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:25:00,323 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 06:25:00,344 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_4adb33bb-fba6-4781-a744-dda66332b39e/sv-benchmarks/c/loop-invgen/nested6.i[893,906] [2021-11-21 06:25:00,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:25:00,365 INFO L208 MainTranslator]: Completed translation [2021-11-21 06:25:00,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00 WrapperNode [2021-11-21 06:25:00,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 06:25:00,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 06:25:00,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 06:25:00,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 06:25:00,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,409 INFO L137 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2021-11-21 06:25:00,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 06:25:00,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 06:25:00,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 06:25:00,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 06:25:00,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 06:25:00,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 06:25:00,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 06:25:00,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 06:25:00,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:25:00,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 06:25:00,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 06:25:00,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 06:25:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 06:25:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 06:25:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 06:25:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 06:25:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 06:25:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 06:25:00,598 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 06:25:00,600 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 06:25:00,783 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 06:25:00,804 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 06:25:00,804 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-21 06:25:00,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:00 BoogieIcfgContainer [2021-11-21 06:25:00,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 06:25:00,808 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 06:25:00,808 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 06:25:00,818 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 06:25:00,819 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:00" (1/1) ... [2021-11-21 06:25:00,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 06:25:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2021-11-21 06:25:00,885 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-21 06:25:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 06:25:00,887 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:00,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:25:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:01,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 39 transitions. [2021-11-21 06:25:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2021-11-21 06:25:01,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 06:25:01,321 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:01,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:25:01,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 48 transitions. [2021-11-21 06:25:01,599 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2021-11-21 06:25:01,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 06:25:01,600 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:01,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:25:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:01,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 36 states and 59 transitions. [2021-11-21 06:25:01,936 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2021-11-21 06:25:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 06:25:01,940 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:01,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:25:02,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:02,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 60 transitions. [2021-11-21 06:25:02,045 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2021-11-21 06:25:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 06:25:02,046 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:02,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:25:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:02,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 41 states and 72 transitions. [2021-11-21 06:25:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2021-11-21 06:25:02,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 06:25:02,742 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:02,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:25:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 41 states and 71 transitions. [2021-11-21 06:25:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 71 transitions. [2021-11-21 06:25:02,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 06:25:02,863 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:02,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 06:25:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 36 states and 60 transitions. [2021-11-21 06:25:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 60 transitions. [2021-11-21 06:25:03,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 06:25:03,110 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:03,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:25:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 42 states and 75 transitions. [2021-11-21 06:25:04,346 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2021-11-21 06:25:04,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 06:25:04,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:04,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 06:25:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 45 states and 84 transitions. [2021-11-21 06:25:04,772 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2021-11-21 06:25:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 06:25:04,774 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:04,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 06:25:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 49 states and 93 transitions. [2021-11-21 06:25:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2021-11-21 06:25:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 06:25:05,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:05,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 06:25:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 50 states and 94 transitions. [2021-11-21 06:25:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 94 transitions. [2021-11-21 06:25:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 06:25:05,787 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:05,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 06:25:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:06,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 54 states and 104 transitions. [2021-11-21 06:25:06,719 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 104 transitions. [2021-11-21 06:25:06,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 06:25:06,721 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:06,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 06:25:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:06,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 55 states and 104 transitions. [2021-11-21 06:25:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 104 transitions. [2021-11-21 06:25:06,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 06:25:06,988 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:06,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 06:25:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:07,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 59 states and 112 transitions. [2021-11-21 06:25:07,712 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 112 transitions. [2021-11-21 06:25:07,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 06:25:07,713 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:07,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 06:25:08,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 59 states and 110 transitions. [2021-11-21 06:25:08,077 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 110 transitions. [2021-11-21 06:25:08,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 06:25:08,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:08,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:08,109 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-21 06:25:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:08,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 58 states and 107 transitions. [2021-11-21 06:25:08,566 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 107 transitions. [2021-11-21 06:25:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 06:25:08,567 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:08,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 06:25:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:09,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 60 states and 112 transitions. [2021-11-21 06:25:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 112 transitions. [2021-11-21 06:25:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 06:25:09,531 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:09,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-21 06:25:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 61 states and 113 transitions. [2021-11-21 06:25:09,835 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2021-11-21 06:25:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 06:25:09,837 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:09,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-21 06:25:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:09,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 60 states and 111 transitions. [2021-11-21 06:25:09,968 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 111 transitions. [2021-11-21 06:25:09,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-21 06:25:09,969 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:09,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-21 06:25:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 66 states and 121 transitions. [2021-11-21 06:25:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 121 transitions. [2021-11-21 06:25:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-21 06:25:11,299 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:11,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 06:25:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:13,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 74 states and 137 transitions. [2021-11-21 06:25:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 137 transitions. [2021-11-21 06:25:13,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-21 06:25:13,353 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:13,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 06:25:13,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 75 states and 138 transitions. [2021-11-21 06:25:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 138 transitions. [2021-11-21 06:25:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 06:25:13,719 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:13,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-21 06:25:14,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 77 states and 143 transitions. [2021-11-21 06:25:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 143 transitions. [2021-11-21 06:25:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-21 06:25:14,233 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:14,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-21 06:25:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:14,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 79 states and 146 transitions. [2021-11-21 06:25:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 146 transitions. [2021-11-21 06:25:14,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 06:25:14,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:14,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-21 06:25:17,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:17,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 88 states and 169 transitions. [2021-11-21 06:25:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 169 transitions. [2021-11-21 06:25:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 06:25:17,681 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:17,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-21 06:25:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 96 states and 185 transitions. [2021-11-21 06:25:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 185 transitions. [2021-11-21 06:25:19,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 06:25:19,641 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:19,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 17 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-21 06:25:20,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:20,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 97 states and 186 transitions. [2021-11-21 06:25:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2021-11-21 06:25:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 06:25:20,318 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:20,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-21 06:25:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 99 states and 193 transitions. [2021-11-21 06:25:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 193 transitions. [2021-11-21 06:25:21,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-21 06:25:21,104 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:21,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:21,280 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 47 proven. 39 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-21 06:25:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 103 states and 200 transitions. [2021-11-21 06:25:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 200 transitions. [2021-11-21 06:25:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 06:25:22,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:22,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-21 06:25:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:23,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 109 states and 209 transitions. [2021-11-21 06:25:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 209 transitions. [2021-11-21 06:25:23,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 06:25:23,446 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:23,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-21 06:25:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 111 states and 212 transitions. [2021-11-21 06:25:24,308 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 212 transitions. [2021-11-21 06:25:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 06:25:24,311 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:24,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-21 06:25:24,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 111 states and 211 transitions. [2021-11-21 06:25:24,832 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 211 transitions. [2021-11-21 06:25:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-21 06:25:24,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:24,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 76 proven. 22 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-21 06:25:27,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 121 states and 231 transitions. [2021-11-21 06:25:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 231 transitions. [2021-11-21 06:25:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-21 06:25:27,411 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:27,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 22 proven. 47 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-21 06:25:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 127 states and 245 transitions. [2021-11-21 06:25:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 245 transitions. [2021-11-21 06:25:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 06:25:30,729 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:30,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-11-21 06:25:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 128 states and 245 transitions. [2021-11-21 06:25:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 245 transitions. [2021-11-21 06:25:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-21 06:25:31,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:31,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 53 proven. 32 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-21 06:25:36,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:36,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 144 states and 280 transitions. [2021-11-21 06:25:36,418 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 280 transitions. [2021-11-21 06:25:36,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-21 06:25:36,419 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:36,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:36,565 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 92 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-21 06:25:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 149 states and 292 transitions. [2021-11-21 06:25:37,825 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 292 transitions. [2021-11-21 06:25:37,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-21 06:25:37,826 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:37,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 53 proven. 32 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-21 06:25:39,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:39,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 157 states and 305 transitions. [2021-11-21 06:25:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 305 transitions. [2021-11-21 06:25:39,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-21 06:25:39,872 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:39,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 92 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-21 06:25:40,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:40,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 158 states and 305 transitions. [2021-11-21 06:25:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 305 transitions. [2021-11-21 06:25:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-21 06:25:40,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:40,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 53 proven. 32 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-21 06:25:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:41,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 159 states and 305 transitions. [2021-11-21 06:25:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 305 transitions. [2021-11-21 06:25:41,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-21 06:25:41,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:41,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 9 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-21 06:25:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 161 states and 309 transitions. [2021-11-21 06:25:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 309 transitions. [2021-11-21 06:25:41,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-21 06:25:41,689 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:41,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 48 proven. 25 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-21 06:25:42,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:42,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 163 states and 317 transitions. [2021-11-21 06:25:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 317 transitions. [2021-11-21 06:25:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-21 06:25:42,843 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:42,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 65 proven. 59 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-21 06:25:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:44,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 169 states and 325 transitions. [2021-11-21 06:25:44,368 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 325 transitions. [2021-11-21 06:25:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-21 06:25:44,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:44,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 06:25:45,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 172 states and 329 transitions. [2021-11-21 06:25:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 329 transitions. [2021-11-21 06:25:45,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-21 06:25:45,247 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:45,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 71 proven. 4 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-21 06:25:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 175 states and 333 transitions. [2021-11-21 06:25:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 333 transitions. [2021-11-21 06:25:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-21 06:25:46,137 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:46,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:46,282 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 06:25:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 173 states and 328 transitions. [2021-11-21 06:25:46,527 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 328 transitions. [2021-11-21 06:25:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-21 06:25:46,528 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:46,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 06:25:47,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:47,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 174 states and 328 transitions. [2021-11-21 06:25:47,178 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 328 transitions. [2021-11-21 06:25:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 06:25:47,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:47,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:47,764 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 39 proven. 68 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-21 06:25:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:49,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 177 states and 334 transitions. [2021-11-21 06:25:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 334 transitions. [2021-11-21 06:25:49,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-21 06:25:49,238 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:49,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-21 06:25:50,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 181 states and 341 transitions. [2021-11-21 06:25:50,866 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 341 transitions. [2021-11-21 06:25:50,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 06:25:50,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:50,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 39 proven. 68 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-21 06:25:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 182 states and 341 transitions. [2021-11-21 06:25:51,844 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 341 transitions. [2021-11-21 06:25:51,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-21 06:25:51,846 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:51,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 74 proven. 52 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-21 06:25:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:25:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 202 states and 380 transitions. [2021-11-21 06:25:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 380 transitions. [2021-11-21 06:25:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-21 06:25:58,802 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:25:58,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:25:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:25:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 74 proven. 52 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-21 06:26:00,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:00,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 209 states and 391 transitions. [2021-11-21 06:26:00,768 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 391 transitions. [2021-11-21 06:26:00,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-21 06:26:00,769 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:00,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 74 proven. 52 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-21 06:26:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:01,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 210 states and 392 transitions. [2021-11-21 06:26:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 392 transitions. [2021-11-21 06:26:01,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-21 06:26:01,699 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:01,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 69 proven. 43 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-11-21 06:26:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 212 states and 402 transitions. [2021-11-21 06:26:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 402 transitions. [2021-11-21 06:26:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-21 06:26:03,115 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:03,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 86 proven. 84 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-21 06:26:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 219 states and 415 transitions. [2021-11-21 06:26:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 415 transitions. [2021-11-21 06:26:05,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-21 06:26:05,314 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:05,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 86 proven. 84 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-21 06:26:06,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 222 states and 420 transitions. [2021-11-21 06:26:06,341 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 420 transitions. [2021-11-21 06:26:06,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-21 06:26:06,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:06,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 145 proven. 32 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-21 06:26:10,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 233 states and 450 transitions. [2021-11-21 06:26:10,630 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 450 transitions. [2021-11-21 06:26:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-21 06:26:10,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:10,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 145 proven. 32 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-21 06:26:11,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:11,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 236 states and 453 transitions. [2021-11-21 06:26:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 453 transitions. [2021-11-21 06:26:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-21 06:26:11,967 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:11,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 93 proven. 100 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-11-21 06:26:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:14,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 240 states and 460 transitions. [2021-11-21 06:26:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 460 transitions. [2021-11-21 06:26:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-21 06:26:14,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:14,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 184 proven. 46 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-21 06:26:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 244 states and 467 transitions. [2021-11-21 06:26:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 467 transitions. [2021-11-21 06:26:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 06:26:15,557 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:15,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:16,540 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 61 proven. 92 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-11-21 06:26:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:18,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 247 states and 473 transitions. [2021-11-21 06:26:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 473 transitions. [2021-11-21 06:26:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-21 06:26:18,357 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:18,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 184 proven. 46 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-21 06:26:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 251 states and 479 transitions. [2021-11-21 06:26:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 479 transitions. [2021-11-21 06:26:20,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-21 06:26:20,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:20,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 136 proven. 22 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-11-21 06:26:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 254 states and 483 transitions. [2021-11-21 06:26:20,775 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 483 transitions. [2021-11-21 06:26:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-21 06:26:20,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:20,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 136 proven. 22 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-11-21 06:26:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 255 states and 484 transitions. [2021-11-21 06:26:21,284 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 484 transitions. [2021-11-21 06:26:21,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 06:26:21,286 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:21,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 61 proven. 92 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-11-21 06:26:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:22,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 256 states and 484 transitions. [2021-11-21 06:26:22,608 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 484 transitions. [2021-11-21 06:26:22,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-21 06:26:22,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:22,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 98 proven. 77 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-21 06:26:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:31,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 277 states and 525 transitions. [2021-11-21 06:26:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 525 transitions. [2021-11-21 06:26:31,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-21 06:26:31,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:31,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 98 proven. 77 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-21 06:26:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 286 states and 541 transitions. [2021-11-21 06:26:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 541 transitions. [2021-11-21 06:26:34,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-21 06:26:34,753 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:34,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:35,215 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 98 proven. 77 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-21 06:26:35,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:35,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 287 states and 542 transitions. [2021-11-21 06:26:35,854 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 542 transitions. [2021-11-21 06:26:35,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-21 06:26:35,855 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:26:35,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:26:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:26:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 167 proven. 11 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-11-21 06:26:36,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:26:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 236 states and 403 transitions. [2021-11-21 06:26:36,671 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 403 transitions. [2021-11-21 06:26:36,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 06:26:36,672 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 70 iterations. [2021-11-21 06:26:36,682 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-21 06:26:38,062 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 06:26:38,065 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 06:26:38,066 INFO L560 CodeCheckObserver]: Invariant with dag size 29 [2021-11-21 06:26:38,073 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 06:26:38,073 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-21 06:26:38,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:26:38 ImpRootNode [2021-11-21 06:26:38,074 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 06:26:38,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 06:26:38,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 06:26:38,077 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 06:26:38,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:00" (3/4) ... [2021-11-21 06:26:38,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 06:26:38,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-21 06:26:38,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-21 06:26:38,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-21 06:26:38,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 06:26:38,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 06:26:38,156 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 06:26:38,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 06:26:38,160 INFO L158 Benchmark]: Toolchain (without parser) took 98099.73ms. Allocated memory was 96.5MB in the beginning and 752.9MB in the end (delta: 656.4MB). Free memory was 65.2MB in the beginning and 560.9MB in the end (delta: -495.8MB). Peak memory consumption was 160.6MB. Max. memory is 16.1GB. [2021-11-21 06:26:38,161 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 56.2MB in the beginning and 56.2MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:26:38,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.31ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 65.0MB in the beginning and 92.6MB in the end (delta: -27.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 06:26:38,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.49ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 91.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 06:26:38,162 INFO L158 Benchmark]: Boogie Preprocessor took 24.66ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 90.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:26:38,162 INFO L158 Benchmark]: RCFGBuilder took 371.06ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 79.4MB in the end (delta: 10.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 06:26:38,163 INFO L158 Benchmark]: CodeCheck took 97265.99ms. Allocated memory was 117.4MB in the beginning and 752.9MB in the end (delta: 635.4MB). Free memory was 79.0MB in the beginning and 564.1MB in the end (delta: -485.1MB). Peak memory consumption was 490.8MB. Max. memory is 16.1GB. [2021-11-21 06:26:38,163 INFO L158 Benchmark]: Witness Printer took 82.34ms. Allocated memory is still 752.9MB. Free memory was 564.1MB in the beginning and 560.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 06:26:38,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 95.8s, OverallIterations: 70, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19801 SdHoareTripleChecker+Valid, 102.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11533 mSDsluCounter, 5321 SdHoareTripleChecker+Invalid, 85.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3829 mSDsCounter, 20436 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70258 IncrementalHoareTripleChecker+Invalid, 90694 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20436 mSolverCounterUnsat, 1492 mSDtfsCounter, 70258 mSolverCounterSat, 1.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39724 GetRequests, 37562 SyntacticMatches, 1352 SemanticMatches, 810 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455431 ImplicationChecksByTransitivity, 88.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 4543 NumberOfCodeBlocks, 4543 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 4474 ConstructedInterpolants, 0 QuantifiedInterpolants, 11360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 69 InterpolantComputations, 9 PerfectInterpolantSequences, 12451/14326 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((2 * i <= j && j < 2 * i + 1) || (!(i == 0) && k < j)) || (!(i == 0) && n <= j)) || 2 * i < k) || k < 2 * i) || (i == 0 && j < 2 * i)) || (i == 0 && i + n < k + 1)) || j + 1 < k - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 56.2MB in the beginning and 56.2MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.31ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 65.0MB in the beginning and 92.6MB in the end (delta: -27.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.49ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 91.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.66ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 90.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.06ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 79.4MB in the end (delta: 10.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 97265.99ms. Allocated memory was 117.4MB in the beginning and 752.9MB in the end (delta: 635.4MB). Free memory was 79.0MB in the beginning and 564.1MB in the end (delta: -485.1MB). Peak memory consumption was 490.8MB. Max. memory is 16.1GB. * Witness Printer took 82.34ms. Allocated memory is still 752.9MB. Free memory was 564.1MB in the beginning and 560.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-21 06:26:38,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4adb33bb-fba6-4781-a744-dda66332b39e/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE