./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86018b7f3e582b94d83913c12d8eaea893434e1e96da49ea035805521496eb67 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:22:36,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:22:36,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:22:36,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:22:36,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:22:36,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:22:36,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:22:36,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:22:36,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:22:36,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:22:36,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:22:36,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:22:36,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:22:36,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:22:36,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:22:36,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:22:36,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:22:36,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:22:36,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:22:36,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:22:36,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:22:36,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:22:36,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:22:36,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:22:36,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:22:36,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:22:36,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:22:36,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:22:36,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:22:37,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:22:37,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:22:37,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:22:37,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:22:37,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:22:37,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:22:37,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:22:37,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:22:37,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:22:37,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:22:37,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:22:37,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:22:37,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:22:37,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:22:37,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:22:37,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:22:37,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:22:37,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:22:37,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:22:37,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:22:37,039 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:22:37,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:22:37,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:22:37,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:22:37,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:22:37,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:22:37,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:22:37,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:22:37,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:22:37,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:22:37,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:22:37,046 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:22:37,046 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:22:37,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:22:37,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:22:37,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:22:37,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:22:37,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:22:37,047 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:22:37,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:22:37,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:22:37,048 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_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86018b7f3e582b94d83913c12d8eaea893434e1e96da49ea035805521496eb67 [2021-11-23 01:22:37,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:22:37,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:22:37,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:22:37,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:22:37,373 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:22:37,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound100.c [2021-11-23 01:22:37,462 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/data/c621061f4/92b634f06cee49cba73e097385e15b13/FLAGaf27e4c6f [2021-11-23 01:22:37,966 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:22:37,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound100.c [2021-11-23 01:22:37,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/data/c621061f4/92b634f06cee49cba73e097385e15b13/FLAGaf27e4c6f [2021-11-23 01:22:38,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/data/c621061f4/92b634f06cee49cba73e097385e15b13 [2021-11-23 01:22:38,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:22:38,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:22:38,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:22:38,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:22:38,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:22:38,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d738c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38, skipping insertion in model container [2021-11-23 01:22:38,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:22:38,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:22:38,522 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_014a1d81-e62e-401f-96cc-70657065f30e/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound100.c[597,610] [2021-11-23 01:22:38,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:22:38,553 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:22:38,566 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_014a1d81-e62e-401f-96cc-70657065f30e/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound100.c[597,610] [2021-11-23 01:22:38,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:22:38,589 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:22:38,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38 WrapperNode [2021-11-23 01:22:38,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:22:38,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:22:38,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:22:38,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:22:38,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,627 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-23 01:22:38,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:22:38,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:22:38,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:22:38,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:22:38,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:22:38,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:22:38,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:22:38,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:22:38,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:22:38,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:22:38,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:22:38,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014a1d81-e62e-401f-96cc-70657065f30e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:22:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:22:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:22:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:22:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:22:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:22:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:22:38,805 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:22:38,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:22:38,940 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:22:38,967 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:22:38,967 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:22:38,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:22:38 BoogieIcfgContainer [2021-11-23 01:22:38,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:22:38,971 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:22:38,971 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:22:38,983 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:22:38,983 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:22:38" (1/1) ... [2021-11-23 01:22:38,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:22:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:39,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-23 01:22:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-23 01:22:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:22:39,056 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:39,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:39,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:22:39,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:39,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:39,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-23 01:22:39,570 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 01:22:39,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:22:39,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:39,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 01:22:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 01:22:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:22:40,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:40,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:40,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:22:40,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:40,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2021-11-23 01:22:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 01:22:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:22:40,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:40,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:40,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 01:22:40,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:40,963 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:22:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-11-23 01:22:42,348 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-11-23 01:22:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:22:42,349 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:42,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:42,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:22:42,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 74 transitions. [2021-11-23 01:22:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2021-11-23 01:22:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:22:44,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:44,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:44,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:22:44,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:22:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 43 states and 98 transitions. [2021-11-23 01:22:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 98 transitions. [2021-11-23 01:22:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:22:47,254 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:47,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:47,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:22:47,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:22:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 44 states and 100 transitions. [2021-11-23 01:22:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 100 transitions. [2021-11-23 01:22:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:22:48,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:48,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:48,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:22:48,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:49,292 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:22:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:22:53,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 47 states and 113 transitions. [2021-11-23 01:22:53,521 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 113 transitions. [2021-11-23 01:22:53,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:22:53,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:53,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:53,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:22:53,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:57,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 51 states and 127 transitions. [2021-11-23 01:22:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 127 transitions. [2021-11-23 01:22:57,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:22:57,657 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:57,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:57,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:22:57,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:57,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:22:59,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 56 states and 152 transitions. [2021-11-23 01:22:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 152 transitions. [2021-11-23 01:22:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:22:59,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:59,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:59,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:22:59,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:23:04,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 60 states and 179 transitions. [2021-11-23 01:23:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 179 transitions. [2021-11-23 01:23:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:23:04,796 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:04,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:04,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:23:04,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:23:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:07,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 60 states and 170 transitions. [2021-11-23 01:23:07,945 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 170 transitions. [2021-11-23 01:23:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:23:07,947 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:07,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:08,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:23:08,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:10,189 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:23:12,182 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:23:36,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 74 states and 230 transitions. [2021-11-23 01:23:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 230 transitions. [2021-11-23 01:23:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:23:36,380 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:36,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:36,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:23:36,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:38,964 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:23:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:23:45,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:45,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 75 states and 234 transitions. [2021-11-23 01:23:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 234 transitions. [2021-11-23 01:23:45,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:23:45,398 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:45,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:45,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:23:45,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:46,306 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 79 states and 248 transitions. [2021-11-23 01:23:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 248 transitions. [2021-11-23 01:23:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:23:53,637 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:53,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:53,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:23:53,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 84 states and 286 transitions. [2021-11-23 01:23:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 286 transitions. [2021-11-23 01:23:59,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:23:59,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:59,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:59,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:23:59,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:24:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 88 states and 321 transitions. [2021-11-23 01:24:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 321 transitions. [2021-11-23 01:24:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:24:19,216 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:19,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:19,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:24:19,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:24:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:24:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 88 states and 305 transitions. [2021-11-23 01:24:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 305 transitions. [2021-11-23 01:24:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:24:29,893 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:24:29,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:24:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:24:30,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 01:24:30,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:24:37,869 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:24:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:25:05,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:25:23,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:25:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:25:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 92 states and 345 transitions. [2021-11-23 01:25:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 345 transitions. [2021-11-23 01:25:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:25:23,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:25:23,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:25:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:25:23,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:25:23,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:25:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:25:51,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:25:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 96 states and 359 transitions. [2021-11-23 01:25:51,233 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 359 transitions. [2021-11-23 01:25:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:25:51,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:25:51,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:25:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:25:51,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:25:51,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:25:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:26:02,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:26:02,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 101 states and 408 transitions. [2021-11-23 01:26:02,778 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 408 transitions. [2021-11-23 01:26:02,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:26:02,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:26:02,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:26:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:26:02,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:26:02,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:26:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:26:51,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:26:51,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 105 states and 450 transitions. [2021-11-23 01:26:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 450 transitions. [2021-11-23 01:26:51,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:26:51,735 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:26:51,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:26:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:26:51,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:26:51,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:26:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:27:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:08,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 105 states and 425 transitions. [2021-11-23 01:27:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 425 transitions. [2021-11-23 01:27:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:27:08,091 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:08,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:08,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 01:27:08,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:27:17,363 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:27:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:27:59,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 108 states and 478 transitions. [2021-11-23 01:27:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 478 transitions. [2021-11-23 01:27:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:27:59,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:59,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:59,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:27:59,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:28:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:28:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:28:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 112 states and 492 transitions. [2021-11-23 01:28:46,599 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 492 transitions. [2021-11-23 01:28:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:28:46,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:28:46,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:28:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:28:46,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:28:46,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:28:46,729 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:29:09,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:29:09,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 117 states and 552 transitions. [2021-11-23 01:29:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 552 transitions. [2021-11-23 01:29:09,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:29:09,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:29:09,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:29:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:29:09,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 01:29:09,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:29:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:30:26,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 121 states and 600 transitions. [2021-11-23 01:30:26,694 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 600 transitions. [2021-11-23 01:30:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:30:26,696 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:26,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:30:26,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 01:30:26,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:30:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:31:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:31:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 121 states and 549 transitions. [2021-11-23 01:31:01,917 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 549 transitions. [2021-11-23 01:31:01,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 01:31:01,919 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:31:01,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:31:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:31:02,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 01:31:02,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:31:36,401 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:31:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:33:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:33:41,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 126 states and 622 transitions. [2021-11-23 01:33:41,532 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 622 transitions. [2021-11-23 01:33:41,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:33:41,534 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:33:41,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:33:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:33:41,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:33:41,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:33:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:35:15,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 134 states and 704 transitions. [2021-11-23 01:35:15,669 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 704 transitions. [2021-11-23 01:35:15,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:35:15,671 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:15,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:15,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:35:15,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:35:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:35:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 135 states and 705 transitions. [2021-11-23 01:35:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 705 transitions. [2021-11-23 01:35:26,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:35:26,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:26,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:26,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 01:35:26,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:36:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 31 proven. 85 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.