./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 676276db79a43f24ac4768848febffe3dd303b6e2c16071dede4e51ae957576d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:55:12,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:55:12,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:55:12,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:55:12,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:55:12,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:55:12,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:55:12,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:55:12,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:55:12,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:55:12,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:55:12,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:55:12,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:55:12,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:55:12,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:55:12,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:55:12,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:55:12,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:55:12,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:55:12,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:55:12,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:55:12,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:55:12,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:55:12,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:55:12,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:55:12,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:55:12,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:55:12,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:55:12,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:55:12,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:55:12,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:55:12,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:55:12,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:55:12,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:55:12,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:55:12,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:55:12,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:55:12,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:55:12,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:55:12,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:55:12,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:55:12,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-28 08:55:13,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:55:13,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:55:13,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:55:13,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:55:13,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:55:13,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:55:13,016 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:55:13,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:55:13,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:55:13,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:55:13,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:55:13,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:55:13,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:55:13,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:55:13,017 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 08:55:13,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:55:13,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:55:13,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:55:13,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:55:13,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:55:13,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:55:13,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:55:13,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:55:13,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:55:13,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:55:13,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:55:13,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:55:13,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:55:13,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:55:13,021 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_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676276db79a43f24ac4768848febffe3dd303b6e2c16071dede4e51ae957576d [2021-10-28 08:55:13,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:55:13,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:55:13,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:55:13,369 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:55:13,371 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:55:13,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-28 08:55:13,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/data/333355010/c0a7c9d71e0f48d0b3137ca5554551b1/FLAGc6eae5431 [2021-10-28 08:55:14,010 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:55:14,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-28 08:55:14,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/data/333355010/c0a7c9d71e0f48d0b3137ca5554551b1/FLAGc6eae5431 [2021-10-28 08:55:14,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/data/333355010/c0a7c9d71e0f48d0b3137ca5554551b1 [2021-10-28 08:55:14,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:55:14,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:55:14,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:14,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:55:14,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:55:14,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d004a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14, skipping insertion in model container [2021-10-28 08:55:14,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:55:14,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:55:14,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:14,640 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:55:14,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:14,676 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:55:14,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14 WrapperNode [2021-10-28 08:55:14,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:14,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:55:14,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:55:14,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:55:14,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:55:14,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:55:14,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:55:14,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:55:14,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:55:14,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:55:14,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:55:14,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:55:14,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (1/1) ... [2021-10-28 08:55:14,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:55:14,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:55:14,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:55:14,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:55:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:55:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:55:15,432 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:55:15,433 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-28 08:55:15,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:15 BoogieIcfgContainer [2021-10-28 08:55:15,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:55:15,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:55:15,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:55:15,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:55:15,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:55:14" (1/3) ... [2021-10-28 08:55:15,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecec3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:55:15, skipping insertion in model container [2021-10-28 08:55:15,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:14" (2/3) ... [2021-10-28 08:55:15,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecec3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:55:15, skipping insertion in model container [2021-10-28 08:55:15,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:15" (3/3) ... [2021-10-28 08:55:15,469 INFO L111 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-28 08:55:15,476 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:55:15,484 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 08:55:15,562 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:55:15,569 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:55:15,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 08:55:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-28 08:55:15,605 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:15,606 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-28 08:55:15,607 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:15,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2021-10-28 08:55:15,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:15,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729420417] [2021-10-28 08:55:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:15,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:15,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:15,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729420417] [2021-10-28 08:55:15,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729420417] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:15,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:15,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 08:55:15,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911521037] [2021-10-28 08:55:15,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:15,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:15,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:15,820 INFO L87 Difference]: Start difference. First operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:15,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:15,900 INFO L93 Difference]: Finished difference Result 69 states and 103 transitions. [2021-10-28 08:55:15,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:15,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-28 08:55:15,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:15,918 INFO L225 Difference]: With dead ends: 69 [2021-10-28 08:55:15,918 INFO L226 Difference]: Without dead ends: 59 [2021-10-28 08:55:15,923 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:15,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-28 08:55:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-28 08:55:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.690909090909091) internal successors, (93), 58 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:15,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 93 transitions. [2021-10-28 08:55:15,972 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 93 transitions. Word has length 3 [2021-10-28 08:55:15,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:15,973 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 93 transitions. [2021-10-28 08:55:15,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:15,974 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 93 transitions. [2021-10-28 08:55:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 08:55:15,974 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:15,975 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 08:55:15,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:55:15,975 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2021-10-28 08:55:15,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:15,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724128075] [2021-10-28 08:55:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:15,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:16,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:16,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724128075] [2021-10-28 08:55:16,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724128075] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:16,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:16,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 08:55:16,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683675097] [2021-10-28 08:55:16,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:16,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:16,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:16,009 INFO L87 Difference]: Start difference. First operand 59 states and 93 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:16,054 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2021-10-28 08:55:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:16,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-28 08:55:16,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:16,058 INFO L225 Difference]: With dead ends: 113 [2021-10-28 08:55:16,058 INFO L226 Difference]: Without dead ends: 111 [2021-10-28 08:55:16,059 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:16,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-10-28 08:55:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2021-10-28 08:55:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 103 states have (on average 1.6796116504854368) internal successors, (173), 105 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2021-10-28 08:55:16,080 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 4 [2021-10-28 08:55:16,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:16,080 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2021-10-28 08:55:16,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,081 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2021-10-28 08:55:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:55:16,083 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:16,083 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:16,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:55:16,084 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:16,085 INFO L85 PathProgramCache]: Analyzing trace with hash 725490672, now seen corresponding path program 1 times [2021-10-28 08:55:16,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:16,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324177939] [2021-10-28 08:55:16,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:16,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:16,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:16,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324177939] [2021-10-28 08:55:16,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324177939] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:16,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:16,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 08:55:16,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136857182] [2021-10-28 08:55:16,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:16,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:16,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:16,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:16,186 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:16,228 INFO L93 Difference]: Finished difference Result 110 states and 178 transitions. [2021-10-28 08:55:16,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:16,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-28 08:55:16,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:16,231 INFO L225 Difference]: With dead ends: 110 [2021-10-28 08:55:16,231 INFO L226 Difference]: Without dead ends: 109 [2021-10-28 08:55:16,232 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-28 08:55:16,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2021-10-28 08:55:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 105 states have (on average 1.6666666666666667) internal successors, (175), 107 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 175 transitions. [2021-10-28 08:55:16,246 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 175 transitions. Word has length 14 [2021-10-28 08:55:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:16,247 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 175 transitions. [2021-10-28 08:55:16,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 175 transitions. [2021-10-28 08:55:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 08:55:16,249 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:16,249 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:16,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:55:16,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:16,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1015374612, now seen corresponding path program 1 times [2021-10-28 08:55:16,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:16,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841987736] [2021-10-28 08:55:16,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:16,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:16,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:16,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841987736] [2021-10-28 08:55:16,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841987736] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:16,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:16,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:55:16,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508275211] [2021-10-28 08:55:16,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:55:16,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:55:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:55:16,293 INFO L87 Difference]: Start difference. First operand 108 states and 175 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:16,354 INFO L93 Difference]: Finished difference Result 108 states and 175 transitions. [2021-10-28 08:55:16,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:55:16,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-28 08:55:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:16,356 INFO L225 Difference]: With dead ends: 108 [2021-10-28 08:55:16,357 INFO L226 Difference]: Without dead ends: 107 [2021-10-28 08:55:16,357 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:16,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-28 08:55:16,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-28 08:55:16,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 105 states have (on average 1.6571428571428573) internal successors, (174), 106 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 174 transitions. [2021-10-28 08:55:16,371 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 174 transitions. Word has length 15 [2021-10-28 08:55:16,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:16,372 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 174 transitions. [2021-10-28 08:55:16,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,372 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 174 transitions. [2021-10-28 08:55:16,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:55:16,374 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:16,375 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:16,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:55:16,377 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:16,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:16,378 INFO L85 PathProgramCache]: Analyzing trace with hash -145038970, now seen corresponding path program 1 times [2021-10-28 08:55:16,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:16,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872953663] [2021-10-28 08:55:16,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:16,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:16,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:16,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:16,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872953663] [2021-10-28 08:55:16,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872953663] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:16,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:16,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:55:16,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800877783] [2021-10-28 08:55:16,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:55:16,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:16,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:55:16,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:55:16,437 INFO L87 Difference]: Start difference. First operand 107 states and 174 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:16,478 INFO L93 Difference]: Finished difference Result 115 states and 182 transitions. [2021-10-28 08:55:16,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:55:16,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-28 08:55:16,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:16,481 INFO L225 Difference]: With dead ends: 115 [2021-10-28 08:55:16,486 INFO L226 Difference]: Without dead ends: 114 [2021-10-28 08:55:16,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:55:16,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-28 08:55:16,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2021-10-28 08:55:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.6601941747572815) internal successors, (171), 103 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2021-10-28 08:55:16,514 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 16 [2021-10-28 08:55:16,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:16,515 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2021-10-28 08:55:16,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,515 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2021-10-28 08:55:16,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:55:16,516 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:16,516 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:16,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:55:16,517 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:16,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:16,518 INFO L85 PathProgramCache]: Analyzing trace with hash -145032788, now seen corresponding path program 1 times [2021-10-28 08:55:16,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:16,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632321414] [2021-10-28 08:55:16,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:16,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:16,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:16,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632321414] [2021-10-28 08:55:16,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632321414] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:16,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:16,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:55:16,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655372035] [2021-10-28 08:55:16,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:55:16,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:55:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:55:16,612 INFO L87 Difference]: Start difference. First operand 104 states and 171 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:16,679 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2021-10-28 08:55:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:55:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-28 08:55:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:16,684 INFO L225 Difference]: With dead ends: 110 [2021-10-28 08:55:16,684 INFO L226 Difference]: Without dead ends: 109 [2021-10-28 08:55:16,686 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:55:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-28 08:55:16,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2021-10-28 08:55:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 105 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2021-10-28 08:55:16,715 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 16 [2021-10-28 08:55:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:16,716 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2021-10-28 08:55:16,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2021-10-28 08:55:16,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:55:16,718 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:16,718 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:16,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:55:16,719 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:16,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:16,720 INFO L85 PathProgramCache]: Analyzing trace with hash 817434134, now seen corresponding path program 1 times [2021-10-28 08:55:16,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:16,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260912172] [2021-10-28 08:55:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:16,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:16,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:16,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260912172] [2021-10-28 08:55:16,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260912172] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:55:16,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228048275] [2021-10-28 08:55:16,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:16,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:55:16,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:55:16,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:55:16,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:55:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:16,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:55:16,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:55:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:17,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228048275] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:17,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:55:17,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2021-10-28 08:55:17,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863645632] [2021-10-28 08:55:17,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:55:17,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:17,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:55:17,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:55:17,153 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:17,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:17,190 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2021-10-28 08:55:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:55:17,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-28 08:55:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:17,192 INFO L225 Difference]: With dead ends: 113 [2021-10-28 08:55:17,192 INFO L226 Difference]: Without dead ends: 106 [2021-10-28 08:55:17,193 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:55:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-28 08:55:17,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-28 08:55:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.638095238095238) internal successors, (172), 105 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions. [2021-10-28 08:55:17,214 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 17 [2021-10-28 08:55:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:17,214 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 172 transitions. [2021-10-28 08:55:17,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:55:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions. [2021-10-28 08:55:17,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:55:17,222 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:17,223 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:17,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:55:17,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 08:55:17,449 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:55:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1943488504, now seen corresponding path program 1 times [2021-10-28 08:55:17,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:17,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973461176] [2021-10-28 08:55:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:17,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:55:17,462 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:55:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:55:17,512 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:55:17,513 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:55:17,514 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:55:17,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:55:17,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:55:17,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:55:17,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:55:17,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:55:17,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:55:17,524 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:17,528 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:55:17,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:55:17 BoogieIcfgContainer [2021-10-28 08:55:17,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:55:17,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:55:17,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:55:17,556 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:55:17,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:15" (3/4) ... [2021-10-28 08:55:17,558 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:55:17,614 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:55:17,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:55:17,616 INFO L168 Benchmark]: Toolchain (without parser) took 3223.93 ms. Allocated memory was 75.5 MB in the beginning and 113.2 MB in the end (delta: 37.7 MB). Free memory was 39.1 MB in the beginning and 60.1 MB in the end (delta: -21.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:17,616 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:55:17,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.84 ms. Allocated memory was 75.5 MB in the beginning and 113.2 MB in the end (delta: 37.7 MB). Free memory was 38.9 MB in the beginning and 89.9 MB in the end (delta: -51.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:17,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 87.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:17,618 INFO L168 Benchmark]: Boogie Preprocessor took 34.34 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:17,619 INFO L168 Benchmark]: RCFGBuilder took 670.43 ms. Allocated memory is still 113.2 MB. Free memory was 86.5 MB in the beginning and 72.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:17,619 INFO L168 Benchmark]: TraceAbstraction took 2108.99 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 61.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:17,620 INFO L168 Benchmark]: Witness Printer took 58.82 ms. Allocated memory is still 113.2 MB. Free memory was 61.6 MB in the beginning and 60.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:17,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.84 ms. Allocated memory was 75.5 MB in the beginning and 113.2 MB in the end (delta: 37.7 MB). Free memory was 38.9 MB in the beginning and 89.9 MB in the end (delta: -51.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 87.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.34 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 670.43 ms. Allocated memory is still 113.2 MB. Free memory was 86.5 MB in the beginning and 72.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2108.99 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 61.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 58.82 ms. Allocated memory is still 113.2 MB. Free memory was 61.6 MB in the beginning and 60.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 [L80] COND TRUE x > 0 [L81] x - d - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 587 SDtfs, 719 SDslu, 560 SDs, 0 SdLazy, 115 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:55:17,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca03373e-84d5-41eb-bc5e-4711e1dee4b3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...