./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a --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 32bit --witnessprinter.graph.data.programhash f3d22aeda2fb15b9dd79854281ee0f5e475c0f7ee1551b76594f45703ddc81df --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:12:00,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:12:00,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:12:00,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:12:00,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:12:00,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:12:00,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:12:00,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:12:00,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:12:00,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:12:00,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:12:00,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:12:00,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:12:00,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:12:00,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:12:00,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:12:00,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:12:00,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:12:00,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:12:00,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:12:00,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:12:00,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:12:00,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:12:00,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:12:00,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:12:00,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:12:00,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:12:00,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:12:00,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:12:00,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:12:00,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:12:00,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:12:00,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:12:00,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:12:00,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:12:00,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:12:00,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:12:00,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:12:00,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:12:00,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:12:00,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:12:00,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 09:12:00,762 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:12:00,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:12:00,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:12:00,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:12:00,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:12:00,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:12:00,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:12:00,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:12:00,765 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:12:00,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:12:00,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:12:00,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:12:00,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:12:00,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:12:00,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:12:00,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:12:00,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:12:00,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:12:00,769 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 09:12:00,769 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:12:00,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:12:00,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:12:00,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:12:00,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:12:00,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:12:00,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:12:00,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:12:00,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:12:00,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:12:00,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:12:00,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:12:00,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:12:00,772 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:12:00,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:12:00,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:12:00,773 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_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3d22aeda2fb15b9dd79854281ee0f5e475c0f7ee1551b76594f45703ddc81df [2022-11-21 09:12:01,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:12:01,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:12:01,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:12:01,138 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:12:01,139 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:12:01,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c [2022-11-21 09:12:04,137 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:12:04,319 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:12:04,320 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c [2022-11-21 09:12:04,326 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/data/f53235ddd/1e568a8cfb234796a0234c73009ae086/FLAGa4f05efbf [2022-11-21 09:12:04,343 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/data/f53235ddd/1e568a8cfb234796a0234c73009ae086 [2022-11-21 09:12:04,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:12:04,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:12:04,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:12:04,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:12:04,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:12:04,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445a210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04, skipping insertion in model container [2022-11-21 09:12:04,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:12:04,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:12:04,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:12:04,610 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:12:04,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:12:04,656 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:12:04,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04 WrapperNode [2022-11-21 09:12:04,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:12:04,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:12:04,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:12:04,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:12:04,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,698 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-11-21 09:12:04,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:12:04,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:12:04,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:12:04,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:12:04,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:12:04,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:12:04,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:12:04,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:12:04,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (1/1) ... [2022-11-21 09:12:04,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:12:04,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:04,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:12:04,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:12:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:12:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:12:04,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:12:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:12:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:12:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:12:04,911 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:12:04,913 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:12:05,138 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:12:05,145 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:12:05,145 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 09:12:05,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:05 BoogieIcfgContainer [2022-11-21 09:12:05,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:12:05,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:12:05,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:12:05,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:12:05,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:12:04" (1/3) ... [2022-11-21 09:12:05,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c315353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:12:05, skipping insertion in model container [2022-11-21 09:12:05,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:04" (2/3) ... [2022-11-21 09:12:05,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c315353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:12:05, skipping insertion in model container [2022-11-21 09:12:05,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:05" (3/3) ... [2022-11-21 09:12:05,171 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4.c [2022-11-21 09:12:05,190 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:12:05,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 09:12:05,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:12:05,293 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b1157bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:12:05,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 09:12:05,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 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) [2022-11-21 09:12:05,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 09:12:05,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:05,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 09:12:05,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:05,311 INFO L85 PathProgramCache]: Analyzing trace with hash 889666572, now seen corresponding path program 1 times [2022-11-21 09:12:05,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:05,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730346927] [2022-11-21 09:12:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:05,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:05,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730346927] [2022-11-21 09:12:05,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730346927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:05,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:05,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:05,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411429509] [2022-11-21 09:12:05,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:05,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:12:05,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:12:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:12:05,660 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-21 09:12:05,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:05,768 INFO L93 Difference]: Finished difference Result 81 states and 101 transitions. [2022-11-21 09:12:05,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:12:05,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-11-21 09:12:05,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:05,779 INFO L225 Difference]: With dead ends: 81 [2022-11-21 09:12:05,779 INFO L226 Difference]: Without dead ends: 44 [2022-11-21 09:12:05,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:05,786 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:05,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 106 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:12:05,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-21 09:12:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2022-11-21 09:12:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 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) [2022-11-21 09:12:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-21 09:12:05,821 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 6 [2022-11-21 09:12:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:05,821 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-21 09:12:05,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-21 09:12:05,822 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-21 09:12:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 09:12:05,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:05,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:05,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:12:05,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:05,824 INFO L85 PathProgramCache]: Analyzing trace with hash 235011595, now seen corresponding path program 1 times [2022-11-21 09:12:05,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:05,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581120537] [2022-11-21 09:12:05,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:05,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:05,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:05,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:05,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581120537] [2022-11-21 09:12:05,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581120537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:05,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:05,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:05,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770940121] [2022-11-21 09:12:05,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:05,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:12:05,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:05,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:12:05,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:12:05,914 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-21 09:12:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:05,969 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-11-21 09:12:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:12:05,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-21 09:12:05,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:05,971 INFO L225 Difference]: With dead ends: 59 [2022-11-21 09:12:05,971 INFO L226 Difference]: Without dead ends: 51 [2022-11-21 09:12:05,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:05,973 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:05,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 51 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:05,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-21 09:12:05,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2022-11-21 09:12:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 33 states have internal predecessors, (37), 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) [2022-11-21 09:12:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-21 09:12:05,981 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 8 [2022-11-21 09:12:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:05,981 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-21 09:12:05,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-21 09:12:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-21 09:12:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 09:12:05,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:05,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:05,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:12:05,983 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:05,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:05,984 INFO L85 PathProgramCache]: Analyzing trace with hash 269484748, now seen corresponding path program 1 times [2022-11-21 09:12:05,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:05,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47772616] [2022-11-21 09:12:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:06,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:06,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47772616] [2022-11-21 09:12:06,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47772616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:06,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:06,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:06,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848613315] [2022-11-21 09:12:06,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:06,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:06,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:06,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:06,120 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 09:12:06,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:06,137 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-11-21 09:12:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:06,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-21 09:12:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:06,139 INFO L225 Difference]: With dead ends: 65 [2022-11-21 09:12:06,139 INFO L226 Difference]: Without dead ends: 34 [2022-11-21 09:12:06,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:06,141 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:06,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 44 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:06,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-21 09:12:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-21 09:12:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 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) [2022-11-21 09:12:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-21 09:12:06,148 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 8 [2022-11-21 09:12:06,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:06,149 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-21 09:12:06,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-21 09:12:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-21 09:12:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 09:12:06,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:06,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:06,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:12:06,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:06,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:06,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1479828344, now seen corresponding path program 1 times [2022-11-21 09:12:06,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:06,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046620157] [2022-11-21 09:12:06,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:06,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:06,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046620157] [2022-11-21 09:12:06,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046620157] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:06,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486957656] [2022-11-21 09:12:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:06,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:06,305 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:06,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 09:12:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:06,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 09:12:06,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:06,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:06,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:06,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486957656] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:06,596 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:06,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 09:12:06,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084330205] [2022-11-21 09:12:06,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:06,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:12:06,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:06,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:12:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:12:06,599 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 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) [2022-11-21 09:12:06,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:06,843 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2022-11-21 09:12:06,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 09:12:06,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 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 10 [2022-11-21 09:12:06,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:06,853 INFO L225 Difference]: With dead ends: 113 [2022-11-21 09:12:06,854 INFO L226 Difference]: Without dead ends: 112 [2022-11-21 09:12:06,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-21 09:12:06,859 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 88 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:06,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 139 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:12:06,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-21 09:12:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 45. [2022-11-21 09:12:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 44 states have internal predecessors, (52), 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) [2022-11-21 09:12:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2022-11-21 09:12:06,878 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 10 [2022-11-21 09:12:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:06,879 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2022-11-21 09:12:06,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 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) [2022-11-21 09:12:06,880 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2022-11-21 09:12:06,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 09:12:06,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:06,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 09:12:06,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:07,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:07,088 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:07,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:07,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1369961646, now seen corresponding path program 1 times [2022-11-21 09:12:07,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:07,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076647694] [2022-11-21 09:12:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:07,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:07,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:07,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076647694] [2022-11-21 09:12:07,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076647694] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:07,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7340142] [2022-11-21 09:12:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:07,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:07,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:07,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:07,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 09:12:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 09:12:07,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:07,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:07,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7340142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:07,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:07,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 09:12:07,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957214335] [2022-11-21 09:12:07,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:07,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:12:07,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:12:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:12:07,378 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-11-21 09:12:07,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:07,440 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-11-21 09:12:07,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:12:07,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-11-21 09:12:07,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:07,444 INFO L225 Difference]: With dead ends: 45 [2022-11-21 09:12:07,444 INFO L226 Difference]: Without dead ends: 44 [2022-11-21 09:12:07,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:12:07,447 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:07,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 55 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-21 09:12:07,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-21 09:12:07,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 43 states have internal predecessors, (49), 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) [2022-11-21 09:12:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-21 09:12:07,463 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 11 [2022-11-21 09:12:07,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:07,464 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-21 09:12:07,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-11-21 09:12:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-21 09:12:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 09:12:07,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:07,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:07,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:07,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:07,666 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:07,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:07,667 INFO L85 PathProgramCache]: Analyzing trace with hash -482462648, now seen corresponding path program 1 times [2022-11-21 09:12:07,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:07,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647890338] [2022-11-21 09:12:07,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:07,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 09:12:07,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:07,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647890338] [2022-11-21 09:12:07,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647890338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:07,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:07,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:07,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700163420] [2022-11-21 09:12:07,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:07,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:12:07,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:07,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:12:07,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:12:07,792 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-21 09:12:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:07,845 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-21 09:12:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:12:07,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-11-21 09:12:07,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:07,846 INFO L225 Difference]: With dead ends: 71 [2022-11-21 09:12:07,847 INFO L226 Difference]: Without dead ends: 69 [2022-11-21 09:12:07,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:07,848 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:07,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 48 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-21 09:12:07,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2022-11-21 09:12:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 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) [2022-11-21 09:12:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-11-21 09:12:07,858 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 12 [2022-11-21 09:12:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:07,858 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-11-21 09:12:07,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-21 09:12:07,859 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-11-21 09:12:07,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 09:12:07,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:07,860 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-11-21 09:12:07,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:12:07,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:07,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:07,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1751714300, now seen corresponding path program 2 times [2022-11-21 09:12:07,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:07,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493293510] [2022-11-21 09:12:07,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:07,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:08,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:08,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493293510] [2022-11-21 09:12:08,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493293510] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:08,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941685241] [2022-11-21 09:12:08,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:12:08,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:08,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:08,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:08,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 09:12:08,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 09:12:08,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:12:08,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 09:12:08,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 09:12:08,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 09:12:08,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941685241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:08,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:08,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-11-21 09:12:08,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474087063] [2022-11-21 09:12:08,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:08,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 09:12:08,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:08,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 09:12:08,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-11-21 09:12:08,330 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 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) [2022-11-21 09:12:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:08,672 INFO L93 Difference]: Finished difference Result 210 states and 231 transitions. [2022-11-21 09:12:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 09:12:08,672 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 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 22 [2022-11-21 09:12:08,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:08,674 INFO L225 Difference]: With dead ends: 210 [2022-11-21 09:12:08,674 INFO L226 Difference]: Without dead ends: 209 [2022-11-21 09:12:08,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-11-21 09:12:08,676 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 299 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:08,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 172 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:12:08,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-21 09:12:08,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 39. [2022-11-21 09:12:08,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2) internal successors, (42), 38 states have internal predecessors, (42), 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) [2022-11-21 09:12:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-11-21 09:12:08,705 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 22 [2022-11-21 09:12:08,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:08,706 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-11-21 09:12:08,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 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) [2022-11-21 09:12:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-11-21 09:12:08,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 09:12:08,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:08,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 09:12:08,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 09:12:08,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-21 09:12:08,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:08,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122176, now seen corresponding path program 1 times [2022-11-21 09:12:08,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:08,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044737775] [2022-11-21 09:12:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:08,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 09:12:09,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:09,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044737775] [2022-11-21 09:12:09,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044737775] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:09,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343549136] [2022-11-21 09:12:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:09,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:09,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:09,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:09,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 09:12:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:09,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 09:12:09,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:09,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:09,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343549136] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:09,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:09,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-21 09:12:09,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730786391] [2022-11-21 09:12:09,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:09,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:12:09,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:09,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:12:09,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:12:09,272 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-11-21 09:12:09,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:09,540 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2022-11-21 09:12:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 09:12:09,540 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 23 [2022-11-21 09:12:09,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:09,541 INFO L225 Difference]: With dead ends: 107 [2022-11-21 09:12:09,541 INFO L226 Difference]: Without dead ends: 76 [2022-11-21 09:12:09,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2022-11-21 09:12:09,545 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 82 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:09,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 52 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:12:09,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-21 09:12:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2022-11-21 09:12:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 72 states have internal predecessors, (78), 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) [2022-11-21 09:12:09,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2022-11-21 09:12:09,560 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 23 [2022-11-21 09:12:09,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:09,561 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2022-11-21 09:12:09,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-11-21 09:12:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2022-11-21 09:12:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-21 09:12:09,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:09,562 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:09,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-21 09:12:09,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-21 09:12:09,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash -363414695, now seen corresponding path program 1 times [2022-11-21 09:12:09,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:09,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917265308] [2022-11-21 09:12:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-21 09:12:09,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:09,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917265308] [2022-11-21 09:12:09,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917265308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:09,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236177586] [2022-11-21 09:12:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:09,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:09,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:09,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:09,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 09:12:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:09,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 09:12:09,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 09:12:10,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:10,280 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 09:12:10,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236177586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:10,280 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:10,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-11-21 09:12:10,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942766669] [2022-11-21 09:12:10,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:10,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 09:12:10,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:10,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 09:12:10,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-11-21 09:12:10,284 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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) [2022-11-21 09:12:10,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:10,768 INFO L93 Difference]: Finished difference Result 184 states and 206 transitions. [2022-11-21 09:12:10,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-21 09:12:10,768 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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 32 [2022-11-21 09:12:10,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:10,769 INFO L225 Difference]: With dead ends: 184 [2022-11-21 09:12:10,769 INFO L226 Difference]: Without dead ends: 127 [2022-11-21 09:12:10,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=392, Invalid=1248, Unknown=0, NotChecked=0, Total=1640 [2022-11-21 09:12:10,771 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 134 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:10,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 106 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:12:10,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-21 09:12:10,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-11-21 09:12:10,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 121 states have (on average 1.0743801652892562) internal successors, (130), 124 states have internal predecessors, (130), 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) [2022-11-21 09:12:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2022-11-21 09:12:10,786 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 32 [2022-11-21 09:12:10,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:10,787 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2022-11-21 09:12:10,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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) [2022-11-21 09:12:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2022-11-21 09:12:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-21 09:12:10,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:10,788 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:10,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:10,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:10,995 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:10,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:10,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1063103538, now seen corresponding path program 1 times [2022-11-21 09:12:11,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:11,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973270951] [2022-11-21 09:12:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:11,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:11,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:11,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973270951] [2022-11-21 09:12:11,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973270951] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:11,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108845785] [2022-11-21 09:12:11,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:11,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:11,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:11,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:11,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 09:12:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:11,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-21 09:12:11,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:12,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:12,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108845785] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:12,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:12,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 47 [2022-11-21 09:12:12,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777655722] [2022-11-21 09:12:12,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:12,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-21 09:12:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-21 09:12:12,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=1634, Unknown=0, NotChecked=0, Total=2162 [2022-11-21 09:12:12,578 INFO L87 Difference]: Start difference. First operand 125 states and 130 transitions. Second operand has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 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) [2022-11-21 09:12:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:13,043 INFO L93 Difference]: Finished difference Result 314 states and 347 transitions. [2022-11-21 09:12:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 09:12:13,043 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 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 49 [2022-11-21 09:12:13,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:13,046 INFO L225 Difference]: With dead ends: 314 [2022-11-21 09:12:13,046 INFO L226 Difference]: Without dead ends: 221 [2022-11-21 09:12:13,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=943, Invalid=2717, Unknown=0, NotChecked=0, Total=3660 [2022-11-21 09:12:13,051 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 107 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:13,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:12:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-11-21 09:12:13,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-11-21 09:12:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 217 states have (on average 1.0414746543778801) internal successors, (226), 220 states have internal predecessors, (226), 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) [2022-11-21 09:12:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 226 transitions. [2022-11-21 09:12:13,090 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 226 transitions. Word has length 49 [2022-11-21 09:12:13,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:13,090 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 226 transitions. [2022-11-21 09:12:13,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 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) [2022-11-21 09:12:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 226 transitions. [2022-11-21 09:12:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-21 09:12:13,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:13,096 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:13,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:13,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:13,303 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:13,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:13,303 INFO L85 PathProgramCache]: Analyzing trace with hash -792116142, now seen corresponding path program 2 times [2022-11-21 09:12:13,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:13,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359975276] [2022-11-21 09:12:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:13,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:14,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:14,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359975276] [2022-11-21 09:12:14,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359975276] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:14,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307412776] [2022-11-21 09:12:14,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:12:14,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:14,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:14,564 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:14,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 09:12:14,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:12:14,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:12:14,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-21 09:12:14,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:16,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:18,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307412776] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:18,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:18,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 95 [2022-11-21 09:12:18,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851903926] [2022-11-21 09:12:18,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:18,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-21 09:12:18,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:18,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-21 09:12:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=6850, Unknown=0, NotChecked=0, Total=8930 [2022-11-21 09:12:18,075 INFO L87 Difference]: Start difference. First operand 221 states and 226 transitions. Second operand has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 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) [2022-11-21 09:12:19,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:19,640 INFO L93 Difference]: Finished difference Result 570 states and 627 transitions. [2022-11-21 09:12:19,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-21 09:12:19,641 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 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 81 [2022-11-21 09:12:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:19,644 INFO L225 Difference]: With dead ends: 570 [2022-11-21 09:12:19,644 INFO L226 Difference]: Without dead ends: 413 [2022-11-21 09:12:19,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3807, Invalid=11693, Unknown=0, NotChecked=0, Total=15500 [2022-11-21 09:12:19,650 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 297 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:19,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 144 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-11-21 09:12:19,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-11-21 09:12:19,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 409 states have (on average 1.02200488997555) internal successors, (418), 412 states have internal predecessors, (418), 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) [2022-11-21 09:12:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 418 transitions. [2022-11-21 09:12:19,687 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 418 transitions. Word has length 81 [2022-11-21 09:12:19,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:19,689 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 418 transitions. [2022-11-21 09:12:19,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 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) [2022-11-21 09:12:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 418 transitions. [2022-11-21 09:12:19,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-21 09:12:19,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:19,699 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:19,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:19,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 09:12:19,905 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:19,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:19,906 INFO L85 PathProgramCache]: Analyzing trace with hash -379128686, now seen corresponding path program 3 times [2022-11-21 09:12:19,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:19,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813275883] [2022-11-21 09:12:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:12:23,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:23,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813275883] [2022-11-21 09:12:23,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813275883] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:23,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12411615] [2022-11-21 09:12:23,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 09:12:23,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:23,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:23,643 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:23,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 09:12:23,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-21 09:12:23,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:12:23,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 09:12:23,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1892 trivial. 0 not checked. [2022-11-21 09:12:23,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:23,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12411615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:23,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:23,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [65] total 67 [2022-11-21 09:12:23,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962632832] [2022-11-21 09:12:23,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:23,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:12:23,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:23,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:12:23,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3330, Unknown=0, NotChecked=0, Total=4422 [2022-11-21 09:12:23,848 INFO L87 Difference]: Start difference. First operand 413 states and 418 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-21 09:12:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:23,934 INFO L93 Difference]: Finished difference Result 413 states and 418 transitions. [2022-11-21 09:12:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:12:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 145 [2022-11-21 09:12:23,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:23,938 INFO L225 Difference]: With dead ends: 413 [2022-11-21 09:12:23,938 INFO L226 Difference]: Without dead ends: 412 [2022-11-21 09:12:23,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1096, Invalid=3460, Unknown=0, NotChecked=0, Total=4556 [2022-11-21 09:12:23,940 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:23,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 28 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:23,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-21 09:12:23,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2022-11-21 09:12:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 409 states have (on average 1.019559902200489) internal successors, (417), 411 states have internal predecessors, (417), 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) [2022-11-21 09:12:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 417 transitions. [2022-11-21 09:12:23,979 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 417 transitions. Word has length 145 [2022-11-21 09:12:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:23,980 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 417 transitions. [2022-11-21 09:12:23,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-21 09:12:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 417 transitions. [2022-11-21 09:12:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-21 09:12:23,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:23,981 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:23,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:24,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-21 09:12:24,182 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:24,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:24,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1023089275, now seen corresponding path program 2 times [2022-11-21 09:12:24,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:24,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089562410] [2022-11-21 09:12:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 09:12:27,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:27,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089562410] [2022-11-21 09:12:27,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089562410] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:27,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909282564] [2022-11-21 09:12:27,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:12:27,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:27,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:27,524 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:27,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 09:12:27,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:12:27,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:12:27,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-21 09:12:27,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:32,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 09:12:32,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 09:12:37,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909282564] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:37,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:37,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2022-11-21 09:12:37,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902705142] [2022-11-21 09:12:37,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:37,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-11-21 09:12:37,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:38,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-11-21 09:12:38,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6334, Invalid=29956, Unknown=0, NotChecked=0, Total=36290 [2022-11-21 09:12:38,035 INFO L87 Difference]: Start difference. First operand 412 states and 417 transitions. Second operand has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 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) [2022-11-21 09:12:39,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:39,833 INFO L93 Difference]: Finished difference Result 717 states and 729 transitions. [2022-11-21 09:12:39,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-21 09:12:39,834 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 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 149 [2022-11-21 09:12:39,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:39,836 INFO L225 Difference]: With dead ends: 717 [2022-11-21 09:12:39,836 INFO L226 Difference]: Without dead ends: 433 [2022-11-21 09:12:39,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14727 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=9930, Invalid=39132, Unknown=0, NotChecked=0, Total=49062 [2022-11-21 09:12:39,842 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 452 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:39,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 184 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-21 09:12:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 424. [2022-11-21 09:12:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 421 states have (on average 1.0190023752969122) internal successors, (429), 423 states have internal predecessors, (429), 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) [2022-11-21 09:12:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 429 transitions. [2022-11-21 09:12:39,891 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 429 transitions. Word has length 149 [2022-11-21 09:12:39,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:39,892 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 429 transitions. [2022-11-21 09:12:39,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 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) [2022-11-21 09:12:39,892 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 429 transitions. [2022-11-21 09:12:39,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-21 09:12:39,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:39,894 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:39,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:40,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 09:12:40,100 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:40,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1695412863, now seen corresponding path program 3 times [2022-11-21 09:12:40,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:40,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434785737] [2022-11-21 09:12:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:40,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2017 trivial. 0 not checked. [2022-11-21 09:12:40,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:40,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434785737] [2022-11-21 09:12:40,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434785737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:40,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844964544] [2022-11-21 09:12:40,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 09:12:40,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:40,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:40,330 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:40,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 09:12:40,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-21 09:12:40,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:12:40,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 09:12:40,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2021 trivial. 0 not checked. [2022-11-21 09:12:40,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:40,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844964544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:40,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:40,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-21 09:12:40,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619528872] [2022-11-21 09:12:40,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:40,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:12:40,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:40,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:12:40,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:12:40,502 INFO L87 Difference]: Start difference. First operand 424 states and 429 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-11-21 09:12:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:40,579 INFO L93 Difference]: Finished difference Result 424 states and 429 transitions. [2022-11-21 09:12:40,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:12:40,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 153 [2022-11-21 09:12:40,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:40,581 INFO L225 Difference]: With dead ends: 424 [2022-11-21 09:12:40,581 INFO L226 Difference]: Without dead ends: 408 [2022-11-21 09:12:40,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:40,582 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:40,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 49 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:40,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-11-21 09:12:40,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2022-11-21 09:12:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 406 states have (on average 1.0123152709359606) internal successors, (411), 407 states have internal predecessors, (411), 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) [2022-11-21 09:12:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 411 transitions. [2022-11-21 09:12:40,618 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 411 transitions. Word has length 153 [2022-11-21 09:12:40,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:40,618 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 411 transitions. [2022-11-21 09:12:40,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-11-21 09:12:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 411 transitions. [2022-11-21 09:12:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-21 09:12:40,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:40,622 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-21 09:12:40,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:40,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 09:12:40,829 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:40,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:40,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1189383870, now seen corresponding path program 1 times [2022-11-21 09:12:40,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:40,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527222548] [2022-11-21 09:12:40,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:40,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,189 INFO L134 CoverageAnalysis]: Checked inductivity of 8199 backedges. 0 proven. 4167 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-21 09:12:41,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:41,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527222548] [2022-11-21 09:12:41,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527222548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:41,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445124281] [2022-11-21 09:12:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:41,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:41,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:41,191 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:41,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 09:12:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:41,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 09:12:41,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:41,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8199 backedges. 4167 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-21 09:12:41,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:41,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445124281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:41,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:41,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 09:12:41,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418972200] [2022-11-21 09:12:41,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:41,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:12:41,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:41,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:12:41,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:12:41,787 INFO L87 Difference]: Start difference. First operand 408 states and 411 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-21 09:12:41,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:41,853 INFO L93 Difference]: Finished difference Result 408 states and 411 transitions. [2022-11-21 09:12:41,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:12:41,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 272 [2022-11-21 09:12:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:41,855 INFO L225 Difference]: With dead ends: 408 [2022-11-21 09:12:41,855 INFO L226 Difference]: Without dead ends: 407 [2022-11-21 09:12:41,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:12:41,858 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:41,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 48 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-21 09:12:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2022-11-21 09:12:41,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.0098522167487685) internal successors, (410), 406 states have internal predecessors, (410), 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) [2022-11-21 09:12:41,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 410 transitions. [2022-11-21 09:12:41,891 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 410 transitions. Word has length 272 [2022-11-21 09:12:41,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:41,892 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 410 transitions. [2022-11-21 09:12:41,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-11-21 09:12:41,892 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 410 transitions. [2022-11-21 09:12:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-11-21 09:12:41,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:41,899 INFO L195 NwaCegarLoop]: trace histogram [96, 96, 96, 96, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-11-21 09:12:41,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:42,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 09:12:42,106 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 09:12:42,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash -672702516, now seen corresponding path program 2 times [2022-11-21 09:12:42,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:42,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021789103] [2022-11-21 09:12:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:42,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-21 09:12:42,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021789103] [2022-11-21 09:12:42,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021789103] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055747658] [2022-11-21 09:12:42,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:12:42,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:42,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:42,656 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:42,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 09:12:42,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:12:42,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:12:42,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 09:12:42,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:43,614 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-21 09:12:43,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-21 09:12:44,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055747658] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:44,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:12:44,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-21 09:12:44,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227803014] [2022-11-21 09:12:44,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:44,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 09:12:44,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:44,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 09:12:44,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-21 09:12:44,305 INFO L87 Difference]: Start difference. First operand 407 states and 410 transitions. Second operand has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 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) [2022-11-21 09:12:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:44,425 INFO L93 Difference]: Finished difference Result 544 states and 549 transitions. [2022-11-21 09:12:44,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:12:44,425 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 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 406 [2022-11-21 09:12:44,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:44,426 INFO L225 Difference]: With dead ends: 544 [2022-11-21 09:12:44,427 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 09:12:44,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 821 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-21 09:12:44,428 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:44,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 48 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:12:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 09:12:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 09:12:44,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-21 09:12:44,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 09:12:44,430 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2022-11-21 09:12:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:44,430 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:12:44,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 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) [2022-11-21 09:12:44,430 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:12:44,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 09:12:44,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-21 09:12:44,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-21 09:12:44,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-21 09:12:44,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-21 09:12:44,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-21 09:12:44,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-21 09:12:44,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-21 09:12:44,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 09:12:44,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 09:12:49,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-21 09:12:49,834 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2022-11-21 09:12:49,834 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2022-11-21 09:12:49,834 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2022-11-21 09:12:49,834 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (let ((.cse0 (= 32 |ULTIMATE.start_foo_~size#1|)) (.cse2 (= |ULTIMATE.start_foo_~i~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse5 (< |ULTIMATE.start_foo_~i~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~i~1#1|)) (.cse6 (<= |ULTIMATE.start_foo_~size#1| 32)) (.cse7 (<= 1 |ULTIMATE.start_foo_~i~0#1|)) (.cse3 (< |ULTIMATE.start_main_~i~1#1| 2147483645))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse2) (and .cse5 .cse4 .cse6 .cse7) (and .cse5 .cse1 .cse6 .cse7 .cse3))) [2022-11-21 09:12:49,834 INFO L899 garLoopResultBuilder]: For program point L15-6(lines 15 17) no Hoare annotation was computed. [2022-11-21 09:12:49,835 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 09:12:49,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-21 09:12:49,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 09:12:49,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-21 09:12:49,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 09:12:49,835 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2022-11-21 09:12:49,836 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2022-11-21 09:12:49,836 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-11-21 09:12:49,836 INFO L895 garLoopResultBuilder]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|)) [2022-11-21 09:12:49,836 INFO L899 garLoopResultBuilder]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2022-11-21 09:12:49,836 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-21 09:12:49,836 INFO L902 garLoopResultBuilder]: At program point L33(lines 21 34) the Hoare annotation is: true [2022-11-21 09:12:49,837 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 09:12:49,837 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2022-11-21 09:12:49,837 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-21 09:12:49,837 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2022-11-21 09:12:49,837 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-21 09:12:49,837 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-21 09:12:49,838 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 27) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|) (< |ULTIMATE.start_main_~i~1#1| 2147483646))) [2022-11-21 09:12:49,838 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 27) no Hoare annotation was computed. [2022-11-21 09:12:49,838 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-21 09:12:49,838 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-21 09:12:49,838 INFO L895 garLoopResultBuilder]: At program point L18(lines 12 19) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_foo_~i~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_foo_~size#1| 32)) (.cse2 (<= 1 |ULTIMATE.start_foo_~i~0#1|))) (or (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 .cse2) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse1 .cse2 (< |ULTIMATE.start_main_~i~1#1| 2147483645)))) [2022-11-21 09:12:49,842 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:49,844 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:12:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:12:49 BoogieIcfgContainer [2022-11-21 09:12:49,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:12:49,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:12:49,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:12:49,862 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:12:49,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:05" (3/4) ... [2022-11-21 09:12:49,865 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:12:49,876 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 09:12:49,876 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 09:12:49,876 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:12:49,876 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:12:49,908 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:12:49,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:12:49,909 INFO L158 Benchmark]: Toolchain (without parser) took 45559.72ms. Allocated memory was 148.9MB in the beginning and 377.5MB in the end (delta: 228.6MB). Free memory was 110.0MB in the beginning and 275.4MB in the end (delta: -165.4MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2022-11-21 09:12:49,909 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:12:49,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.93ms. Allocated memory is still 148.9MB. Free memory was 110.0MB in the beginning and 117.9MB in the end (delta: -7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 09:12:49,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.04ms. Allocated memory is still 148.9MB. Free memory was 117.9MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:12:49,910 INFO L158 Benchmark]: Boogie Preprocessor took 34.05ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 115.1MB in the end (delta: 824.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:12:49,911 INFO L158 Benchmark]: RCFGBuilder took 423.27ms. Allocated memory is still 148.9MB. Free memory was 115.1MB in the beginning and 103.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 09:12:49,911 INFO L158 Benchmark]: TraceAbstraction took 44698.30ms. Allocated memory was 148.9MB in the beginning and 377.5MB in the end (delta: 228.6MB). Free memory was 102.7MB in the beginning and 277.5MB in the end (delta: -174.9MB). Peak memory consumption was 218.8MB. Max. memory is 16.1GB. [2022-11-21 09:12:49,911 INFO L158 Benchmark]: Witness Printer took 47.36ms. Allocated memory is still 377.5MB. Free memory was 277.5MB in the beginning and 275.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:12:49,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.93ms. Allocated memory is still 148.9MB. Free memory was 110.0MB in the beginning and 117.9MB in the end (delta: -7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.04ms. Allocated memory is still 148.9MB. Free memory was 117.9MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.05ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 115.1MB in the end (delta: 824.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.27ms. Allocated memory is still 148.9MB. Free memory was 115.1MB in the beginning and 103.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 44698.30ms. Allocated memory was 148.9MB in the beginning and 377.5MB in the end (delta: 228.6MB). Free memory was 102.7MB in the beginning and 277.5MB in the end (delta: -174.9MB). Peak memory consumption was 218.8MB. Max. memory is 16.1GB. * Witness Printer took 47.36ms. Allocated memory is still 377.5MB. Free memory was 277.5MB in the beginning and 275.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 44.6s, OverallIterations: 16, TraceHistogramMax: 96, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1620 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1620 mSDsluCounter, 1434 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1140 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1315 IncrementalHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 294 mSDtfsCounter, 1315 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2492 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 632 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20273 ImplicationChecksByTransitivity, 21.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=424occurred in iteration=13, InterpolantAutomatonStates: 292, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 285 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 151 NumberOfFragments, 122 HoareAnnotationTreeSize, 5 FomulaSimplifications, 1972 FormulaSimplificationTreeSizeReduction, 3.7s HoareSimplificationTime, 5 FomulaSimplificationsInter, 11314 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 28.0s InterpolantComputationTime, 2740 NumberOfCodeBlocks, 2467 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 3476 ConstructedInterpolants, 0 QuantifiedInterpolants, 11704 SizeOfPredicates, 87 NumberOfNonLiveVariables, 3215 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 36 InterpolantComputations, 8 PerfectInterpolantSequences, 36518/87450 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((i < 2147483647 && i == 0) && size <= 32) && 1 <= i) || ((((i < 2147483647 && 1 <= i) && size <= 32) && 1 <= i) && i < 2147483645) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((((32 == size && 1 <= i) && i == 0) && i < 2147483645) || ((i == 0 && 32 == size) && i == 0)) || (((i < 2147483647 && i == 0) && size <= 32) && 1 <= i)) || ((((i < 2147483647 && 1 <= i) && size <= 32) && 1 <= i) && i < 2147483645) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i == 0 || ((((i < 2147483647 && 1 <= i) && size <= 32) && 1 <= i) && i < 2147483646) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((i < 2147483647 && i <= 2147483647) && 0 <= i + 2147483648) && size <= 32) && 1 <= i RESULT: Ultimate proved your program to be correct! [2022-11-21 09:12:49,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef3edd6-88f7-457c-ab94-7a7704e3fdf0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE