./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/cstrpbrk-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/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_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/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_3d9830de-b89f-4301-ac95-28720eb90fc3/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 4f4570e8b350d1c6ecce62e4659f1c324ac9794563382f5f25c3525057748138 --- 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 16:22:29,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:22:29,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:22:29,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:22:29,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:22:29,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:22:29,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:22:29,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:22:29,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:22:29,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:22:29,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:22:29,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:22:29,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:22:29,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:22:29,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:22:29,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:22:29,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:22:29,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:22:29,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:22:29,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:22:29,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:22:29,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:22:29,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:22:29,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:22:29,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:22:29,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:22:29,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:22:29,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:22:29,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:22:29,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:22:29,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:22:29,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:22:29,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:22:29,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:22:29,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:22:29,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:22:29,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:22:29,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:22:29,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:22:29,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:22:29,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:22:29,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:22:29,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:22:29,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:22:29,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:22:29,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:22:29,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:22:29,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:22:29,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:22:29,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:22:29,733 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:22:29,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:22:29,734 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:22:29,734 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:22:29,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:22:29,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:22:29,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:22:29,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:22:29,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:22:29,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:22:29,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:22:29,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:22:29,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:22:29,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:22:29,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:22:29,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:22:29,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:22:29,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:22:29,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:22:29,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:22:29,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:22:29,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:22:29,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:22:29,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:22:29,748 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:22:29,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:22:29,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:22:29,748 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_3d9830de-b89f-4301-ac95-28720eb90fc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f4570e8b350d1c6ecce62e4659f1c324ac9794563382f5f25c3525057748138 [2022-11-21 16:22:29,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:22:30,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:22:30,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:22:30,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:22:30,021 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:22:30,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/array-memsafety/cstrpbrk-alloca-2.i [2022-11-21 16:22:33,207 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:22:33,476 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:22:33,477 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/sv-benchmarks/c/array-memsafety/cstrpbrk-alloca-2.i [2022-11-21 16:22:33,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/data/d48f1d4bd/aec3f63b19744c1eb94b8d8c431f037e/FLAGf05917716 [2022-11-21 16:22:33,501 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/data/d48f1d4bd/aec3f63b19744c1eb94b8d8c431f037e [2022-11-21 16:22:33,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:22:33,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:22:33,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:22:33,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:22:33,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:22:33,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:33,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1409fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33, skipping insertion in model container [2022-11-21 16:22:33,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:33,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:22:33,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:22:33,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:22:33,851 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:22:33,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:22:33,959 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:22:33,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33 WrapperNode [2022-11-21 16:22:33,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:22:33,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:22:33,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:22:33,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:22:33,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:33,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,023 INFO L138 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 113 [2022-11-21 16:22:34,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:22:34,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:22:34,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:22:34,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:22:34,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,046 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:22:34,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:22:34,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:22:34,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:22:34,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (1/1) ... [2022-11-21 16:22:34,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:22:34,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:34,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:22:34,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:22:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:22:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:22:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:22:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:22:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:22:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:22:34,299 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:22:34,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:22:34,564 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:22:34,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:22:34,570 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 16:22:34,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:22:34 BoogieIcfgContainer [2022-11-21 16:22:34,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:22:34,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:22:34,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:22:34,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:22:34,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:22:33" (1/3) ... [2022-11-21 16:22:34,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ee318f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:22:34, skipping insertion in model container [2022-11-21 16:22:34,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:22:33" (2/3) ... [2022-11-21 16:22:34,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ee318f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:22:34, skipping insertion in model container [2022-11-21 16:22:34,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:22:34" (3/3) ... [2022-11-21 16:22:34,598 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrpbrk-alloca-2.i [2022-11-21 16:22:34,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:22:34,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-21 16:22:34,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:22:34,718 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;@1c7b6c87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:22:34,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-21 16:22:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 46 states have internal predecessors, (58), 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 16:22:34,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:22:34,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:34,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:22:34,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:34,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash 889510733, now seen corresponding path program 1 times [2022-11-21 16:22:34,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:34,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501739858] [2022-11-21 16:22:34,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:34,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,055 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 16:22:35,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:35,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501739858] [2022-11-21 16:22:35,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501739858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:35,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:35,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:22:35,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043970529] [2022-11-21 16:22:35,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:35,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:22:35,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:35,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:22:35,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:22:35,125 INFO L87 Difference]: Start difference. First operand has 47 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 46 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:22:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:35,238 INFO L93 Difference]: Finished difference Result 120 states and 151 transitions. [2022-11-21 16:22:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:22:35,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:22:35,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:35,252 INFO L225 Difference]: With dead ends: 120 [2022-11-21 16:22:35,253 INFO L226 Difference]: Without dead ends: 61 [2022-11-21 16:22:35,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:35,261 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 46 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:35,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 85 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:22:35,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-21 16:22:35,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2022-11-21 16:22:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 49 states have internal predecessors, (63), 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 16:22:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2022-11-21 16:22:35,305 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 6 [2022-11-21 16:22:35,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:35,306 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-11-21 16:22:35,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:22:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2022-11-21 16:22:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:22:35,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:35,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:22:35,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:22:35,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:35,311 INFO L85 PathProgramCache]: Analyzing trace with hash 889570315, now seen corresponding path program 1 times [2022-11-21 16:22:35,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:35,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559774238] [2022-11-21 16:22:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:35,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,415 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 16:22:35,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:35,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559774238] [2022-11-21 16:22:35,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559774238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:35,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:35,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:22:35,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339871904] [2022-11-21 16:22:35,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:35,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:22:35,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:35,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:22:35,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:22:35,420 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:22:35,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:35,450 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2022-11-21 16:22:35,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:22:35,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:22:35,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:35,454 INFO L225 Difference]: With dead ends: 50 [2022-11-21 16:22:35,454 INFO L226 Difference]: Without dead ends: 48 [2022-11-21 16:22:35,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:35,458 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:35,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-21 16:22:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2022-11-21 16:22:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 31 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 16:22:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-11-21 16:22:35,464 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 6 [2022-11-21 16:22:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:35,464 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-11-21 16:22:35,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:22:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-11-21 16:22:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:22:35,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:35,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:35,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:22:35,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:35,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028999, now seen corresponding path program 1 times [2022-11-21 16:22:35,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:35,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112603346] [2022-11-21 16:22:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:35,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,562 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 16:22:35,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:35,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112603346] [2022-11-21 16:22:35,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112603346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:35,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:35,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:22:35,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491405763] [2022-11-21 16:22:35,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:35,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:22:35,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:35,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:22:35,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:22:35,564 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:22:35,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:35,583 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-11-21 16:22:35,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:22:35,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-21 16:22:35,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:35,585 INFO L225 Difference]: With dead ends: 32 [2022-11-21 16:22:35,585 INFO L226 Difference]: Without dead ends: 30 [2022-11-21 16:22:35,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:35,586 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:35,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:35,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-21 16:22:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-21 16:22:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5) internal successors, (33), 29 states have internal predecessors, (33), 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 16:22:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-21 16:22:35,591 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 7 [2022-11-21 16:22:35,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:35,592 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-21 16:22:35,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:22:35,592 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-21 16:22:35,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:22:35,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:35,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:35,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:22:35,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:35,594 INFO L85 PathProgramCache]: Analyzing trace with hash 628418293, now seen corresponding path program 1 times [2022-11-21 16:22:35,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:35,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098649820] [2022-11-21 16:22:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:35,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,653 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 16:22:35,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:35,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098649820] [2022-11-21 16:22:35,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098649820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:35,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:35,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:22:35,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691050084] [2022-11-21 16:22:35,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:35,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:22:35,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:35,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:22:35,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:22:35,656 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:35,701 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-11-21 16:22:35,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:22:35,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:35,702 INFO L225 Difference]: With dead ends: 54 [2022-11-21 16:22:35,702 INFO L226 Difference]: Without dead ends: 52 [2022-11-21 16:22:35,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:35,704 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:35,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 45 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:35,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-21 16:22:35,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-11-21 16:22:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 46 states have internal predecessors, (57), 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 16:22:35,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-21 16:22:35,711 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 10 [2022-11-21 16:22:35,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:35,711 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-21 16:22:35,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-21 16:22:35,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:22:35,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:35,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:35,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:22:35,713 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:35,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash 628419956, now seen corresponding path program 1 times [2022-11-21 16:22:35,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:35,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127605486] [2022-11-21 16:22:35,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:35,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,791 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 16:22:35,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:35,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127605486] [2022-11-21 16:22:35,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127605486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:35,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:35,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:22:35,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905166534] [2022-11-21 16:22:35,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:35,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:22:35,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:35,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:22:35,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:22:35,793 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 16:22:35,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:35,834 INFO L93 Difference]: Finished difference Result 124 states and 149 transitions. [2022-11-21 16:22:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:22:35,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 16:22:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:35,836 INFO L225 Difference]: With dead ends: 124 [2022-11-21 16:22:35,836 INFO L226 Difference]: Without dead ends: 83 [2022-11-21 16:22:35,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:22:35,837 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:35,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 71 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:35,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-21 16:22:35,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 56. [2022-11-21 16:22:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 55 states have internal predecessors, (67), 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 16:22:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2022-11-21 16:22:35,848 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 10 [2022-11-21 16:22:35,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:35,849 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2022-11-21 16:22:35,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 16:22:35,849 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2022-11-21 16:22:35,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:22:35,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:35,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:35,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:22:35,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:35,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1891541641, now seen corresponding path program 1 times [2022-11-21 16:22:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:35,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413989668] [2022-11-21 16:22:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:35,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:35,900 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 16:22:35,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:35,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413989668] [2022-11-21 16:22:35,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413989668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:35,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:35,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:22:35,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304193350] [2022-11-21 16:22:35,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:35,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:22:35,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:35,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:22:35,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:22:35,904 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:35,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:35,922 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2022-11-21 16:22:35,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:22:35,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:35,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:35,923 INFO L225 Difference]: With dead ends: 56 [2022-11-21 16:22:35,924 INFO L226 Difference]: Without dead ends: 54 [2022-11-21 16:22:35,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:35,925 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:35,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:35,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-21 16:22:35,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 33. [2022-11-21 16:22:35,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 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 16:22:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-11-21 16:22:35,931 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2022-11-21 16:22:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:35,931 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-11-21 16:22:35,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 16:22:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-11-21 16:22:35,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:22:35,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:35,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:35,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:22:35,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash -180926670, now seen corresponding path program 1 times [2022-11-21 16:22:35,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:35,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743973240] [2022-11-21 16:22:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:35,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,015 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 16:22:36,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743973240] [2022-11-21 16:22:36,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743973240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:36,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:36,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:22:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438144947] [2022-11-21 16:22:36,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:36,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:22:36,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:36,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:22:36,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:22:36,018 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 16:22:36,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:36,048 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-11-21 16:22:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:22:36,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 16:22:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:36,050 INFO L225 Difference]: With dead ends: 56 [2022-11-21 16:22:36,050 INFO L226 Difference]: Without dead ends: 54 [2022-11-21 16:22:36,050 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 16:22:36,051 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:36,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:36,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-21 16:22:36,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2022-11-21 16:22:36,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 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 16:22:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-11-21 16:22:36,057 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 10 [2022-11-21 16:22:36,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:36,057 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-11-21 16:22:36,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 16:22:36,057 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-11-21 16:22:36,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:22:36,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:36,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:36,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:22:36,059 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:36,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:36,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1993869323, now seen corresponding path program 1 times [2022-11-21 16:22:36,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:36,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679128990] [2022-11-21 16:22:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:36,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,104 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 16:22:36,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:36,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679128990] [2022-11-21 16:22:36,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679128990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:36,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:36,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:22:36,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850470082] [2022-11-21 16:22:36,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:36,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:22:36,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:36,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:22:36,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:22:36,107 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 16:22:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:36,139 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-11-21 16:22:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:22:36,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 16:22:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:36,140 INFO L225 Difference]: With dead ends: 39 [2022-11-21 16:22:36,140 INFO L226 Difference]: Without dead ends: 33 [2022-11-21 16:22:36,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:22:36,141 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:36,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:36,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-21 16:22:36,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-21 16:22:36,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 32 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 16:22:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-11-21 16:22:36,146 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-11-21 16:22:36,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:36,147 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-11-21 16:22:36,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 16:22:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-11-21 16:22:36,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:22:36,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:36,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:36,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:22:36,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash 36780700, now seen corresponding path program 1 times [2022-11-21 16:22:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:36,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241925168] [2022-11-21 16:22:36,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:36,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,256 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 16:22:36,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:36,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241925168] [2022-11-21 16:22:36,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241925168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:36,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:36,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:22:36,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057571096] [2022-11-21 16:22:36,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:36,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:22:36,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:22:36,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:22:36,259 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:22:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:36,299 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-11-21 16:22:36,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:22:36,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-21 16:22:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:36,302 INFO L225 Difference]: With dead ends: 64 [2022-11-21 16:22:36,302 INFO L226 Difference]: Without dead ends: 48 [2022-11-21 16:22:36,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:22:36,303 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:36,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 55 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:36,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-21 16:22:36,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-11-21 16:22:36,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 45 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 16:22:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-11-21 16:22:36,309 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 14 [2022-11-21 16:22:36,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:36,309 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-11-21 16:22:36,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:22:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-11-21 16:22:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:22:36,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:36,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:36,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:22:36,317 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:36,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:36,318 INFO L85 PathProgramCache]: Analyzing trace with hash 737845278, now seen corresponding path program 1 times [2022-11-21 16:22:36,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:36,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515670468] [2022-11-21 16:22:36,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:36,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,425 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 16:22:36,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:36,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515670468] [2022-11-21 16:22:36,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515670468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:36,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:22:36,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:22:36,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842346717] [2022-11-21 16:22:36,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:36,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:22:36,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:36,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:22:36,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:22:36,428 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:22:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:36,465 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-11-21 16:22:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:22:36,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-21 16:22:36,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:36,467 INFO L225 Difference]: With dead ends: 54 [2022-11-21 16:22:36,467 INFO L226 Difference]: Without dead ends: 52 [2022-11-21 16:22:36,467 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 16:22:36,468 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:36,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-21 16:22:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-21 16:22:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 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 16:22:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-11-21 16:22:36,485 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 14 [2022-11-21 16:22:36,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:36,485 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-11-21 16:22:36,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:22:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-11-21 16:22:36,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:22:36,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:36,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:36,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:22:36,490 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:36,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:36,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1917321044, now seen corresponding path program 1 times [2022-11-21 16:22:36,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:36,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962111228] [2022-11-21 16:22:36,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:36,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:36,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:36,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962111228] [2022-11-21 16:22:36,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962111228] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:22:36,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538262584] [2022-11-21 16:22:36,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:36,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:36,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:36,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:22:36,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:22:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:36,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:22:36,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:22:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:36,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:22:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:36,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538262584] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:22:36,882 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:22:36,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 16:22:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159131455] [2022-11-21 16:22:36,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:22:36,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:22:36,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:22:36,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:22:36,886 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 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 16:22:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:37,081 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions. [2022-11-21 16:22:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:22:37,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 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) Word has length 16 [2022-11-21 16:22:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:37,087 INFO L225 Difference]: With dead ends: 152 [2022-11-21 16:22:37,087 INFO L226 Difference]: Without dead ends: 151 [2022-11-21 16:22:37,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:22:37,089 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 95 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:37,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 155 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:22:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-21 16:22:37,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 86. [2022-11-21 16:22:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 85 states have internal predecessors, (99), 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 16:22:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 99 transitions. [2022-11-21 16:22:37,112 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 99 transitions. Word has length 16 [2022-11-21 16:22:37,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:37,112 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 99 transitions. [2022-11-21 16:22:37,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 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 16:22:37,112 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 99 transitions. [2022-11-21 16:22:37,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 16:22:37,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:37,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:37,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:22:37,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 16:22:37,324 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:37,324 INFO L85 PathProgramCache]: Analyzing trace with hash 692589843, now seen corresponding path program 1 times [2022-11-21 16:22:37,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:37,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640193847] [2022-11-21 16:22:37,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:37,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:37,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640193847] [2022-11-21 16:22:37,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640193847] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:22:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664921097] [2022-11-21 16:22:37,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:37,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:37,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:37,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:22:37,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:22:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:37,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:22:37,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:22:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:37,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:22:37,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664921097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:37,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:22:37,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 16:22:37,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100503346] [2022-11-21 16:22:37,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:37,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:22:37,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:37,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:22:37,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:22:37,549 INFO L87 Difference]: Start difference. First operand 86 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:22:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:37,601 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2022-11-21 16:22:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:22:37,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-21 16:22:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:37,603 INFO L225 Difference]: With dead ends: 101 [2022-11-21 16:22:37,603 INFO L226 Difference]: Without dead ends: 100 [2022-11-21 16:22:37,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 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 16:22:37,604 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:37,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 101 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-21 16:22:37,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2022-11-21 16:22:37,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 84 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:22:37,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-11-21 16:22:37,626 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 17 [2022-11-21 16:22:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:37,626 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-11-21 16:22:37,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:22:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-11-21 16:22:37,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:22:37,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:37,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:37,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:22:37,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:37,834 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:37,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:37,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1973612760, now seen corresponding path program 1 times [2022-11-21 16:22:37,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:37,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990650505] [2022-11-21 16:22:37,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:37,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:37,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:37,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:37,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990650505] [2022-11-21 16:22:37,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990650505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:22:37,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898109149] [2022-11-21 16:22:37,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:37,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:37,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:37,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:22:37,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:22:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:38,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:22:38,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:22:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:38,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:22:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:38,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898109149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:22:38,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:22:38,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 16:22:38,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465908743] [2022-11-21 16:22:38,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:22:38,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:22:38,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:38,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:22:38,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:22:38,127 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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 16:22:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:38,275 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2022-11-21 16:22:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:22:38,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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 20 [2022-11-21 16:22:38,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:38,276 INFO L225 Difference]: With dead ends: 107 [2022-11-21 16:22:38,276 INFO L226 Difference]: Without dead ends: 106 [2022-11-21 16:22:38,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:22:38,278 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:38,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 96 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:22:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-21 16:22:38,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2022-11-21 16:22:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.1313131313131313) internal successors, (112), 101 states have internal predecessors, (112), 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 16:22:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2022-11-21 16:22:38,311 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 20 [2022-11-21 16:22:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:38,312 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2022-11-21 16:22:38,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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 16:22:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2022-11-21 16:22:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 16:22:38,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:38,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:38,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:22:38,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 16:22:38,519 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1052453501, now seen corresponding path program 1 times [2022-11-21 16:22:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:38,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533317814] [2022-11-21 16:22:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:38,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:38,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:38,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533317814] [2022-11-21 16:22:38,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533317814] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:22:38,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432443372] [2022-11-21 16:22:38,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:38,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:38,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:38,596 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:22:38,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:22:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:38,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:22:38,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:22:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:38,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:22:38,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432443372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:22:38,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:22:38,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 16:22:38,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25620553] [2022-11-21 16:22:38,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:22:38,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:22:38,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:22:38,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:22:38,701 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 16:22:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:38,738 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-11-21 16:22:38,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:22:38,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2022-11-21 16:22:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:38,740 INFO L225 Difference]: With dead ends: 102 [2022-11-21 16:22:38,740 INFO L226 Difference]: Without dead ends: 101 [2022-11-21 16:22:38,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 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 16:22:38,741 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:38,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:22:38,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-21 16:22:38,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-11-21 16:22:38,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 99 states have (on average 1.101010101010101) internal successors, (109), 100 states have internal predecessors, (109), 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 16:22:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2022-11-21 16:22:38,750 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 21 [2022-11-21 16:22:38,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:38,750 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2022-11-21 16:22:38,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 16:22:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2022-11-21 16:22:38,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-21 16:22:38,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:38,751 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:38,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:22:38,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:38,957 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:38,958 INFO L85 PathProgramCache]: Analyzing trace with hash 733845530, now seen corresponding path program 2 times [2022-11-21 16:22:38,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:38,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378430245] [2022-11-21 16:22:38,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:38,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:39,140 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:39,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:39,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378430245] [2022-11-21 16:22:39,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378430245] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:22:39,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228885053] [2022-11-21 16:22:39,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:22:39,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:39,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:39,142 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:22:39,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:22:39,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:22:39,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:22:39,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:22:39,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:22:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 16:22:39,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:22:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 16:22:39,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228885053] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:22:39,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:22:39,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-11-21 16:22:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814401324] [2022-11-21 16:22:39,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:22:39,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:22:39,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:22:39,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:22:39,417 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 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 16:22:39,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:39,694 INFO L93 Difference]: Finished difference Result 307 states and 319 transitions. [2022-11-21 16:22:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:22:39,695 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 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 34 [2022-11-21 16:22:39,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:39,696 INFO L225 Difference]: With dead ends: 307 [2022-11-21 16:22:39,696 INFO L226 Difference]: Without dead ends: 266 [2022-11-21 16:22:39,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 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 16:22:39,698 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 249 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:39,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 90 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:22:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-21 16:22:39,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 47. [2022-11-21 16:22:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 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 16:22:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2022-11-21 16:22:39,707 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 34 [2022-11-21 16:22:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:39,707 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2022-11-21 16:22:39,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 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 16:22:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2022-11-21 16:22:39,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-21 16:22:39,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:22:39,708 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:39,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:22:39,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 16:22:39,914 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 16:22:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:22:39,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1777905158, now seen corresponding path program 2 times [2022-11-21 16:22:39,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:22:39,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11736869] [2022-11-21 16:22:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:22:39,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:22:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:22:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:22:40,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:22:40,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11736869] [2022-11-21 16:22:40,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11736869] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:22:40,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233389673] [2022-11-21 16:22:40,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:22:40,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:22:40,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:22:40,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:22:40,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:22:40,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:22:40,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:22:40,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:22:40,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:22:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 16:22:40,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:22:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 16:22:40,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233389673] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:22:40,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:22:40,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-11-21 16:22:40,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225209256] [2022-11-21 16:22:40,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:22:40,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:22:40,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:22:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:22:40,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:22:40,392 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 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 16:22:40,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:22:40,610 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2022-11-21 16:22:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:22:40,610 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 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 38 [2022-11-21 16:22:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:22:40,611 INFO L225 Difference]: With dead ends: 57 [2022-11-21 16:22:40,611 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:22:40,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 69 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 16:22:40,613 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 61 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:22:40,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 55 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:22:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:22:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:22:40,615 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 16:22:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:22:40,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-11-21 16:22:40,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:22:40,616 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:22:40,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 18 states have internal predecessors, (72), 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 16:22:40,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:22:40,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:22:40,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-21 16:22:40,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-21 16:22:40,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-21 16:22:40,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-21 16:22:40,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-21 16:22:40,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-21 16:22:40,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-21 16:22:40,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-21 16:22:40,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-21 16:22:40,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-21 16:22:40,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-21 16:22:40,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-21 16:22:40,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:22:40,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 16:22:40,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:22:46,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-11-21 16:22:46,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-11-21 16:22:46,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-11-21 16:22:46,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:22:46,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:22:46,138 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 534) no Hoare annotation was computed. [2022-11-21 16:22:46,138 INFO L899 garLoopResultBuilder]: For program point L532-2(lines 529 555) no Hoare annotation was computed. [2022-11-21 16:22:46,138 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 525) no Hoare annotation was computed. [2022-11-21 16:22:46,139 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-21 16:22:46,139 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-11-21 16:22:46,139 INFO L899 garLoopResultBuilder]: For program point L541-1(line 541) no Hoare annotation was computed. [2022-11-21 16:22:46,139 INFO L899 garLoopResultBuilder]: For program point L541-2(lines 541 544) no Hoare annotation was computed. [2022-11-21 16:22:46,139 INFO L899 garLoopResultBuilder]: For program point L541-4(lines 541 544) no Hoare annotation was computed. [2022-11-21 16:22:46,139 INFO L899 garLoopResultBuilder]: For program point L541-5(line 541) no Hoare annotation was computed. [2022-11-21 16:22:46,139 INFO L899 garLoopResultBuilder]: For program point L541-6(line 541) no Hoare annotation was computed. [2022-11-21 16:22:46,140 INFO L895 garLoopResultBuilder]: At program point L541-7(lines 541 544) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 2147483647) .cse0 .cse1 .cse2 .cse3))) [2022-11-21 16:22:46,140 INFO L899 garLoopResultBuilder]: For program point L541-8(lines 541 544) no Hoare annotation was computed. [2022-11-21 16:22:46,140 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-21 16:22:46,140 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-21 16:22:46,140 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-11-21 16:22:46,140 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 535 537) no Hoare annotation was computed. [2022-11-21 16:22:46,140 INFO L902 garLoopResultBuilder]: At program point L527(lines 514 528) the Hoare annotation is: true [2022-11-21 16:22:46,140 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point L519-1(lines 519 526) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point L519-3(lines 519 526) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L902 garLoopResultBuilder]: At program point L519-4(lines 519 526) the Hoare annotation is: true [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point L519-5(lines 519 526) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:22:46,141 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L902 garLoopResultBuilder]: At program point L554(lines 529 555) the Hoare annotation is: true [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point L546-2(lines 546 549) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point L546-4(lines 546 549) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point L546-5(line 546) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point L546-6(line 546) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L895 garLoopResultBuilder]: At program point L546-7(lines 546 549) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse5 (< |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and .cse0 (<= |ULTIMATE.start_main_~length2~0#1| 1) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse5 (< |ULTIMATE.start_main_~i~1#1| 2147483647) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse4))) [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point L546-8(lines 546 549) no Hoare annotation was computed. [2022-11-21 16:22:46,142 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2022-11-21 16:22:46,143 INFO L899 garLoopResultBuilder]: For program point L522-1(line 522) no Hoare annotation was computed. [2022-11-21 16:22:46,143 INFO L899 garLoopResultBuilder]: For program point L522-3(lines 522 523) no Hoare annotation was computed. [2022-11-21 16:22:46,143 INFO L902 garLoopResultBuilder]: At program point L522-5(lines 522 523) the Hoare annotation is: true [2022-11-21 16:22:46,143 INFO L899 garLoopResultBuilder]: For program point L522-6(lines 522 523) no Hoare annotation was computed. [2022-11-21 16:22:46,146 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:22:46,149 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:22:46,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:22:46 BoogieIcfgContainer [2022-11-21 16:22:46,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:22:46,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:22:46,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:22:46,177 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:22:46,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:22:34" (3/4) ... [2022-11-21 16:22:46,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:22:46,193 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 16:22:46,194 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:22:46,194 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:22:46,194 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:22:46,244 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:22:46,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:22:46,245 INFO L158 Benchmark]: Toolchain (without parser) took 12739.83ms. Allocated memory was 165.7MB in the beginning and 450.9MB in the end (delta: 285.2MB). Free memory was 127.1MB in the beginning and 305.2MB in the end (delta: -178.1MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. [2022-11-21 16:22:46,245 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:22:46,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.85ms. Allocated memory is still 165.7MB. Free memory was 126.9MB in the beginning and 110.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 16:22:46,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.70ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:22:46,246 INFO L158 Benchmark]: Boogie Preprocessor took 25.80ms. Allocated memory is still 165.7MB. Free memory was 108.3MB in the beginning and 106.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:22:46,247 INFO L158 Benchmark]: RCFGBuilder took 522.15ms. Allocated memory is still 165.7MB. Free memory was 106.6MB in the beginning and 92.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:22:46,247 INFO L158 Benchmark]: TraceAbstraction took 11601.26ms. Allocated memory was 165.7MB in the beginning and 450.9MB in the end (delta: 285.2MB). Free memory was 91.9MB in the beginning and 308.4MB in the end (delta: -216.5MB). Peak memory consumption was 233.2MB. Max. memory is 16.1GB. [2022-11-21 16:22:46,247 INFO L158 Benchmark]: Witness Printer took 67.71ms. Allocated memory is still 450.9MB. Free memory was 308.4MB in the beginning and 305.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:22:46,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.85ms. Allocated memory is still 165.7MB. Free memory was 126.9MB in the beginning and 110.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.70ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.80ms. Allocated memory is still 165.7MB. Free memory was 108.3MB in the beginning and 106.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.15ms. Allocated memory is still 165.7MB. Free memory was 106.6MB in the beginning and 92.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11601.26ms. Allocated memory was 165.7MB in the beginning and 450.9MB in the end (delta: 285.2MB). Free memory was 91.9MB in the beginning and 308.4MB in the end (delta: -216.5MB). Peak memory consumption was 233.2MB. Max. memory is 16.1GB. * Witness Printer took 67.71ms. Allocated memory is still 450.9MB. Free memory was 308.4MB in the beginning and 305.2MB in the end (delta: 3.1MB). 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: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: 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, 47 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 675 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 675 mSDsluCounter, 1055 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 684 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 481 IncrementalHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 371 mSDtfsCounter, 481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=13, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 400 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 32 NumberOfFragments, 107 HoareAnnotationTreeSize, 6 FomulaSimplifications, 37674 FormulaSimplificationTreeSizeReduction, 4.9s HoareSimplificationTime, 6 FomulaSimplificationsInter, 57022 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 390 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 472 ConstructedInterpolants, 0 QuantifiedInterpolants, 1222 SizeOfPredicates, 14 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 204/390 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 12 specifications checked. All of them hold - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((((i == 0 && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || (((((1 <= i && i < 2147483647) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: ((((((i == 0 && length2 <= 1) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || ((((((i == 0 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && length2 <= 2147483647)) || (((((((i < 2147483647 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && 1 <= i) && length2 <= 2147483647) - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 529]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-21 16:22:46,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d9830de-b89f-4301-ac95-28720eb90fc3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE