./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro --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 e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 --- 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-8393723 [2022-11-18 18:27:55,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:27:55,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:27:55,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:27:55,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:27:55,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:27:55,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:27:55,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:27:55,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:27:55,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:27:55,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:27:55,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:27:55,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:27:55,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:27:55,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:27:55,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:27:55,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:27:55,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:27:55,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:27:55,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:27:55,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:27:55,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:27:55,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:27:55,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:27:55,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:27:55,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:27:55,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:27:55,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:27:55,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:27:55,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:27:55,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:27:55,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:27:55,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:27:55,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:27:55,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:27:55,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:27:55,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:27:55,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:27:55,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:27:55,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:27:55,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:27:55,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 18:27:55,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:27:55,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:27:55,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:27:55,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:27:55,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:27:55,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:27:55,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:27:55,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:27:55,697 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:27:55,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:27:55,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:27:55,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:27:55,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:27:55,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:27:55,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:27:55,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:27:55,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:27:55,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:27:55,700 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:27:55,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:27:55,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:27:55,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:27:55,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:27:55,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:27:55,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:27:55,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:27:55,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:55,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:27:55,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:27:55,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:27:55,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:27:55,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:27:55,703 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:27:55,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:27:55,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:27:55,703 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_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 [2022-11-18 18:27:56,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:27:56,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:27:56,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:27:56,062 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:27:56,063 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:27:56,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2022-11-18 18:27:56,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/data/6ea31c5aa/87db4a74e4c2423f88da4c5183866e84/FLAG0a9c87217 [2022-11-18 18:27:56,630 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:27:56,631 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2022-11-18 18:27:56,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/data/6ea31c5aa/87db4a74e4c2423f88da4c5183866e84/FLAG0a9c87217 [2022-11-18 18:27:57,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/data/6ea31c5aa/87db4a74e4c2423f88da4c5183866e84 [2022-11-18 18:27:57,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:27:57,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:27:57,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:57,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:27:57,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:27:57,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7bf0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57, skipping insertion in model container [2022-11-18 18:27:57,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:27:57,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:27:57,320 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i[873,886] [2022-11-18 18:27:57,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:57,350 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:27:57,368 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i[873,886] [2022-11-18 18:27:57,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:57,400 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:27:57,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57 WrapperNode [2022-11-18 18:27:57,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:57,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:57,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:27:57,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:27:57,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,450 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-11-18 18:27:57,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:57,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:27:57,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:27:57,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:27:57,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,487 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:27:57,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:27:57,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:27:57,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:27:57,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (1/1) ... [2022-11-18 18:27:57,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:57,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:57,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:27:57,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:27:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:27:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:27:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:27:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:27:57,649 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:27:57,652 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:27:57,901 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:27:57,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:27:57,907 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:27:57,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:57 BoogieIcfgContainer [2022-11-18 18:27:57,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:27:57,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:27:57,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:27:57,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:27:57,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:27:57" (1/3) ... [2022-11-18 18:27:57,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e328a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:57, skipping insertion in model container [2022-11-18 18:27:57,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:57" (2/3) ... [2022-11-18 18:27:57,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e328a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:57, skipping insertion in model container [2022-11-18 18:27:57,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:57" (3/3) ... [2022-11-18 18:27:57,935 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark41_conjunctive.i [2022-11-18 18:27:57,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:27:57,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 18:27:58,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:27:58,085 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;@3e094868, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:27:58,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 18:27:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 18:27:58,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:58,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 18:27:58,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:58,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:58,114 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-18 18:27:58,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:58,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711243779] [2022-11-18 18:27:58,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:58,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:58,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711243779] [2022-11-18 18:27:58,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711243779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:58,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:58,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:58,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808281303] [2022-11-18 18:27:58,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:58,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:58,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:58,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:58,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:58,520 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-18 18:27:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:58,669 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2022-11-18 18:27:58,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:58,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-18 18:27:58,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:58,681 INFO L225 Difference]: With dead ends: 69 [2022-11-18 18:27:58,682 INFO L226 Difference]: Without dead ends: 40 [2022-11-18 18:27:58,685 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 [2022-11-18 18:27:58,689 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:58,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 64 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:27:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-18 18:27:58,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 28. [2022-11-18 18:27:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 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) [2022-11-18 18:27:58,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-11-18 18:27:58,728 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2022-11-18 18:27:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:58,728 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-11-18 18:27:58,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-18 18:27:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-11-18 18:27:58,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 18:27:58,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:58,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:27:58,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:27:58,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:58,732 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-11-18 18:27:58,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:58,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151482032] [2022-11-18 18:27:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:58,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:58,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151482032] [2022-11-18 18:27:58,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151482032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:58,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:58,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:58,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87451035] [2022-11-18 18:27:58,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:58,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:58,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:58,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:58,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:58,803 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:58,853 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-18 18:27:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:58,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 18:27:58,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:58,855 INFO L225 Difference]: With dead ends: 28 [2022-11-18 18:27:58,855 INFO L226 Difference]: Without dead ends: 27 [2022-11-18 18:27:58,856 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 [2022-11-18 18:27:58,858 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:58,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 24 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-18 18:27:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-18 18:27:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 26 states have internal predecessors, (28), 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) [2022-11-18 18:27:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-11-18 18:27:58,865 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 6 [2022-11-18 18:27:58,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:58,866 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-18 18:27:58,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,866 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-11-18 18:27:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:27:58,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:58,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:58,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:27:58,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:58,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:58,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-11-18 18:27:58,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:58,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650861648] [2022-11-18 18:27:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:58,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650861648] [2022-11-18 18:27:58,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650861648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:58,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:58,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:58,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331179116] [2022-11-18 18:27:58,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:58,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:58,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:58,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:58,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:58,935 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-18 18:27:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,000 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2022-11-18 18:27:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-11-18 18:27:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,002 INFO L225 Difference]: With dead ends: 42 [2022-11-18 18:27:59,003 INFO L226 Difference]: Without dead ends: 41 [2022-11-18 18:27:59,003 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 [2022-11-18 18:27:59,005 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:59,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-18 18:27:59,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2022-11-18 18:27:59,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 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) [2022-11-18 18:27:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-11-18 18:27:59,013 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 7 [2022-11-18 18:27:59,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,014 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-18 18:27:59,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-18 18:27:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-11-18 18:27:59,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:27:59,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:27:59,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1806982231, now seen corresponding path program 1 times [2022-11-18 18:27:59,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440961639] [2022-11-18 18:27:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440961639] [2022-11-18 18:27:59,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440961639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:59,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216486037] [2022-11-18 18:27:59,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:59,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:59,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:59,153 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-18 18:27:59,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,233 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2022-11-18 18:27:59,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:59,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-11-18 18:27:59,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,235 INFO L225 Difference]: With dead ends: 39 [2022-11-18 18:27:59,235 INFO L226 Difference]: Without dead ends: 38 [2022-11-18 18:27:59,236 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 [2022-11-18 18:27:59,238 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 40 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:59,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-18 18:27:59,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2022-11-18 18:27:59,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.434782608695652) internal successors, (33), 31 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) [2022-11-18 18:27:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-18 18:27:59,245 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 7 [2022-11-18 18:27:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,246 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-18 18:27:59,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-18 18:27:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-18 18:27:59,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 18:27:59,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:27:59,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:59,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,249 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-11-18 18:27:59,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516941050] [2022-11-18 18:27:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516941050] [2022-11-18 18:27:59,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516941050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:59,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733406159] [2022-11-18 18:27:59,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:59,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:59,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:59,304 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,341 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-11-18 18:27:59,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:59,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 18:27:59,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,343 INFO L225 Difference]: With dead ends: 32 [2022-11-18 18:27:59,343 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 18:27:59,343 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 [2022-11-18 18:27:59,345 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 18:27:59,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-18 18:27:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.391304347826087) internal successors, (32), 30 states have internal predecessors, (32), 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) [2022-11-18 18:27:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-11-18 18:27:59,351 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 8 [2022-11-18 18:27:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,352 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-11-18 18:27:59,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-11-18 18:27:59,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 18:27:59,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:27:59,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,355 INFO L85 PathProgramCache]: Analyzing trace with hash 181874382, now seen corresponding path program 1 times [2022-11-18 18:27:59,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869765129] [2022-11-18 18:27:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869765129] [2022-11-18 18:27:59,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869765129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:59,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464774225] [2022-11-18 18:27:59,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:59,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:59,455 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,528 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-11-18 18:27:59,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:59,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 18:27:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,531 INFO L225 Difference]: With dead ends: 33 [2022-11-18 18:27:59,532 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 18:27:59,532 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 [2022-11-18 18:27:59,538 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 25 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:59,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 18:27:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-18 18:27:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 31 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) [2022-11-18 18:27:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-18 18:27:59,549 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 8 [2022-11-18 18:27:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,549 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-18 18:27:59,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-18 18:27:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 18:27:59,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:27:59,551 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:59,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-11-18 18:27:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504620488] [2022-11-18 18:27:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504620488] [2022-11-18 18:27:59,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504620488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:59,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983666001] [2022-11-18 18:27:59,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:59,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:59,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:59,634 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-18 18:27:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,661 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-11-18 18:27:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:59,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-18 18:27:59,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,664 INFO L225 Difference]: With dead ends: 32 [2022-11-18 18:27:59,664 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 18:27:59,665 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 [2022-11-18 18:27:59,666 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 18:27:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-18 18:27:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 30 states have internal predecessors, (32), 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) [2022-11-18 18:27:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-11-18 18:27:59,672 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2022-11-18 18:27:59,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,672 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-11-18 18:27:59,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-18 18:27:59,673 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-11-18 18:27:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 18:27:59,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:27:59,679 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:59,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1343138617, now seen corresponding path program 1 times [2022-11-18 18:27:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613627620] [2022-11-18 18:27:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613627620] [2022-11-18 18:27:59,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613627620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:59,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196861511] [2022-11-18 18:27:59,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:59,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:59,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:59,785 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-18 18:27:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,830 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2022-11-18 18:27:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:59,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-11-18 18:27:59,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,831 INFO L225 Difference]: With dead ends: 35 [2022-11-18 18:27:59,831 INFO L226 Difference]: Without dead ends: 34 [2022-11-18 18:27:59,832 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 [2022-11-18 18:27:59,832 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 33 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-18 18:27:59,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-11-18 18:27:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.32) internal successors, (33), 31 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) [2022-11-18 18:27:59,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-18 18:27:59,837 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 9 [2022-11-18 18:27:59,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,837 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-18 18:27:59,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-18 18:27:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-18 18:27:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 18:27:59,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:27:59,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:59,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-11-18 18:27:59,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002642806] [2022-11-18 18:27:59,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002642806] [2022-11-18 18:27:59,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002642806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:27:59,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060453130] [2022-11-18 18:27:59,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:59,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:59,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:59,866 INFO L87 Difference]: Start difference. First operand 32 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) [2022-11-18 18:27:59,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,881 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2022-11-18 18:27:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:59,882 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 [2022-11-18 18:27:59,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,883 INFO L225 Difference]: With dead ends: 38 [2022-11-18 18:27:59,883 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 18:27:59,883 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 [2022-11-18 18:27:59,884 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 18:27:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-11-18 18:27:59,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 34 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-18 18:27:59,889 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 10 [2022-11-18 18:27:59,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,889 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-18 18:27:59,889 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) [2022-11-18 18:27:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-18 18:27:59,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 18:27:59,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:27:59,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:27:59,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1312375760, now seen corresponding path program 1 times [2022-11-18 18:27:59,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025205868] [2022-11-18 18:27:59,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:59,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025205868] [2022-11-18 18:27:59,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025205868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:59,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:27:59,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133229495] [2022-11-18 18:27:59,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:27:59,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:27:59,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:27:59,956 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2022-11-18 18:28:00,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:00,009 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2022-11-18 18:28:00,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:00,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 [2022-11-18 18:28:00,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:00,010 INFO L225 Difference]: With dead ends: 37 [2022-11-18 18:28:00,010 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 18:28:00,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:00,012 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:00,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 31 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:00,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 18:28:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 18:28:00,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 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) [2022-11-18 18:28:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2022-11-18 18:28:00,016 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 10 [2022-11-18 18:28:00,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:00,017 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2022-11-18 18:28:00,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2022-11-18 18:28:00,017 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-11-18 18:28:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:28:00,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:00,018 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:00,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:28:00,019 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:00,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:00,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1588573389, now seen corresponding path program 1 times [2022-11-18 18:28:00,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:00,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284113928] [2022-11-18 18:28:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:00,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284113928] [2022-11-18 18:28:00,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284113928] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:00,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108184680] [2022-11-18 18:28:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:00,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:00,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:00,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:28:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:28:00,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108184680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:00,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:00,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 18:28:00,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453332695] [2022-11-18 18:28:00,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:00,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:28:00,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:00,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:28:00,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:28:00,342 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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) [2022-11-18 18:28:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:00,504 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2022-11-18 18:28:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:28:00,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 18:28:00,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:00,512 INFO L225 Difference]: With dead ends: 82 [2022-11-18 18:28:00,512 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 18:28:00,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:28:00,513 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 54 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:00,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 73 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:00,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 18:28:00,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 46. [2022-11-18 18:28:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.358974358974359) internal successors, (53), 45 states have internal predecessors, (53), 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) [2022-11-18 18:28:00,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-11-18 18:28:00,533 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 12 [2022-11-18 18:28:00,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:00,533 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-11-18 18:28:00,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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) [2022-11-18 18:28:00,533 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-11-18 18:28:00,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 18:28:00,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:00,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:00,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 18:28:00,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 18:28:00,735 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:00,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:00,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1905635147, now seen corresponding path program 1 times [2022-11-18 18:28:00,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:00,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517274663] [2022-11-18 18:28:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:00,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517274663] [2022-11-18 18:28:00,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517274663] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:00,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532980053] [2022-11-18 18:28:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:00,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:00,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:00,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:28:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:28:00,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:00,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532980053] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:00,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:00,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 18:28:00,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825883382] [2022-11-18 18:28:00,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:00,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:28:00,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:00,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:28:00,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:28:00,966 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:01,110 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2022-11-18 18:28:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:28:01,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 18:28:01,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:01,112 INFO L225 Difference]: With dead ends: 82 [2022-11-18 18:28:01,112 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 18:28:01,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:28:01,113 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 50 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:01,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 69 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:01,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 18:28:01,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2022-11-18 18:28:01,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 47 states have internal predecessors, (53), 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) [2022-11-18 18:28:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-11-18 18:28:01,119 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 14 [2022-11-18 18:28:01,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:01,119 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-11-18 18:28:01,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,119 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-11-18 18:28:01,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 18:28:01,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:01,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:01,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:01,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 18:28:01,325 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:01,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1905680795, now seen corresponding path program 1 times [2022-11-18 18:28:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:01,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085651857] [2022-11-18 18:28:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:01,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:01,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:01,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085651857] [2022-11-18 18:28:01,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085651857] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:01,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100778219] [2022-11-18 18:28:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:01,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:01,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:01,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:01,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:28:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:01,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:28:01,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:01,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:01,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100778219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:01,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:01,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-18 18:28:01,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626444121] [2022-11-18 18:28:01,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:01,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 18:28:01,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:01,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 18:28:01,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:28:01,657 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 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) [2022-11-18 18:28:01,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:01,843 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-11-18 18:28:01,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:28:01,845 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 18:28:01,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:01,846 INFO L225 Difference]: With dead ends: 62 [2022-11-18 18:28:01,846 INFO L226 Difference]: Without dead ends: 61 [2022-11-18 18:28:01,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:28:01,847 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:01,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:01,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-18 18:28:01,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2022-11-18 18:28:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 50 states have internal predecessors, (56), 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) [2022-11-18 18:28:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-11-18 18:28:01,858 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 14 [2022-11-18 18:28:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:01,860 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-11-18 18:28:01,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 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) [2022-11-18 18:28:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-11-18 18:28:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 18:28:01,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:01,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:01,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:02,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 18:28:02,068 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:02,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:02,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1053437568, now seen corresponding path program 1 times [2022-11-18 18:28:02,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:02,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717624742] [2022-11-18 18:28:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:02,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:02,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:02,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717624742] [2022-11-18 18:28:02,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717624742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:02,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:02,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:28:02,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464978614] [2022-11-18 18:28:02,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:02,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:28:02,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:02,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:28:02,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:28:02,200 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:02,292 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2022-11-18 18:28:02,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:28:02,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 18:28:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:02,294 INFO L225 Difference]: With dead ends: 51 [2022-11-18 18:28:02,294 INFO L226 Difference]: Without dead ends: 50 [2022-11-18 18:28:02,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:28:02,295 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 39 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:02,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 42 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:02,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-18 18:28:02,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-18 18:28:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.25) internal successors, (55), 49 states have internal predecessors, (55), 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) [2022-11-18 18:28:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-11-18 18:28:02,299 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 15 [2022-11-18 18:28:02,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:02,300 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-11-18 18:28:02,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,300 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-11-18 18:28:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 18:28:02,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:02,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:02,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:28:02,301 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:02,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:02,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1703173689, now seen corresponding path program 1 times [2022-11-18 18:28:02,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:02,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595579379] [2022-11-18 18:28:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:02,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:28:02,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:02,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595579379] [2022-11-18 18:28:02,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595579379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:02,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:02,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:28:02,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162938362] [2022-11-18 18:28:02,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:02,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:02,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:02,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:02,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:02,382 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:02,441 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2022-11-18 18:28:02,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:28:02,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 18:28:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:02,442 INFO L225 Difference]: With dead ends: 50 [2022-11-18 18:28:02,443 INFO L226 Difference]: Without dead ends: 49 [2022-11-18 18:28:02,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:28:02,444 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:02,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:02,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-18 18:28:02,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-18 18:28:02,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 48 states have internal predecessors, (54), 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) [2022-11-18 18:28:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-18 18:28:02,449 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 16 [2022-11-18 18:28:02,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:02,449 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-18 18:28:02,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-18 18:28:02,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 18:28:02,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:02,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 18:28:02,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:28:02,451 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:02,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 101107939, now seen corresponding path program 1 times [2022-11-18 18:28:02,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:02,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050732528] [2022-11-18 18:28:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:02,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:02,482 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:02,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:02,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050732528] [2022-11-18 18:28:02,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050732528] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:02,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875178026] [2022-11-18 18:28:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:02,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:02,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:02,485 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:02,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:28:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:02,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:28:02,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:02,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:02,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875178026] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:02,632 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:02,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-18 18:28:02,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074532701] [2022-11-18 18:28:02,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:02,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:02,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:02,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:02,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:02,634 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-18 18:28:02,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:02,676 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2022-11-18 18:28:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:28:02,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 [2022-11-18 18:28:02,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:02,677 INFO L225 Difference]: With dead ends: 72 [2022-11-18 18:28:02,677 INFO L226 Difference]: Without dead ends: 71 [2022-11-18 18:28:02,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:02,678 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:02,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 65 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-18 18:28:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2022-11-18 18:28:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 states have internal predecessors, (55), 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) [2022-11-18 18:28:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-11-18 18:28:02,683 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 17 [2022-11-18 18:28:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:02,684 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-18 18:28:02,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-18 18:28:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-11-18 18:28:02,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 18:28:02,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:02,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:02,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:02,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 18:28:02,891 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:02,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1258776734, now seen corresponding path program 1 times [2022-11-18 18:28:02,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:02,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59086159] [2022-11-18 18:28:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:02,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:03,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:03,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59086159] [2022-11-18 18:28:03,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59086159] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:03,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624155190] [2022-11-18 18:28:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:03,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:03,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:03,022 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:03,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:28:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:28:03,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:03,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:28:03,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624155190] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:03,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:28:03,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 16 [2022-11-18 18:28:03,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779933196] [2022-11-18 18:28:03,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:03,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:03,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:03,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:28:03,433 INFO L87 Difference]: Start difference. First operand 52 states and 55 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) [2022-11-18 18:28:03,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:03,519 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-11-18 18:28:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:28:03,520 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 [2022-11-18 18:28:03,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:03,520 INFO L225 Difference]: With dead ends: 52 [2022-11-18 18:28:03,520 INFO L226 Difference]: Without dead ends: 45 [2022-11-18 18:28:03,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:28:03,522 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:03,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:03,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-18 18:28:03,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-18 18:28:03,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 44 states have internal predecessors, (46), 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) [2022-11-18 18:28:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2022-11-18 18:28:03,532 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 17 [2022-11-18 18:28:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:03,532 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2022-11-18 18:28:03,533 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) [2022-11-18 18:28:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2022-11-18 18:28:03,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 18:28:03,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:03,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:03,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:03,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:03,739 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:03,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:03,740 INFO L85 PathProgramCache]: Analyzing trace with hash -548396507, now seen corresponding path program 2 times [2022-11-18 18:28:03,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:03,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300890647] [2022-11-18 18:28:03,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:03,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:03,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:03,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300890647] [2022-11-18 18:28:03,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300890647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:03,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488900568] [2022-11-18 18:28:03,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:03,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:03,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:03,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:03,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:28:03,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:28:03,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:03,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 18:28:03,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:04,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:04,443 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:04,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488900568] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:04,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:04,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2022-11-18 18:28:04,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259332959] [2022-11-18 18:28:04,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:04,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-18 18:28:04,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:04,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-18 18:28:04,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-11-18 18:28:04,445 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 31 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 31 states have internal predecessors, (80), 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) [2022-11-18 18:28:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:04,784 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2022-11-18 18:28:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 18:28:04,785 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 31 states have internal predecessors, (80), 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 28 [2022-11-18 18:28:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:04,786 INFO L225 Difference]: With dead ends: 82 [2022-11-18 18:28:04,786 INFO L226 Difference]: Without dead ends: 69 [2022-11-18 18:28:04,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=370, Invalid=1610, Unknown=0, NotChecked=0, Total=1980 [2022-11-18 18:28:04,787 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 77 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:04,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 120 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-18 18:28:04,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2022-11-18 18:28:04,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 59 states have internal predecessors, (66), 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) [2022-11-18 18:28:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2022-11-18 18:28:04,794 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 28 [2022-11-18 18:28:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:04,794 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2022-11-18 18:28:04,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 31 states have internal predecessors, (80), 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) [2022-11-18 18:28:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-11-18 18:28:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-18 18:28:04,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:04,795 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-18 18:28:04,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:04,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 18:28:04,996 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:04,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:04,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1060243931, now seen corresponding path program 2 times [2022-11-18 18:28:04,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:04,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604160449] [2022-11-18 18:28:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:04,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:05,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:05,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604160449] [2022-11-18 18:28:05,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604160449] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:05,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383073548] [2022-11-18 18:28:05,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:05,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:05,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:05,137 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:05,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:28:05,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:28:05,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:05,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 18:28:05,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:05,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:05,446 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:05,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383073548] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:05,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:05,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-18 18:28:05,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530715947] [2022-11-18 18:28:05,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:05,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 18:28:05,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:05,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 18:28:05,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-18 18:28:05,449 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 states have internal predecessors, (64), 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) [2022-11-18 18:28:05,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:05,666 INFO L93 Difference]: Finished difference Result 106 states and 111 transitions. [2022-11-18 18:28:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 18:28:05,666 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 states have internal predecessors, (64), 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 33 [2022-11-18 18:28:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:05,667 INFO L225 Difference]: With dead ends: 106 [2022-11-18 18:28:05,667 INFO L226 Difference]: Without dead ends: 105 [2022-11-18 18:28:05,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-18 18:28:05,669 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 109 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:05,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 103 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:05,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-18 18:28:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 82. [2022-11-18 18:28:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 81 states have internal predecessors, (95), 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) [2022-11-18 18:28:05,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2022-11-18 18:28:05,676 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 33 [2022-11-18 18:28:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:05,676 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2022-11-18 18:28:05,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 states have internal predecessors, (64), 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) [2022-11-18 18:28:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2022-11-18 18:28:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 18:28:05,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:05,677 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-18 18:28:05,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:05,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:05,883 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:05,883 INFO L85 PathProgramCache]: Analyzing trace with hash -987166937, now seen corresponding path program 2 times [2022-11-18 18:28:05,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:05,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267144553] [2022-11-18 18:28:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:05,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:06,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:06,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267144553] [2022-11-18 18:28:06,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267144553] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:06,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111884428] [2022-11-18 18:28:06,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:06,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:06,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:06,066 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:06,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 18:28:06,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:28:06,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:06,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 18:28:06,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:06,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:06,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111884428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:06,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:06,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-18 18:28:06,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598664186] [2022-11-18 18:28:06,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:06,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 18:28:06,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:06,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 18:28:06,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-18 18:28:06,389 INFO L87 Difference]: Start difference. First operand 82 states and 95 transitions. Second operand has 22 states, 21 states have (on average 3.238095238095238) internal successors, (68), 22 states have internal predecessors, (68), 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) [2022-11-18 18:28:06,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:06,609 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2022-11-18 18:28:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 18:28:06,610 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.238095238095238) internal successors, (68), 22 states have internal predecessors, (68), 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 35 [2022-11-18 18:28:06,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:06,610 INFO L225 Difference]: With dead ends: 103 [2022-11-18 18:28:06,610 INFO L226 Difference]: Without dead ends: 102 [2022-11-18 18:28:06,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-18 18:28:06,612 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 93 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:06,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 126 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:06,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-18 18:28:06,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 84. [2022-11-18 18:28:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.15) internal successors, (92), 83 states have internal predecessors, (92), 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) [2022-11-18 18:28:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2022-11-18 18:28:06,619 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 35 [2022-11-18 18:28:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:06,619 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2022-11-18 18:28:06,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.238095238095238) internal successors, (68), 22 states have internal predecessors, (68), 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) [2022-11-18 18:28:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2022-11-18 18:28:06,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 18:28:06,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:06,621 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2022-11-18 18:28:06,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:06,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:06,827 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1049090767, now seen corresponding path program 2 times [2022-11-18 18:28:06,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:06,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310943961] [2022-11-18 18:28:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:06,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:06,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:06,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310943961] [2022-11-18 18:28:06,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310943961] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:06,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396527954] [2022-11-18 18:28:06,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:06,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:06,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:06,923 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:06,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 18:28:06,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:28:06,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:06,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:28:06,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:07,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:07,168 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:07,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396527954] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:07,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:07,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 18:28:07,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124628035] [2022-11-18 18:28:07,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:07,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:28:07,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:07,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:28:07,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:28:07,171 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 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) [2022-11-18 18:28:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:07,235 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2022-11-18 18:28:07,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:28:07,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 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 [2022-11-18 18:28:07,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:07,236 INFO L225 Difference]: With dead ends: 100 [2022-11-18 18:28:07,236 INFO L226 Difference]: Without dead ends: 99 [2022-11-18 18:28:07,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:28:07,237 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:07,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 105 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-18 18:28:07,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2022-11-18 18:28:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.0843373493975903) internal successors, (90), 86 states have internal predecessors, (90), 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) [2022-11-18 18:28:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2022-11-18 18:28:07,245 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 38 [2022-11-18 18:28:07,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:07,245 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2022-11-18 18:28:07,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 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) [2022-11-18 18:28:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2022-11-18 18:28:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-18 18:28:07,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:07,247 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:07,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:07,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-18 18:28:07,452 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:07,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:07,453 INFO L85 PathProgramCache]: Analyzing trace with hash -882607707, now seen corresponding path program 3 times [2022-11-18 18:28:07,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:07,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186601247] [2022-11-18 18:28:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:07,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:07,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:07,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186601247] [2022-11-18 18:28:07,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186601247] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:07,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791954661] [2022-11-18 18:28:07,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:28:07,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:07,780 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:07,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 18:28:07,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-18 18:28:07,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:07,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-18 18:28:07,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:08,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:09,087 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:09,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791954661] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:09,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:09,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 62 [2022-11-18 18:28:09,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740768070] [2022-11-18 18:28:09,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:09,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-11-18 18:28:09,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:09,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-11-18 18:28:09,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=591, Invalid=3315, Unknown=0, NotChecked=0, Total=3906 [2022-11-18 18:28:09,090 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 63 states, 62 states have (on average 2.6451612903225805) internal successors, (164), 63 states have internal predecessors, (164), 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) [2022-11-18 18:28:09,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:09,995 INFO L93 Difference]: Finished difference Result 156 states and 163 transitions. [2022-11-18 18:28:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-18 18:28:09,998 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.6451612903225805) internal successors, (164), 63 states have internal predecessors, (164), 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 56 [2022-11-18 18:28:09,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:09,999 INFO L225 Difference]: With dead ends: 156 [2022-11-18 18:28:09,999 INFO L226 Difference]: Without dead ends: 131 [2022-11-18 18:28:10,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3544 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1476, Invalid=7454, Unknown=0, NotChecked=0, Total=8930 [2022-11-18 18:28:10,004 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 251 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:10,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 190 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:28:10,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-18 18:28:10,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2022-11-18 18:28:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.1428571428571428) internal successors, (128), 115 states have internal predecessors, (128), 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) [2022-11-18 18:28:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2022-11-18 18:28:10,011 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 56 [2022-11-18 18:28:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:10,011 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2022-11-18 18:28:10,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.6451612903225805) internal successors, (164), 63 states have internal predecessors, (164), 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) [2022-11-18 18:28:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2022-11-18 18:28:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-18 18:28:10,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:10,012 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-18 18:28:10,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:10,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-18 18:28:10,218 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:10,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1200827675, now seen corresponding path program 3 times [2022-11-18 18:28:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:10,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120528671] [2022-11-18 18:28:10,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:10,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:10,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120528671] [2022-11-18 18:28:10,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120528671] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668002974] [2022-11-18 18:28:10,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:28:10,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:10,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:10,685 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:10,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 18:28:10,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 18:28:10,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:10,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 18:28:10,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:10,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:11,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668002974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:11,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:11,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-11-18 18:28:11,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620032731] [2022-11-18 18:28:11,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:11,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-18 18:28:11,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:11,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-18 18:28:11,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-18 18:28:11,608 INFO L87 Difference]: Start difference. First operand 116 states and 128 transitions. Second operand has 46 states, 45 states have (on average 3.2888888888888888) internal successors, (148), 46 states have internal predecessors, (148), 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) [2022-11-18 18:28:12,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:12,207 INFO L93 Difference]: Finished difference Result 218 states and 229 transitions. [2022-11-18 18:28:12,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-18 18:28:12,208 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.2888888888888888) internal successors, (148), 46 states have internal predecessors, (148), 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 75 [2022-11-18 18:28:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:12,209 INFO L225 Difference]: With dead ends: 218 [2022-11-18 18:28:12,209 INFO L226 Difference]: Without dead ends: 217 [2022-11-18 18:28:12,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-11-18 18:28:12,211 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 283 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:12,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 235 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:28:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-18 18:28:12,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 166. [2022-11-18 18:28:12,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 162 states have (on average 1.2037037037037037) internal successors, (195), 165 states have internal predecessors, (195), 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) [2022-11-18 18:28:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 195 transitions. [2022-11-18 18:28:12,228 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 195 transitions. Word has length 75 [2022-11-18 18:28:12,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:12,228 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 195 transitions. [2022-11-18 18:28:12,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.2888888888888888) internal successors, (148), 46 states have internal predecessors, (148), 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) [2022-11-18 18:28:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 195 transitions. [2022-11-18 18:28:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 18:28:12,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:12,231 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-18 18:28:12,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:12,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:12,437 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:12,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1350808551, now seen corresponding path program 3 times [2022-11-18 18:28:12,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:12,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326965558] [2022-11-18 18:28:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:12,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:12,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:12,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326965558] [2022-11-18 18:28:12,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326965558] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:12,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542051992] [2022-11-18 18:28:12,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:28:12,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:12,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:12,977 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:12,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 18:28:13,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 18:28:13,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:13,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 18:28:13,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:13,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:13,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542051992] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:13,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:13,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-11-18 18:28:13,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654415860] [2022-11-18 18:28:13,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:13,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-18 18:28:13,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:13,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-18 18:28:13,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-18 18:28:13,876 INFO L87 Difference]: Start difference. First operand 166 states and 195 transitions. Second operand has 46 states, 45 states have (on average 3.3777777777777778) internal successors, (152), 46 states have internal predecessors, (152), 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) [2022-11-18 18:28:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:14,468 INFO L93 Difference]: Finished difference Result 209 states and 220 transitions. [2022-11-18 18:28:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-18 18:28:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.3777777777777778) internal successors, (152), 46 states have internal predecessors, (152), 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 77 [2022-11-18 18:28:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:14,470 INFO L225 Difference]: With dead ends: 209 [2022-11-18 18:28:14,470 INFO L226 Difference]: Without dead ends: 208 [2022-11-18 18:28:14,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-11-18 18:28:14,472 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 247 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:14,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 178 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-18 18:28:14,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 168. [2022-11-18 18:28:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.1341463414634145) internal successors, (186), 167 states have internal predecessors, (186), 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) [2022-11-18 18:28:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 186 transitions. [2022-11-18 18:28:14,483 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 186 transitions. Word has length 77 [2022-11-18 18:28:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:14,483 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 186 transitions. [2022-11-18 18:28:14,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.3777777777777778) internal successors, (152), 46 states have internal predecessors, (152), 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) [2022-11-18 18:28:14,484 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 186 transitions. [2022-11-18 18:28:14,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-18 18:28:14,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:14,485 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2022-11-18 18:28:14,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:14,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:14,690 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1905966991, now seen corresponding path program 3 times [2022-11-18 18:28:14,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:14,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193508893] [2022-11-18 18:28:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:14,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:14,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:14,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193508893] [2022-11-18 18:28:14,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193508893] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:14,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447438928] [2022-11-18 18:28:14,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:28:14,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:14,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:14,931 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:14,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 18:28:15,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 18:28:15,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:15,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 18:28:15,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:15,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:15,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447438928] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:15,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:15,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-18 18:28:15,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512504574] [2022-11-18 18:28:15,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:15,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 18:28:15,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 18:28:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:28:15,513 INFO L87 Difference]: Start difference. First operand 168 states and 186 transitions. Second operand has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 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) [2022-11-18 18:28:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:15,618 INFO L93 Difference]: Finished difference Result 200 states and 211 transitions. [2022-11-18 18:28:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 18:28:15,624 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 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 80 [2022-11-18 18:28:15,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:15,626 INFO L225 Difference]: With dead ends: 200 [2022-11-18 18:28:15,626 INFO L226 Difference]: Without dead ends: 199 [2022-11-18 18:28:15,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:28:15,628 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 68 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:15,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 175 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:15,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-18 18:28:15,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 171. [2022-11-18 18:28:15,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.0658682634730539) internal successors, (178), 170 states have internal predecessors, (178), 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) [2022-11-18 18:28:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2022-11-18 18:28:15,642 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 80 [2022-11-18 18:28:15,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:15,643 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2022-11-18 18:28:15,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 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) [2022-11-18 18:28:15,643 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2022-11-18 18:28:15,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-18 18:28:15,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:15,644 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:15,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:15,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 18:28:15,856 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:15,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:15,857 INFO L85 PathProgramCache]: Analyzing trace with hash 423258277, now seen corresponding path program 4 times [2022-11-18 18:28:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:15,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260621082] [2022-11-18 18:28:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:16,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260621082] [2022-11-18 18:28:16,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260621082] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:16,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277592694] [2022-11-18 18:28:16,850 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 18:28:16,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:16,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:16,852 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:16,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 18:28:16,940 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 18:28:16,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:16,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-18 18:28:16,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:18,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:20,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277592694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:20,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:20,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 47, 47] total 126 [2022-11-18 18:28:20,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242151328] [2022-11-18 18:28:20,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:20,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-11-18 18:28:20,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:20,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-11-18 18:28:20,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2267, Invalid=13735, Unknown=0, NotChecked=0, Total=16002 [2022-11-18 18:28:20,179 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand has 127 states, 126 states have (on average 2.634920634920635) internal successors, (332), 127 states have internal predecessors, (332), 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) [2022-11-18 18:28:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:22,713 INFO L93 Difference]: Finished difference Result 304 states and 319 transitions. [2022-11-18 18:28:22,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-18 18:28:22,715 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 126 states have (on average 2.634920634920635) internal successors, (332), 127 states have internal predecessors, (332), 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 112 [2022-11-18 18:28:22,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:22,716 INFO L225 Difference]: With dead ends: 304 [2022-11-18 18:28:22,716 INFO L226 Difference]: Without dead ends: 255 [2022-11-18 18:28:22,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16296 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5896, Invalid=31934, Unknown=0, NotChecked=0, Total=37830 [2022-11-18 18:28:22,724 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 558 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:22,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 241 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 18:28:22,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-11-18 18:28:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 228. [2022-11-18 18:28:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.125) internal successors, (252), 227 states have internal predecessors, (252), 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) [2022-11-18 18:28:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 252 transitions. [2022-11-18 18:28:22,737 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 252 transitions. Word has length 112 [2022-11-18 18:28:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:22,738 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 252 transitions. [2022-11-18 18:28:22,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 126 states have (on average 2.634920634920635) internal successors, (332), 127 states have internal predecessors, (332), 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) [2022-11-18 18:28:22,738 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 252 transitions. [2022-11-18 18:28:22,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-18 18:28:22,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:22,740 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-18 18:28:22,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-18 18:28:22,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-18 18:28:22,947 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:22,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:22,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1562985371, now seen corresponding path program 4 times [2022-11-18 18:28:22,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:22,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997211485] [2022-11-18 18:28:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:22,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:24,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:24,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997211485] [2022-11-18 18:28:24,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997211485] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:24,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684165430] [2022-11-18 18:28:24,798 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 18:28:24,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:24,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:24,799 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:24,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 18:28:24,925 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 18:28:24,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:24,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 18:28:24,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:25,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:27,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684165430] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:27,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:27,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-11-18 18:28:27,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83847001] [2022-11-18 18:28:27,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:27,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-18 18:28:27,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-18 18:28:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-18 18:28:27,349 INFO L87 Difference]: Start difference. First operand 228 states and 252 transitions. Second operand has 94 states, 93 states have (on average 3.3978494623655915) internal successors, (316), 94 states have internal predecessors, (316), 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) [2022-11-18 18:28:29,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:29,294 INFO L93 Difference]: Finished difference Result 442 states and 465 transitions. [2022-11-18 18:28:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-18 18:28:29,294 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.3978494623655915) internal successors, (316), 94 states have internal predecessors, (316), 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 159 [2022-11-18 18:28:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:29,296 INFO L225 Difference]: With dead ends: 442 [2022-11-18 18:28:29,297 INFO L226 Difference]: Without dead ends: 441 [2022-11-18 18:28:29,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-11-18 18:28:29,300 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 896 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:29,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 355 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:28:29,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-18 18:28:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 334. [2022-11-18 18:28:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 330 states have (on average 1.196969696969697) internal successors, (395), 333 states have internal predecessors, (395), 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) [2022-11-18 18:28:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 395 transitions. [2022-11-18 18:28:29,318 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 395 transitions. Word has length 159 [2022-11-18 18:28:29,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:29,319 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 395 transitions. [2022-11-18 18:28:29,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.3978494623655915) internal successors, (316), 94 states have internal predecessors, (316), 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) [2022-11-18 18:28:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 395 transitions. [2022-11-18 18:28:29,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-18 18:28:29,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:29,321 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-18 18:28:29,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:29,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 18:28:29,528 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1209613671, now seen corresponding path program 4 times [2022-11-18 18:28:29,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:29,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210962051] [2022-11-18 18:28:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:29,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:31,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:31,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:31,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210962051] [2022-11-18 18:28:31,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210962051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:31,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844286702] [2022-11-18 18:28:31,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 18:28:31,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:31,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:31,062 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:31,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 18:28:31,187 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 18:28:31,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:31,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-18 18:28:31,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:31,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:33,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844286702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:33,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:33,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-11-18 18:28:33,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486598278] [2022-11-18 18:28:33,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:33,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-18 18:28:33,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:33,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-18 18:28:33,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-18 18:28:33,589 INFO L87 Difference]: Start difference. First operand 334 states and 395 transitions. Second operand has 94 states, 93 states have (on average 3.4408602150537635) internal successors, (320), 94 states have internal predecessors, (320), 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) [2022-11-18 18:28:35,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:35,426 INFO L93 Difference]: Finished difference Result 421 states and 444 transitions. [2022-11-18 18:28:35,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-18 18:28:35,427 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4408602150537635) internal successors, (320), 94 states have internal predecessors, (320), 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 161 [2022-11-18 18:28:35,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:35,428 INFO L225 Difference]: With dead ends: 421 [2022-11-18 18:28:35,429 INFO L226 Difference]: Without dead ends: 420 [2022-11-18 18:28:35,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-11-18 18:28:35,431 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 587 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:35,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 312 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:28:35,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-18 18:28:35,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 336. [2022-11-18 18:28:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 332 states have (on average 1.1265060240963856) internal successors, (374), 335 states have internal predecessors, (374), 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) [2022-11-18 18:28:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 374 transitions. [2022-11-18 18:28:35,449 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 374 transitions. Word has length 161 [2022-11-18 18:28:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:35,449 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 374 transitions. [2022-11-18 18:28:35,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4408602150537635) internal successors, (320), 94 states have internal predecessors, (320), 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) [2022-11-18 18:28:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 374 transitions. [2022-11-18 18:28:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-18 18:28:35,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:35,452 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1] [2022-11-18 18:28:35,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:35,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 18:28:35,658 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:35,658 INFO L85 PathProgramCache]: Analyzing trace with hash 825313009, now seen corresponding path program 4 times [2022-11-18 18:28:35,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:35,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020665659] [2022-11-18 18:28:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:35,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:36,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:36,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:36,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020665659] [2022-11-18 18:28:36,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020665659] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:36,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806222478] [2022-11-18 18:28:36,369 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 18:28:36,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:36,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:36,370 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:36,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 18:28:36,481 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 18:28:36,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:36,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 18:28:36,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:36,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:36,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:37,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806222478] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:37,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:37,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-18 18:28:37,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806351264] [2022-11-18 18:28:37,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:37,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 18:28:37,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:37,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 18:28:37,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 18:28:37,706 INFO L87 Difference]: Start difference. First operand 336 states and 374 transitions. Second operand has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 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) [2022-11-18 18:28:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:37,903 INFO L93 Difference]: Finished difference Result 400 states and 423 transitions. [2022-11-18 18:28:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 18:28:37,904 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 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 164 [2022-11-18 18:28:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:37,906 INFO L225 Difference]: With dead ends: 400 [2022-11-18 18:28:37,906 INFO L226 Difference]: Without dead ends: 399 [2022-11-18 18:28:37,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 18:28:37,907 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 116 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:37,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 335 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:37,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-18 18:28:37,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 339. [2022-11-18 18:28:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 335 states have (on average 1.0567164179104478) internal successors, (354), 338 states have internal predecessors, (354), 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) [2022-11-18 18:28:37,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 354 transitions. [2022-11-18 18:28:37,925 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 354 transitions. Word has length 164 [2022-11-18 18:28:37,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:37,926 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 354 transitions. [2022-11-18 18:28:37,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 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) [2022-11-18 18:28:37,927 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 354 transitions. [2022-11-18 18:28:37,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-18 18:28:37,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:37,929 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:37,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:38,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 18:28:38,136 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:28:38,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:38,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1746618021, now seen corresponding path program 5 times [2022-11-18 18:28:38,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:38,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620214795] [2022-11-18 18:28:38,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:38,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:41,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:41,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620214795] [2022-11-18 18:28:41,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620214795] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:41,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110606833] [2022-11-18 18:28:41,443 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 18:28:41,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:41,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:41,446 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:41,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 18:28:41,759 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-18 18:28:41,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:41,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 127 conjunts are in the unsatisfiable core [2022-11-18 18:28:41,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:45,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:51,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110606833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:51,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:51,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 95, 95] total 254 [2022-11-18 18:28:51,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888175327] [2022-11-18 18:28:51,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:51,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 255 states [2022-11-18 18:28:51,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:51,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 255 interpolants. [2022-11-18 18:28:51,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8883, Invalid=55887, Unknown=0, NotChecked=0, Total=64770 [2022-11-18 18:28:51,545 INFO L87 Difference]: Start difference. First operand 339 states and 354 transitions. Second operand has 255 states, 254 states have (on average 2.62992125984252) internal successors, (668), 255 states have internal predecessors, (668), 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) [2022-11-18 18:29:00,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:29:00,149 INFO L93 Difference]: Finished difference Result 600 states and 631 transitions. [2022-11-18 18:29:00,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-11-18 18:29:00,150 INFO L78 Accepts]: Start accepts. Automaton has has 255 states, 254 states have (on average 2.62992125984252) internal successors, (668), 255 states have internal predecessors, (668), 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 224 [2022-11-18 18:29:00,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:29:00,152 INFO L225 Difference]: With dead ends: 600 [2022-11-18 18:29:00,152 INFO L226 Difference]: Without dead ends: 503 [2022-11-18 18:29:00,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69640 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=23568, Invalid=132062, Unknown=0, NotChecked=0, Total=155630 [2022-11-18 18:29:00,163 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1414 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:29:00,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 409 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 18:29:00,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-11-18 18:29:00,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 452. [2022-11-18 18:29:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 448 states have (on average 1.1160714285714286) internal successors, (500), 451 states have internal predecessors, (500), 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) [2022-11-18 18:29:00,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 500 transitions. [2022-11-18 18:29:00,183 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 500 transitions. Word has length 224 [2022-11-18 18:29:00,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:29:00,183 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 500 transitions. [2022-11-18 18:29:00,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 255 states, 254 states have (on average 2.62992125984252) internal successors, (668), 255 states have internal predecessors, (668), 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) [2022-11-18 18:29:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 500 transitions. [2022-11-18 18:29:00,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-18 18:29:00,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:29:00,186 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2022-11-18 18:29:00,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:00,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:00,393 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:29:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:00,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1361792869, now seen corresponding path program 5 times [2022-11-18 18:29:00,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:00,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468028555] [2022-11-18 18:29:00,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:00,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:06,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:06,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468028555] [2022-11-18 18:29:06,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468028555] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:06,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929863654] [2022-11-18 18:29:06,639 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 18:29:06,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:06,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:06,640 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:06,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 18:29:07,231 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 18:29:07,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:29:07,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 18:29:07,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:07,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:29:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:15,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929863654] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:29:15,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:29:15,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-11-18 18:29:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628209391] [2022-11-18 18:29:15,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:29:15,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-18 18:29:15,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:15,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-18 18:29:15,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-18 18:29:15,499 INFO L87 Difference]: Start difference. First operand 452 states and 500 transitions. Second operand has 190 states, 189 states have (on average 3.4497354497354498) internal successors, (652), 190 states have internal predecessors, (652), 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) [2022-11-18 18:29:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:29:23,019 INFO L93 Difference]: Finished difference Result 890 states and 937 transitions. [2022-11-18 18:29:23,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-11-18 18:29:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4497354497354498) internal successors, (652), 190 states have internal predecessors, (652), 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 327 [2022-11-18 18:29:23,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:29:23,023 INFO L225 Difference]: With dead ends: 890 [2022-11-18 18:29:23,023 INFO L226 Difference]: Without dead ends: 889 [2022-11-18 18:29:23,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-11-18 18:29:23,030 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1841 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:29:23,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 617 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 18:29:23,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-11-18 18:29:23,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 670. [2022-11-18 18:29:23,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 666 states have (on average 1.1936936936936937) internal successors, (795), 669 states have internal predecessors, (795), 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) [2022-11-18 18:29:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 795 transitions. [2022-11-18 18:29:23,064 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 795 transitions. Word has length 327 [2022-11-18 18:29:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:29:23,065 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 795 transitions. [2022-11-18 18:29:23,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4497354497354498) internal successors, (652), 190 states have internal predecessors, (652), 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) [2022-11-18 18:29:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 795 transitions. [2022-11-18 18:29:23,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-18 18:29:23,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:29:23,068 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-11-18 18:29:23,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:23,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-18 18:29:23,280 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:29:23,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1282076569, now seen corresponding path program 5 times [2022-11-18 18:29:23,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:23,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345364708] [2022-11-18 18:29:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:23,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:29,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:29,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345364708] [2022-11-18 18:29:29,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345364708] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:29,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722737287] [2022-11-18 18:29:29,108 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 18:29:29,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:29,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:29,109 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:29,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 18:29:29,749 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 18:29:29,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:29:29,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-18 18:29:29,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:30,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:29:38,146 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:38,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722737287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:29:38,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:29:38,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-11-18 18:29:38,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66504108] [2022-11-18 18:29:38,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:29:38,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-18 18:29:38,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:38,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-18 18:29:38,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-18 18:29:38,155 INFO L87 Difference]: Start difference. First operand 670 states and 795 transitions. Second operand has 190 states, 189 states have (on average 3.4708994708994707) internal successors, (656), 190 states have internal predecessors, (656), 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) [2022-11-18 18:29:45,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:29:45,414 INFO L93 Difference]: Finished difference Result 845 states and 892 transitions. [2022-11-18 18:29:45,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-11-18 18:29:45,414 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4708994708994707) internal successors, (656), 190 states have internal predecessors, (656), 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 329 [2022-11-18 18:29:45,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:29:45,417 INFO L225 Difference]: With dead ends: 845 [2022-11-18 18:29:45,417 INFO L226 Difference]: Without dead ends: 844 [2022-11-18 18:29:45,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-11-18 18:29:45,422 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1404 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:29:45,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 559 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 18:29:45,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-11-18 18:29:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 672. [2022-11-18 18:29:45,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 668 states have (on average 1.122754491017964) internal successors, (750), 671 states have internal predecessors, (750), 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) [2022-11-18 18:29:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 750 transitions. [2022-11-18 18:29:45,454 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 750 transitions. Word has length 329 [2022-11-18 18:29:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:29:45,455 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 750 transitions. [2022-11-18 18:29:45,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4708994708994707) internal successors, (656), 190 states have internal predecessors, (656), 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) [2022-11-18 18:29:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 750 transitions. [2022-11-18 18:29:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-11-18 18:29:45,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:29:45,458 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 46, 1, 1, 1, 1] [2022-11-18 18:29:45,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:45,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:45,665 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:29:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash 801149937, now seen corresponding path program 5 times [2022-11-18 18:29:45,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:45,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006993323] [2022-11-18 18:29:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:45,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:47,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:47,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006993323] [2022-11-18 18:29:47,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006993323] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:47,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276128733] [2022-11-18 18:29:47,934 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 18:29:47,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:47,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:47,936 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:47,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 18:29:48,524 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 18:29:48,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:29:48,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 18:29:48,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:48,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:29:52,331 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:52,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276128733] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:29:52,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:29:52,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-18 18:29:52,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804973957] [2022-11-18 18:29:52,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:29:52,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-18 18:29:52,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:52,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-18 18:29:52,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 18:29:52,337 INFO L87 Difference]: Start difference. First operand 672 states and 750 transitions. Second operand has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 96 states have internal predecessors, (662), 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) [2022-11-18 18:29:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:29:52,908 INFO L93 Difference]: Finished difference Result 800 states and 847 transitions. [2022-11-18 18:29:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-18 18:29:52,908 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 96 states have internal predecessors, (662), 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 332 [2022-11-18 18:29:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:29:52,912 INFO L225 Difference]: With dead ends: 800 [2022-11-18 18:29:52,912 INFO L226 Difference]: Without dead ends: 799 [2022-11-18 18:29:52,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 18:29:52,914 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 368 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:29:52,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 640 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:29:52,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2022-11-18 18:29:52,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 675. [2022-11-18 18:29:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 671 states have (on average 1.052160953800298) internal successors, (706), 674 states have internal predecessors, (706), 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) [2022-11-18 18:29:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 706 transitions. [2022-11-18 18:29:52,949 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 706 transitions. Word has length 332 [2022-11-18 18:29:52,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:29:52,950 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 706 transitions. [2022-11-18 18:29:52,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 96 states have internal predecessors, (662), 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) [2022-11-18 18:29:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 706 transitions. [2022-11-18 18:29:52,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-11-18 18:29:52,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:29:52,954 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:52,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:53,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:53,161 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:29:53,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:53,162 INFO L85 PathProgramCache]: Analyzing trace with hash 917570213, now seen corresponding path program 6 times [2022-11-18 18:29:53,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:53,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587080435] [2022-11-18 18:29:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:53,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:30:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:30:02,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:30:02,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587080435] [2022-11-18 18:30:02,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587080435] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:30:02,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069534566] [2022-11-18 18:30:02,975 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 18:30:02,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:30:02,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:30:02,982 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:30:03,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 18:30:03,852 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-11-18 18:30:03,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:30:03,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 255 conjunts are in the unsatisfiable core [2022-11-18 18:30:03,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:30:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:30:17,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:30:38,761 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:30:38,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069534566] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:30:38,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:30:38,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 191, 191] total 510 [2022-11-18 18:30:38,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902711984] [2022-11-18 18:30:38,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:30:38,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 511 states [2022-11-18 18:30:38,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:30:38,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 511 interpolants. [2022-11-18 18:30:38,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35171, Invalid=225439, Unknown=0, NotChecked=0, Total=260610 [2022-11-18 18:30:38,789 INFO L87 Difference]: Start difference. First operand 675 states and 706 transitions. Second operand has 511 states, 510 states have (on average 2.627450980392157) internal successors, (1340), 511 states have internal predecessors, (1340), 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) [2022-11-18 18:31:15,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:31:15,107 INFO L93 Difference]: Finished difference Result 1192 states and 1255 transitions. [2022-11-18 18:31:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 413 states. [2022-11-18 18:31:15,109 INFO L78 Accepts]: Start accepts. Automaton has has 511 states, 510 states have (on average 2.627450980392157) internal successors, (1340), 511 states have internal predecessors, (1340), 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 448 [2022-11-18 18:31:15,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:31:15,113 INFO L225 Difference]: With dead ends: 1192 [2022-11-18 18:31:15,113 INFO L226 Difference]: Without dead ends: 999 [2022-11-18 18:31:15,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1308 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 793 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287688 ImplicationChecksByTransitivity, 64.5s TimeCoverageRelationStatistics Valid=94240, Invalid=536990, Unknown=0, NotChecked=0, Total=631230 [2022-11-18 18:31:15,148 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3279 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:31:15,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3279 Valid, 736 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-18 18:31:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-11-18 18:31:15,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 900. [2022-11-18 18:31:15,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 896 states have (on average 1.1116071428571428) internal successors, (996), 899 states have internal predecessors, (996), 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) [2022-11-18 18:31:15,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 996 transitions. [2022-11-18 18:31:15,190 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 996 transitions. Word has length 448 [2022-11-18 18:31:15,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:31:15,190 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 996 transitions. [2022-11-18 18:31:15,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 511 states, 510 states have (on average 2.627450980392157) internal successors, (1340), 511 states have internal predecessors, (1340), 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) [2022-11-18 18:31:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 996 transitions. [2022-11-18 18:31:15,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2022-11-18 18:31:15,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:31:15,196 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2022-11-18 18:31:15,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-18 18:31:15,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-18 18:31:15,405 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:31:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:31:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2108197531, now seen corresponding path program 6 times [2022-11-18 18:31:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:31:15,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837584221] [2022-11-18 18:31:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:31:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:31:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:31:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:31:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:31:38,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837584221] [2022-11-18 18:31:38,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837584221] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:31:38,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892338295] [2022-11-18 18:31:38,486 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 18:31:38,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:31:38,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:31:38,487 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:31:38,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 18:31:40,908 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-18 18:31:40,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:31:40,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-18 18:31:40,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:31:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:31:42,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:32:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:13,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892338295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:32:13,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:32:13,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2022-11-18 18:32:13,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118318222] [2022-11-18 18:32:13,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:32:13,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-11-18 18:32:13,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:13,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-11-18 18:32:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-11-18 18:32:13,576 INFO L87 Difference]: Start difference. First operand 900 states and 996 transitions. Second operand has 382 states, 381 states have (on average 3.4750656167979) internal successors, (1324), 382 states have internal predecessors, (1324), 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) [2022-11-18 18:32:50,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:32:50,664 INFO L93 Difference]: Finished difference Result 1786 states and 1881 transitions. [2022-11-18 18:32:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-11-18 18:32:50,664 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 3.4750656167979) internal successors, (1324), 382 states have internal predecessors, (1324), 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 663 [2022-11-18 18:32:50,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:32:50,671 INFO L225 Difference]: With dead ends: 1786 [2022-11-18 18:32:50,671 INFO L226 Difference]: Without dead ends: 1785 [2022-11-18 18:32:50,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1705 GetRequests, 1135 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 62.4s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2022-11-18 18:32:50,690 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4267 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4267 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:32:50,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4267 Valid, 1193 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 18:32:50,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2022-11-18 18:32:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1342. [2022-11-18 18:32:50,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1338 states have (on average 1.1920777279521675) internal successors, (1595), 1341 states have internal predecessors, (1595), 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) [2022-11-18 18:32:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1595 transitions. [2022-11-18 18:32:50,748 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1595 transitions. Word has length 663 [2022-11-18 18:32:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:32:50,750 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1595 transitions. [2022-11-18 18:32:50,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 3.4750656167979) internal successors, (1324), 382 states have internal predecessors, (1324), 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) [2022-11-18 18:32:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1595 transitions. [2022-11-18 18:32:50,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-11-18 18:32:50,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:50,756 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-11-18 18:32:50,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-18 18:32:50,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-18 18:32:50,964 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:32:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:50,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1246738023, now seen corresponding path program 6 times [2022-11-18 18:32:50,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:50,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201951953] [2022-11-18 18:32:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:50,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:13,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:13,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201951953] [2022-11-18 18:33:13,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201951953] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:33:13,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679024768] [2022-11-18 18:33:13,680 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 18:33:13,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:33:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:33:13,681 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:33:13,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 18:33:16,050 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-18 18:33:16,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:33:16,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1641 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-18 18:33:16,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:33:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:16,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:33:47,199 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:47,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679024768] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:33:47,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:33:47,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2022-11-18 18:33:47,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156956130] [2022-11-18 18:33:47,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:33:47,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-11-18 18:33:47,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-11-18 18:33:47,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-11-18 18:33:47,220 INFO L87 Difference]: Start difference. First operand 1342 states and 1595 transitions. Second operand has 382 states, 381 states have (on average 3.4855643044619424) internal successors, (1328), 382 states have internal predecessors, (1328), 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) [2022-11-18 18:34:23,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:23,500 INFO L93 Difference]: Finished difference Result 1693 states and 1788 transitions. [2022-11-18 18:34:23,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-11-18 18:34:23,500 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 3.4855643044619424) internal successors, (1328), 382 states have internal predecessors, (1328), 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 665 [2022-11-18 18:34:23,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:23,505 INFO L225 Difference]: With dead ends: 1693 [2022-11-18 18:34:23,505 INFO L226 Difference]: Without dead ends: 1692 [2022-11-18 18:34:23,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1709 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 61.6s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2022-11-18 18:34:23,522 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3418 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:23,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 1064 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 18:34:23,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-11-18 18:34:23,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1344. [2022-11-18 18:34:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1340 states have (on average 1.1208955223880597) internal successors, (1502), 1343 states have internal predecessors, (1502), 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) [2022-11-18 18:34:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1502 transitions. [2022-11-18 18:34:23,579 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1502 transitions. Word has length 665 [2022-11-18 18:34:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:23,580 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1502 transitions. [2022-11-18 18:34:23,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 3.4855643044619424) internal successors, (1328), 382 states have internal predecessors, (1328), 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) [2022-11-18 18:34:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1502 transitions. [2022-11-18 18:34:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2022-11-18 18:34:23,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:23,586 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 94, 1, 1, 1, 1] [2022-11-18 18:34:23,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-11-18 18:34:23,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-18 18:34:23,794 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:34:23,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1304678927, now seen corresponding path program 6 times [2022-11-18 18:34:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:23,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658867762] [2022-11-18 18:34:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:34:31,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:31,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658867762] [2022-11-18 18:34:31,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658867762] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:34:31,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699099422] [2022-11-18 18:34:31,443 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 18:34:31,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:34:31,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:31,444 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:34:31,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-18 18:34:33,910 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-18 18:34:33,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:34:33,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 18:34:33,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:34:34,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:34:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:34:47,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699099422] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:34:47,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:34:47,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-18 18:34:47,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930569593] [2022-11-18 18:34:47,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:34:47,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-18 18:34:47,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:47,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-18 18:34:47,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 18:34:47,066 INFO L87 Difference]: Start difference. First operand 1344 states and 1502 transitions. Second operand has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 192 states have internal predecessors, (1334), 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) [2022-11-18 18:34:49,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:49,386 INFO L93 Difference]: Finished difference Result 1600 states and 1695 transitions. [2022-11-18 18:34:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-18 18:34:49,387 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 192 states have internal predecessors, (1334), 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 668 [2022-11-18 18:34:49,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:49,391 INFO L225 Difference]: With dead ends: 1600 [2022-11-18 18:34:49,391 INFO L226 Difference]: Without dead ends: 1599 [2022-11-18 18:34:49,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1240 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 18:34:49,393 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 844 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:49,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1269 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 18:34:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2022-11-18 18:34:49,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1347. [2022-11-18 18:34:49,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1343 states have (on average 1.0498883097542815) internal successors, (1410), 1346 states have internal predecessors, (1410), 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) [2022-11-18 18:34:49,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1410 transitions. [2022-11-18 18:34:49,451 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1410 transitions. Word has length 668 [2022-11-18 18:34:49,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:49,452 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 1410 transitions. [2022-11-18 18:34:49,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 192 states have internal predecessors, (1334), 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) [2022-11-18 18:34:49,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1410 transitions. [2022-11-18 18:34:49,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2022-11-18 18:34:49,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:49,461 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:49,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-11-18 18:34:49,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-18 18:34:49,670 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 18:34:49,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:49,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1221821787, now seen corresponding path program 7 times [2022-11-18 18:34:49,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:49,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668167278] [2022-11-18 18:34:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:49,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:34,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:34,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668167278] [2022-11-18 18:35:34,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668167278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:35:34,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659594173] [2022-11-18 18:35:34,199 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 18:35:34,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:35:34,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:35:34,204 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:35:34,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c7d1f7-5360-46d4-b2b5-22c42206d7bd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-18 18:35:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:34,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 511 conjunts are in the unsatisfiable core [2022-11-18 18:35:34,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:21,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:37:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:43,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659594173] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:37:43,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:37:43,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 383, 383] total 1022 [2022-11-18 18:37:43,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042177440] [2022-11-18 18:37:43,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:37:43,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1023 states [2022-11-18 18:37:43,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:43,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1023 interpolants. [2022-11-18 18:37:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139971, Invalid=905535, Unknown=0, NotChecked=0, Total=1045506 [2022-11-18 18:37:43,964 INFO L87 Difference]: Start difference. First operand 1347 states and 1410 transitions. Second operand has 1023 states, 1022 states have (on average 2.6262230919765166) internal successors, (2684), 1023 states have internal predecessors, (2684), 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)