./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 16:40:48,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:40:48,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:40:48,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:40:48,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:40:48,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:40:48,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:40:48,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:40:48,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:40:48,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:40:48,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:40:48,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:40:48,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:40:48,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:40:48,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:40:48,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:40:48,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:40:48,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:40:48,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:40:48,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:40:48,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:40:48,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:40:48,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:40:48,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:40:48,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:40:48,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:40:48,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:40:48,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:40:48,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:40:48,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:40:48,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:40:48,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:40:48,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:40:48,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:40:48,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:40:48,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:40:48,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:40:48,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:40:48,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:40:48,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:40:48,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:40:48,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 16:40:48,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:40:48,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:40:48,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:40:48,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:40:48,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:40:48,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:40:48,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:40:48,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:40:48,604 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:40:48,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:40:48,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:40:48,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:40:48,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:40:48,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:40:48,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:40:48,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:40:48,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:40:48,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:40:48,606 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:40:48,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:40:48,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:40:48,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:40:48,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:40:48,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:40:48,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:40:48,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:40:48,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:40:48,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:40:48,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:40:48,608 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:40:48,609 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 [2022-12-13 16:40:48,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:40:48,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:40:48,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:40:48,791 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:40:48,791 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:40:48,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2022-12-13 16:40:51,469 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:40:51,625 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:40:51,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2022-12-13 16:40:51,630 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/data/04f253f46/c14f00af0d69412dbfc991913f734550/FLAG3ef1baf3e [2022-12-13 16:40:51,641 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/data/04f253f46/c14f00af0d69412dbfc991913f734550 [2022-12-13 16:40:51,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:40:51,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:40:51,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:40:51,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:40:51,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:40:51,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e68f7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51, skipping insertion in model container [2022-12-13 16:40:51,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:40:51,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:40:51,770 WARN L237 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_62c43e64-7f27-4f18-97c7-1b7bec257111/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i[873,886] [2022-12-13 16:40:51,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:40:51,785 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:40:51,795 WARN L237 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_62c43e64-7f27-4f18-97c7-1b7bec257111/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i[873,886] [2022-12-13 16:40:51,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:40:51,808 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:40:51,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51 WrapperNode [2022-12-13 16:40:51,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:40:51,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:40:51,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:40:51,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:40:51,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,833 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-12-13 16:40:51,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:40:51,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:40:51,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:40:51,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:40:51,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:40:51,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:40:51,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:40:51,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:40:51,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (1/1) ... [2022-12-13 16:40:51,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:40:51,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:51,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:40:51,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:40:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:40:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:40:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:40:51,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:40:51,959 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:40:51,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:40:52,060 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:40:52,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:40:52,064 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:40:52,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:40:52 BoogieIcfgContainer [2022-12-13 16:40:52,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:40:52,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:40:52,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:40:52,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:40:52,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:40:51" (1/3) ... [2022-12-13 16:40:52,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4147d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:40:52, skipping insertion in model container [2022-12-13 16:40:52,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:40:51" (2/3) ... [2022-12-13 16:40:52,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4147d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:40:52, skipping insertion in model container [2022-12-13 16:40:52,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:40:52" (3/3) ... [2022-12-13 16:40:52,072 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark41_conjunctive.i [2022-12-13 16:40:52,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:40:52,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-12-13 16:40:52,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:40:52,123 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;@7039cbee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:40:52,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 16:40:52,126 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) [2022-12-13 16:40:52,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 16:40:52,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:40:52,131 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)] === [2022-12-13 16:40:52,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,134 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-12-13 16:40:52,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411555443] [2022-12-13 16:40:52,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411555443] [2022-12-13 16:40:52,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411555443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:40:52,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571055093] [2022-12-13 16:40:52,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:40:52,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:40:52,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:40:52,302 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) [2022-12-13 16:40:52,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,361 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-12-13 16:40:52,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:40:52,363 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 [2022-12-13 16:40:52,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,369 INFO L225 Difference]: With dead ends: 48 [2022-12-13 16:40:52,369 INFO L226 Difference]: Without dead ends: 25 [2022-12-13 16:40:52,371 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 [2022-12-13 16:40:52,373 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:52,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 36 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:52,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-13 16:40:52,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-13 16:40:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.5625) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-12-13 16:40:52,397 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 5 [2022-12-13 16:40:52,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:52,397 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-12-13 16:40:52,397 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) [2022-12-13 16:40:52,397 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-12-13 16:40:52,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 16:40:52,398 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 16:40:52,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:40:52,398 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)] === [2022-12-13 16:40:52,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,399 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-12-13 16:40:52,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727874638] [2022-12-13 16:40:52,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727874638] [2022-12-13 16:40:52,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727874638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:40:52,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835952850] [2022-12-13 16:40:52,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:40:52,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:40:52,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:40:52,449 INFO L87 Difference]: Start difference. First operand 25 states and 25 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) [2022-12-13 16:40:52,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,493 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2022-12-13 16:40:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:40:52,494 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 [2022-12-13 16:40:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,495 INFO L225 Difference]: With dead ends: 39 [2022-12-13 16:40:52,495 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 16:40:52,495 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 [2022-12-13 16:40:52,496 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:52,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 39 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 16:40:52,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2022-12-13 16:40:52,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.5263157894736843) 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) [2022-12-13 16:40:52,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-12-13 16:40:52,501 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 6 [2022-12-13 16:40:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:52,501 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-12-13 16:40:52,501 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) [2022-12-13 16:40:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-12-13 16:40:52,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 16:40:52,501 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:52,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:40:52,502 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)] === [2022-12-13 16:40:52,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-12-13 16:40:52,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163611649] [2022-12-13 16:40:52,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163611649] [2022-12-13 16:40:52,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163611649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:40:52,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754807208] [2022-12-13 16:40:52,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:40:52,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:40:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:40:52,543 INFO L87 Difference]: Start difference. First operand 28 states and 29 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) [2022-12-13 16:40:52,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,571 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-12-13 16:40:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:40:52,572 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 [2022-12-13 16:40:52,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,572 INFO L225 Difference]: With dead ends: 28 [2022-12-13 16:40:52,573 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 16:40:52,573 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 [2022-12-13 16:40:52,574 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 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 [2022-12-13 16:40:52,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:52,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 16:40:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-13 16:40:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4736842105263157) 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) [2022-12-13 16:40:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-12-13 16:40:52,579 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 7 [2022-12-13 16:40:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:52,579 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-12-13 16:40:52,579 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) [2022-12-13 16:40:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-12-13 16:40:52,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 16:40:52,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:52,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:40:52,580 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)] === [2022-12-13 16:40:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1806982231, now seen corresponding path program 1 times [2022-12-13 16:40:52,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475894269] [2022-12-13 16:40:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475894269] [2022-12-13 16:40:52,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475894269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:40:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976868563] [2022-12-13 16:40:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:40:52,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:40:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:40:52,629 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) [2022-12-13 16:40:52,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,667 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2022-12-13 16:40:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:40:52,667 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 [2022-12-13 16:40:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,668 INFO L225 Difference]: With dead ends: 37 [2022-12-13 16:40:52,668 INFO L226 Difference]: Without dead ends: 36 [2022-12-13 16:40:52,668 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 [2022-12-13 16:40:52,670 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 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 [2022-12-13 16:40:52,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:52,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-13 16:40:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2022-12-13 16:40:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-12-13 16:40:52,675 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2022-12-13 16:40:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:52,675 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-12-13 16:40:52,675 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) [2022-12-13 16:40:52,675 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-12-13 16:40:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 16:40:52,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:52,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:40:52,676 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)] === [2022-12-13 16:40:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-12-13 16:40:52,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351557696] [2022-12-13 16:40:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351557696] [2022-12-13 16:40:52,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351557696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:40:52,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106055238] [2022-12-13 16:40:52,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:40:52,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:40:52,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:40:52,721 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:52,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,753 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2022-12-13 16:40:52,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:40:52,753 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 [2022-12-13 16:40:52,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,754 INFO L225 Difference]: With dead ends: 39 [2022-12-13 16:40:52,754 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 16:40:52,754 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 [2022-12-13 16:40:52,755 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:52,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 38 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:52,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 16:40:52,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2022-12-13 16:40:52,758 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) [2022-12-13 16:40:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-12-13 16:40:52,759 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 8 [2022-12-13 16:40:52,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:52,759 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-12-13 16:40:52,760 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) [2022-12-13 16:40:52,760 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-12-13 16:40:52,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 16:40:52,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:52,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:40:52,760 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)] === [2022-12-13 16:40:52,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,761 INFO L85 PathProgramCache]: Analyzing trace with hash 181874382, now seen corresponding path program 1 times [2022-12-13 16:40:52,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463092381] [2022-12-13 16:40:52,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463092381] [2022-12-13 16:40:52,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463092381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:40:52,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380465643] [2022-12-13 16:40:52,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:40:52,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:40:52,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:40:52,800 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) [2022-12-13 16:40:52,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,829 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-12-13 16:40:52,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:40:52,830 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 [2022-12-13 16:40:52,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,830 INFO L225 Difference]: With dead ends: 34 [2022-12-13 16:40:52,830 INFO L226 Difference]: Without dead ends: 33 [2022-12-13 16:40:52,831 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 [2022-12-13 16:40:52,831 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 [2022-12-13 16:40:52,832 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] [2022-12-13 16:40:52,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-13 16:40:52,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-13 16:40:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.36) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:52,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-12-13 16:40:52,837 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 8 [2022-12-13 16:40:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:52,837 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-12-13 16:40:52,837 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) [2022-12-13 16:40:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-12-13 16:40:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 16:40:52,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:52,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:40:52,838 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)] === [2022-12-13 16:40:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-12-13 16:40:52,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150109807] [2022-12-13 16:40:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150109807] [2022-12-13 16:40:52,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150109807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:40:52,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367166985] [2022-12-13 16:40:52,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:40:52,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:40:52,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:40:52,869 INFO L87 Difference]: Start difference. First operand 33 states and 34 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) [2022-12-13 16:40:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,884 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2022-12-13 16:40:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:40:52,885 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 [2022-12-13 16:40:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,885 INFO L225 Difference]: With dead ends: 40 [2022-12-13 16:40:52,886 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 16:40:52,886 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 [2022-12-13 16:40:52,887 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:52,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 16:40:52,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2022-12-13 16:40:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:52,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-12-13 16:40:52,893 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 9 [2022-12-13 16:40:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:52,893 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-12-13 16:40:52,893 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) [2022-12-13 16:40:52,893 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-12-13 16:40:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 16:40:52,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:52,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:40:52,894 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)] === [2022-12-13 16:40:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1343138617, now seen corresponding path program 1 times [2022-12-13 16:40:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:52,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153961043] [2022-12-13 16:40:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:52,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:52,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153961043] [2022-12-13 16:40:52,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153961043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:52,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:52,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:40:52,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827510548] [2022-12-13 16:40:52,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:52,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:40:52,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:40:52,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:40:52,956 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2022-12-13 16:40:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:52,997 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2022-12-13 16:40:52,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:40:52,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 [2022-12-13 16:40:52,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:52,998 INFO L225 Difference]: With dead ends: 38 [2022-12-13 16:40:52,998 INFO L226 Difference]: Without dead ends: 37 [2022-12-13 16:40:52,998 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 [2022-12-13 16:40:52,999 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:52,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:53,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-13 16:40:53,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-12-13 16:40:53,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.3333333333333333) 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) [2022-12-13 16:40:53,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-12-13 16:40:53,003 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 9 [2022-12-13 16:40:53,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:53,003 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-12-13 16:40:53,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2022-12-13 16:40:53,004 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-12-13 16:40:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 16:40:53,004 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:53,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:53,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:40:53,005 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)] === [2022-12-13 16:40:53,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:53,005 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-12-13 16:40:53,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:53,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018782018] [2022-12-13 16:40:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:53,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:53,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018782018] [2022-12-13 16:40:53,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018782018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:53,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:53,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:40:53,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148730825] [2022-12-13 16:40:53,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:53,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:40:53,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:53,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:40:53,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:40:53,031 INFO L87 Difference]: Start difference. First operand 35 states and 36 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) [2022-12-13 16:40:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:53,039 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-12-13 16:40:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:40:53,039 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 [2022-12-13 16:40:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:53,040 INFO L225 Difference]: With dead ends: 35 [2022-12-13 16:40:53,040 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 16:40:53,040 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 [2022-12-13 16:40:53,041 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 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 [2022-12-13 16:40:53,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:53,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 16:40:53,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-12-13 16:40:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-12-13 16:40:53,044 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 10 [2022-12-13 16:40:53,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:53,044 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-12-13 16:40:53,044 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) [2022-12-13 16:40:53,044 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-12-13 16:40:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 16:40:53,044 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:53,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:53,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:40:53,045 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)] === [2022-12-13 16:40:53,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:53,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1312375760, now seen corresponding path program 1 times [2022-12-13 16:40:53,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:53,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996299845] [2022-12-13 16:40:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:53,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996299845] [2022-12-13 16:40:53,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996299845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:53,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:53,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:40:53,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314197122] [2022-12-13 16:40:53,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:53,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:40:53,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:53,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:40:53,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:40:53,075 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:53,103 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2022-12-13 16:40:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:40:53,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-13 16:40:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:53,104 INFO L225 Difference]: With dead ends: 36 [2022-12-13 16:40:53,104 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 16:40:53,104 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 [2022-12-13 16:40:53,105 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:53,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 16:40:53,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-13 16:40:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 28 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) [2022-12-13 16:40:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-12-13 16:40:53,107 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 10 [2022-12-13 16:40:53,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:53,107 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-12-13 16:40:53,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:53,108 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-12-13 16:40:53,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 16:40:53,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:53,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:53,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:40:53,108 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:53,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2001134753, now seen corresponding path program 1 times [2022-12-13 16:40:53,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:53,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52475736] [2022-12-13 16:40:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:53,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:53,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52475736] [2022-12-13 16:40:53,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52475736] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:53,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660619120] [2022-12-13 16:40:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:53,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:53,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:53,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:53,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:40:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:53,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:40:53,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660619120] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:53,278 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:53,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-13 16:40:53,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144428476] [2022-12-13 16:40:53,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:53,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:40:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:53,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:40:53,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:40:53,286 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:53,379 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2022-12-13 16:40:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:40:53,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-13 16:40:53,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:53,380 INFO L225 Difference]: With dead ends: 82 [2022-12-13 16:40:53,380 INFO L226 Difference]: Without dead ends: 81 [2022-12-13 16:40:53,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:40:53,381 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:53,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 67 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:40:53,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-12-13 16:40:53,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 47. [2022-12-13 16:40:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.35) internal successors, (54), 46 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) [2022-12-13 16:40:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-12-13 16:40:53,388 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 13 [2022-12-13 16:40:53,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:53,388 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-12-13 16:40:53,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-12-13 16:40:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 16:40:53,389 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:53,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:53,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:40:53,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 16:40:53,590 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:53,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1905680795, now seen corresponding path program 1 times [2022-12-13 16:40:53,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:53,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10700892] [2022-12-13 16:40:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:53,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:53,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:53,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10700892] [2022-12-13 16:40:53,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10700892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:53,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:53,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:40:53,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345324282] [2022-12-13 16:40:53,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:53,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:40:53,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:53,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:40:53,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:40:53,754 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:53,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:53,806 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-12-13 16:40:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:40:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 16:40:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:53,808 INFO L225 Difference]: With dead ends: 47 [2022-12-13 16:40:53,808 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 16:40:53,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:40:53,809 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:53,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 35 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 16:40:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-13 16:40:53,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.325) 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) [2022-12-13 16:40:53,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-12-13 16:40:53,816 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 14 [2022-12-13 16:40:53,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:53,817 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-12-13 16:40:53,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:53,817 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-12-13 16:40:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 16:40:53,817 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:53,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:53,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:40:53,818 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:53,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1054852641, now seen corresponding path program 1 times [2022-12-13 16:40:53,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:53,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139137646] [2022-12-13 16:40:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:53,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:53,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139137646] [2022-12-13 16:40:53,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139137646] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:53,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242046452] [2022-12-13 16:40:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:53,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:53,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:53,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:53,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 16:40:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:53,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:40:53,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:53,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:53,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242046452] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:53,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:53,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-13 16:40:53,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183908625] [2022-12-13 16:40:53,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:53,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:40:53,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:53,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:40:53,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:40:53,970 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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) [2022-12-13 16:40:54,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:54,052 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2022-12-13 16:40:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:40:54,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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) Word has length 15 [2022-12-13 16:40:54,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:54,053 INFO L225 Difference]: With dead ends: 78 [2022-12-13 16:40:54,054 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 16:40:54,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:40:54,055 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:54,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 69 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:54,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 16:40:54,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 48. [2022-12-13 16:40:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.2619047619047619) 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) [2022-12-13 16:40:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-12-13 16:40:54,061 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 15 [2022-12-13 16:40:54,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:54,061 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-12-13 16:40:54,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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) [2022-12-13 16:40:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-12-13 16:40:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 16:40:54,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:54,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:54,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 16:40:54,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 16:40:54,263 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)] === [2022-12-13 16:40:54,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:54,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1053437568, now seen corresponding path program 1 times [2022-12-13 16:40:54,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:54,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884618414] [2022-12-13 16:40:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:54,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:54,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:54,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884618414] [2022-12-13 16:40:54,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884618414] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:54,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075660670] [2022-12-13 16:40:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:54,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:54,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:54,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:54,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 16:40:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:54,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 16:40:54,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:54,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:54,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075660670] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:54,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:54,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-12-13 16:40:54,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624157585] [2022-12-13 16:40:54,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:54,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 16:40:54,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:54,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 16:40:54,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:40:54,468 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:54,566 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-12-13 16:40:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:40:54,566 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 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 [2022-12-13 16:40:54,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:54,567 INFO L225 Difference]: With dead ends: 62 [2022-12-13 16:40:54,567 INFO L226 Difference]: Without dead ends: 61 [2022-12-13 16:40:54,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-13 16:40:54,568 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:54,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 65 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:40:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-13 16:40:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2022-12-13 16:40:54,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 51 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-12-13 16:40:54,573 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 15 [2022-12-13 16:40:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:54,573 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-12-13 16:40:54,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-12-13 16:40:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 16:40:54,574 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:54,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:54,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 16:40:54,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:54,775 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:54,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1659306441, now seen corresponding path program 1 times [2022-12-13 16:40:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:54,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108349705] [2022-12-13 16:40:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:54,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:54,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:54,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108349705] [2022-12-13 16:40:54,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108349705] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:54,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314018755] [2022-12-13 16:40:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:54,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:54,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:54,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 16:40:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:54,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:40:54,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:54,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:54,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314018755] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:54,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:54,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 16:40:54,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026487645] [2022-12-13 16:40:54,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:54,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:40:54,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:54,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:40:54,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:40:54,984 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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) [2022-12-13 16:40:55,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:55,010 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2022-12-13 16:40:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:40:55,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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) Word has length 16 [2022-12-13 16:40:55,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:55,011 INFO L225 Difference]: With dead ends: 75 [2022-12-13 16:40:55,012 INFO L226 Difference]: Without dead ends: 74 [2022-12-13 16:40:55,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:40:55,012 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:55,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 65 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:55,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-12-13 16:40:55,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2022-12-13 16:40:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 52 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) [2022-12-13 16:40:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2022-12-13 16:40:55,018 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 16 [2022-12-13 16:40:55,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:55,018 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2022-12-13 16:40:55,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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) [2022-12-13 16:40:55,018 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2022-12-13 16:40:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 16:40:55,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:55,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:55,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 16:40:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 16:40:55,220 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:55,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:55,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1703173689, now seen corresponding path program 1 times [2022-12-13 16:40:55,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:55,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239336979] [2022-12-13 16:40:55,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:55,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:55,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:55,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:55,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239336979] [2022-12-13 16:40:55,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239336979] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:55,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406481634] [2022-12-13 16:40:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:55,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:55,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:55,377 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:55,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 16:40:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:55,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 16:40:55,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:55,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 16:40:55,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406481634] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:55,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:40:55,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 16 [2022-12-13 16:40:55,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357718635] [2022-12-13 16:40:55,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:55,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:40:55,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:55,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:40:55,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:40:55,589 INFO L87 Difference]: Start difference. First operand 53 states and 56 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) [2022-12-13 16:40:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:55,646 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2022-12-13 16:40:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:40:55,647 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 [2022-12-13 16:40:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:55,647 INFO L225 Difference]: With dead ends: 53 [2022-12-13 16:40:55,647 INFO L226 Difference]: Without dead ends: 52 [2022-12-13 16:40:55,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-12-13 16:40:55,648 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:55,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-13 16:40:55,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-13 16:40:55,651 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) [2022-12-13 16:40:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-12-13 16:40:55,651 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 16 [2022-12-13 16:40:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:55,651 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-12-13 16:40:55,651 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) [2022-12-13 16:40:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-12-13 16:40:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 16:40:55,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:55,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:55,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 16:40:55,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 16:40:55,853 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)] === [2022-12-13 16:40:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:55,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1258776734, now seen corresponding path program 1 times [2022-12-13 16:40:55,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:55,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546884549] [2022-12-13 16:40:55,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:55,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:56,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 16:40:56,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:56,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546884549] [2022-12-13 16:40:56,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546884549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:40:56,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:40:56,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:40:56,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911946382] [2022-12-13 16:40:56,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:40:56,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:40:56,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:56,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:40:56,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:40:56,007 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) [2022-12-13 16:40:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:56,049 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-12-13 16:40:56,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:40:56,049 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 [2022-12-13 16:40:56,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:56,050 INFO L225 Difference]: With dead ends: 52 [2022-12-13 16:40:56,050 INFO L226 Difference]: Without dead ends: 45 [2022-12-13 16:40:56,051 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 [2022-12-13 16:40:56,051 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:56,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 12 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-13 16:40:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-12-13 16:40:56,055 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) [2022-12-13 16:40:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2022-12-13 16:40:56,056 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 17 [2022-12-13 16:40:56,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:56,056 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2022-12-13 16:40:56,056 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) [2022-12-13 16:40:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2022-12-13 16:40:56,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 16:40:56,057 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:56,057 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:56,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:40:56,057 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash 179577536, now seen corresponding path program 2 times [2022-12-13 16:40:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:56,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757036851] [2022-12-13 16:40:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:56,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:56,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:56,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757036851] [2022-12-13 16:40:56,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757036851] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:56,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810275716] [2022-12-13 16:40:56,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:40:56,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:56,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:56,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:56,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 16:40:56,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:40:56,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:40:56,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 16:40:56,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:56,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:56,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810275716] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:56,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:56,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2022-12-13 16:40:56,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465712525] [2022-12-13 16:40:56,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:56,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 16:40:56,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:56,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 16:40:56,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-12-13 16:40:56,503 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:56,709 INFO L93 Difference]: Finished difference Result 87 states and 90 transitions. [2022-12-13 16:40:56,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 16:40:56,710 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 states have internal predecessors, (83), 0 states have call successors, (0), 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 29 [2022-12-13 16:40:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:56,710 INFO L225 Difference]: With dead ends: 87 [2022-12-13 16:40:56,710 INFO L226 Difference]: Without dead ends: 70 [2022-12-13 16:40:56,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=1610, Unknown=0, NotChecked=0, Total=1980 [2022-12-13 16:40:56,711 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 90 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:56,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 119 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:40:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-13 16:40:56,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 61. [2022-12-13 16:40:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 60 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2022-12-13 16:40:56,714 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 29 [2022-12-13 16:40:56,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:56,714 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2022-12-13 16:40:56,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:56,715 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2022-12-13 16:40:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 16:40:56,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:56,715 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-12-13 16:40:56,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 16:40:56,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 16:40:56,916 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:56,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:56,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1492176557, now seen corresponding path program 2 times [2022-12-13 16:40:56,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:56,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181783765] [2022-12-13 16:40:56,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:57,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181783765] [2022-12-13 16:40:57,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181783765] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:57,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261310926] [2022-12-13 16:40:57,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:40:57,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:57,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:57,025 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:57,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 16:40:57,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:40:57,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:40:57,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 16:40:57,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:57,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:57,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261310926] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:57,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:57,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-12-13 16:40:57,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766350678] [2022-12-13 16:40:57,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:57,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 16:40:57,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:57,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 16:40:57,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-12-13 16:40:57,209 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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) [2022-12-13 16:40:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:57,345 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2022-12-13 16:40:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 16:40:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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) Word has length 34 [2022-12-13 16:40:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:57,346 INFO L225 Difference]: With dead ends: 110 [2022-12-13 16:40:57,346 INFO L226 Difference]: Without dead ends: 109 [2022-12-13 16:40:57,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:40:57,348 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 86 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:57,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 99 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:40:57,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-12-13 16:40:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 84. [2022-12-13 16:40:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.2125) internal successors, (97), 83 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:57,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 97 transitions. [2022-12-13 16:40:57,354 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 97 transitions. Word has length 34 [2022-12-13 16:40:57,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:57,354 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 97 transitions. [2022-12-13 16:40:57,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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) [2022-12-13 16:40:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 97 transitions. [2022-12-13 16:40:57,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 16:40:57,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:57,355 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2022-12-13 16:40:57,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 16:40:57,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:57,556 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:57,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:57,556 INFO L85 PathProgramCache]: Analyzing trace with hash -537403921, now seen corresponding path program 2 times [2022-12-13 16:40:57,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:57,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629197725] [2022-12-13 16:40:57,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:57,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:57,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:57,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629197725] [2022-12-13 16:40:57,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629197725] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:57,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096287766] [2022-12-13 16:40:57,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:40:57,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:57,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:57,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:57,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 16:40:57,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:40:57,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:40:57,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 16:40:57,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:57,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:57,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096287766] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:57,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:57,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-12-13 16:40:57,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198419807] [2022-12-13 16:40:57,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:57,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 16:40:57,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:57,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 16:40:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-12-13 16:40:57,859 INFO L87 Difference]: Start difference. First operand 84 states and 97 transitions. Second operand has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:58,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:58,003 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2022-12-13 16:40:58,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 16:40:58,003 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 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 36 [2022-12-13 16:40:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:58,004 INFO L225 Difference]: With dead ends: 107 [2022-12-13 16:40:58,004 INFO L226 Difference]: Without dead ends: 106 [2022-12-13 16:40:58,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:40:58,006 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 71 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:58,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 117 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:40:58,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-13 16:40:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 86. [2022-12-13 16:40:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.146341463414634) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-12-13 16:40:58,011 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 36 [2022-12-13 16:40:58,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:58,012 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-12-13 16:40:58,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:58,012 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-12-13 16:40:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-13 16:40:58,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:58,012 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-12-13 16:40:58,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 16:40:58,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:58,213 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:58,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:58,214 INFO L85 PathProgramCache]: Analyzing trace with hash 520347689, now seen corresponding path program 2 times [2022-12-13 16:40:58,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:58,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782246329] [2022-12-13 16:40:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:58,344 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:58,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:58,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782246329] [2022-12-13 16:40:58,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782246329] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:58,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82400006] [2022-12-13 16:40:58,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:40:58,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:58,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:58,346 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:58,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 16:40:58,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:40:58,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:40:58,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:40:58,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:58,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:58,481 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:58,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82400006] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:58,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:58,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-12-13 16:40:58,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811616175] [2022-12-13 16:40:58,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:58,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:40:58,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:58,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:40:58,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:40:58,482 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:58,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:40:58,504 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2022-12-13 16:40:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 16:40:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-12-13 16:40:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:40:58,505 INFO L225 Difference]: With dead ends: 103 [2022-12-13 16:40:58,505 INFO L226 Difference]: Without dead ends: 102 [2022-12-13 16:40:58,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:40:58,506 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:40:58,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 102 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:40:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-13 16:40:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2022-12-13 16:40:58,511 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) [2022-12-13 16:40:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2022-12-13 16:40:58,511 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 37 [2022-12-13 16:40:58,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:40:58,512 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2022-12-13 16:40:58,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:40:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2022-12-13 16:40:58,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 16:40:58,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:40:58,513 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:40:58,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 16:40:58,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:58,713 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:40:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:40:58,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1591035072, now seen corresponding path program 3 times [2022-12-13 16:40:58,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:40:58,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113241624] [2022-12-13 16:40:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:40:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:40:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:40:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:40:58,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113241624] [2022-12-13 16:40:58,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113241624] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:40:58,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368854264] [2022-12-13 16:40:58,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 16:40:58,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:40:58,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:40:58,892 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:40:58,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 16:40:58,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 16:40:58,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:40:58,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 16:40:58,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:40:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:59,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:40:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:40:59,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368854264] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:40:59,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:40:59,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 62 [2022-12-13 16:40:59,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676944300] [2022-12-13 16:40:59,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:40:59,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-12-13 16:40:59,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:40:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-12-13 16:40:59,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=591, Invalid=3315, Unknown=0, NotChecked=0, Total=3906 [2022-12-13 16:40:59,626 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:00,077 INFO L93 Difference]: Finished difference Result 165 states and 172 transitions. [2022-12-13 16:41:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 16:41:00,078 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 states have internal predecessors, (167), 0 states have call successors, (0), 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 57 [2022-12-13 16:41:00,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:00,079 INFO L225 Difference]: With dead ends: 165 [2022-12-13 16:41:00,079 INFO L226 Difference]: Without dead ends: 132 [2022-12-13 16:41:00,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3544 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1476, Invalid=7454, Unknown=0, NotChecked=0, Total=8930 [2022-12-13 16:41:00,084 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 240 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:00,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 153 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:41:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-13 16:41:00,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 117. [2022-12-13 16:41:00,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 113 states have (on average 1.1415929203539823) internal successors, (129), 116 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2022-12-13 16:41:00,088 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 57 [2022-12-13 16:41:00,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:00,088 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2022-12-13 16:41:00,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2022-12-13 16:41:00,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 16:41:00,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:00,088 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-12-13 16:41:00,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 16:41:00,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:00,290 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1429047789, now seen corresponding path program 3 times [2022-12-13 16:41:00,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:00,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182072265] [2022-12-13 16:41:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:00,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:00,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182072265] [2022-12-13 16:41:00,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182072265] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:00,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966562612] [2022-12-13 16:41:00,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 16:41:00,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:00,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:00,612 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:00,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 16:41:00,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 16:41:00,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:00,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 16:41:00,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:00,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:01,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966562612] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:01,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:01,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-12-13 16:41:01,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455632115] [2022-12-13 16:41:01,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:01,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-13 16:41:01,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:01,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-13 16:41:01,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-12-13 16:41:01,167 INFO L87 Difference]: Start difference. First operand 117 states and 129 transitions. Second operand has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:01,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:01,548 INFO L93 Difference]: Finished difference Result 226 states and 237 transitions. [2022-12-13 16:41:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 16:41:01,548 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 0 states have call successors, (0), 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 76 [2022-12-13 16:41:01,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:01,550 INFO L225 Difference]: With dead ends: 226 [2022-12-13 16:41:01,550 INFO L226 Difference]: Without dead ends: 225 [2022-12-13 16:41:01,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-12-13 16:41:01,553 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 264 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:01,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 215 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:41:01,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-12-13 16:41:01,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 168. [2022-12-13 16:41:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.201219512195122) internal successors, (197), 167 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 197 transitions. [2022-12-13 16:41:01,561 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 197 transitions. Word has length 76 [2022-12-13 16:41:01,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:01,561 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 197 transitions. [2022-12-13 16:41:01,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 197 transitions. [2022-12-13 16:41:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 16:41:01,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:01,562 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2022-12-13 16:41:01,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 16:41:01,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 16:41:01,762 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1074607825, now seen corresponding path program 3 times [2022-12-13 16:41:01,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:01,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971729270] [2022-12-13 16:41:01,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:01,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:02,021 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:02,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:02,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971729270] [2022-12-13 16:41:02,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971729270] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:02,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650152602] [2022-12-13 16:41:02,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 16:41:02,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:02,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:02,022 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:02,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 16:41:02,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 16:41:02,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:02,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 16:41:02,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:02,164 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:02,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:02,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650152602] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:02,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:02,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-12-13 16:41:02,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344440619] [2022-12-13 16:41:02,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:02,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-13 16:41:02,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:02,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-13 16:41:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-12-13 16:41:02,535 INFO L87 Difference]: Start difference. First operand 168 states and 197 transitions. Second operand has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:02,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:02,917 INFO L93 Difference]: Finished difference Result 217 states and 228 transitions. [2022-12-13 16:41:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 16:41:02,918 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 0 states have call successors, (0), 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 78 [2022-12-13 16:41:02,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:02,919 INFO L225 Difference]: With dead ends: 217 [2022-12-13 16:41:02,919 INFO L226 Difference]: Without dead ends: 216 [2022-12-13 16:41:02,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-12-13 16:41:02,922 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 236 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:02,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 173 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:41:02,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-13 16:41:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 170. [2022-12-13 16:41:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 166 states have (on average 1.1325301204819278) internal successors, (188), 169 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 188 transitions. [2022-12-13 16:41:02,930 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 188 transitions. Word has length 78 [2022-12-13 16:41:02,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:02,930 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 188 transitions. [2022-12-13 16:41:02,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:02,930 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 188 transitions. [2022-12-13 16:41:02,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 16:41:02,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:02,930 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-12-13 16:41:02,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 16:41:03,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:03,132 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:03,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:03,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1046895849, now seen corresponding path program 3 times [2022-12-13 16:41:03,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:03,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685170389] [2022-12-13 16:41:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:03,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:03,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685170389] [2022-12-13 16:41:03,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685170389] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878602710] [2022-12-13 16:41:03,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 16:41:03,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:03,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:03,282 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:03,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 16:41:03,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 16:41:03,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:03,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 16:41:03,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:03,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:03,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878602710] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:03,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:03,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-12-13 16:41:03,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635102571] [2022-12-13 16:41:03,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:03,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 16:41:03,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 16:41:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:41:03,612 INFO L87 Difference]: Start difference. First operand 170 states and 188 transitions. Second operand has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:03,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:03,650 INFO L93 Difference]: Finished difference Result 207 states and 218 transitions. [2022-12-13 16:41:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 16:41:03,650 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 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 79 [2022-12-13 16:41:03,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:03,651 INFO L225 Difference]: With dead ends: 207 [2022-12-13 16:41:03,652 INFO L226 Difference]: Without dead ends: 206 [2022-12-13 16:41:03,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:41:03,652 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 67 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:03,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 193 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:41:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-13 16:41:03,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 171. [2022-12-13 16:41:03,661 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) [2022-12-13 16:41:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2022-12-13 16:41:03,662 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 79 [2022-12-13 16:41:03,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:03,662 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2022-12-13 16:41:03,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2022-12-13 16:41:03,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 16:41:03,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:03,664 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:41:03,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 16:41:03,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 16:41:03,865 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:03,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:03,866 INFO L85 PathProgramCache]: Analyzing trace with hash 236104768, now seen corresponding path program 4 times [2022-12-13 16:41:03,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:03,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253992171] [2022-12-13 16:41:03,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:03,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:04,350 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:04,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:04,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253992171] [2022-12-13 16:41:04,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253992171] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:04,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498645924] [2022-12-13 16:41:04,350 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 16:41:04,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:04,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:04,351 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:04,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 16:41:04,414 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 16:41:04,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:04,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-13 16:41:04,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:05,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:06,362 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:06,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498645924] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:06,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:06,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 47, 47] total 126 [2022-12-13 16:41:06,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791719666] [2022-12-13 16:41:06,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:06,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-12-13 16:41:06,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:06,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-12-13 16:41:06,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2267, Invalid=13735, Unknown=0, NotChecked=0, Total=16002 [2022-12-13 16:41:06,373 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:07,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:07,990 INFO L93 Difference]: Finished difference Result 321 states and 336 transitions. [2022-12-13 16:41:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-12-13 16:41:07,991 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 0 states have call successors, (0), 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 113 [2022-12-13 16:41:07,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:07,991 INFO L225 Difference]: With dead ends: 321 [2022-12-13 16:41:07,991 INFO L226 Difference]: Without dead ends: 256 [2022-12-13 16:41:07,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16296 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=5896, Invalid=31934, Unknown=0, NotChecked=0, Total=37830 [2022-12-13 16:41:07,995 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 620 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:07,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 228 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:41:07,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-12-13 16:41:08,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2022-12-13 16:41:08,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 225 states have (on average 1.1244444444444444) internal successors, (253), 228 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:08,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 253 transitions. [2022-12-13 16:41:08,007 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 253 transitions. Word has length 113 [2022-12-13 16:41:08,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:08,007 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 253 transitions. [2022-12-13 16:41:08,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:08,007 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 253 transitions. [2022-12-13 16:41:08,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-13 16:41:08,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:08,009 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-12-13 16:41:08,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 16:41:08,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 16:41:08,210 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:08,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:08,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1207906195, now seen corresponding path program 4 times [2022-12-13 16:41:08,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:08,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077762280] [2022-12-13 16:41:08,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:08,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:09,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:09,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077762280] [2022-12-13 16:41:09,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077762280] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:09,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124641596] [2022-12-13 16:41:09,146 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 16:41:09,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:09,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:09,147 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:09,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 16:41:09,199 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 16:41:09,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:09,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 16:41:09,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:09,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:10,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124641596] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:10,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:10,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-12-13 16:41:10,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136378428] [2022-12-13 16:41:10,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:10,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-12-13 16:41:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:10,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-12-13 16:41:10,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-12-13 16:41:10,468 INFO L87 Difference]: Start difference. First operand 229 states and 253 transitions. Second operand has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:11,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:11,564 INFO L93 Difference]: Finished difference Result 458 states and 481 transitions. [2022-12-13 16:41:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-12-13 16:41:11,564 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 0 states have call successors, (0), 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 160 [2022-12-13 16:41:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:11,565 INFO L225 Difference]: With dead ends: 458 [2022-12-13 16:41:11,565 INFO L226 Difference]: Without dead ends: 457 [2022-12-13 16:41:11,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-12-13 16:41:11,567 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 609 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:11,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 367 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:41:11,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-12-13 16:41:11,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 336. [2022-12-13 16:41:11,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 332 states have (on average 1.1957831325301205) internal successors, (397), 335 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:11,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 397 transitions. [2022-12-13 16:41:11,579 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 397 transitions. Word has length 160 [2022-12-13 16:41:11,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:11,579 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 397 transitions. [2022-12-13 16:41:11,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 397 transitions. [2022-12-13 16:41:11,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 16:41:11,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:11,580 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1] [2022-12-13 16:41:11,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-13 16:41:11,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 16:41:11,782 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:11,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:11,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1156681809, now seen corresponding path program 4 times [2022-12-13 16:41:11,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:11,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129456926] [2022-12-13 16:41:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:11,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:12,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:12,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129456926] [2022-12-13 16:41:12,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129456926] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:12,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660824354] [2022-12-13 16:41:12,642 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 16:41:12,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:12,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:12,643 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:12,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 16:41:12,695 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 16:41:12,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:12,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 16:41:12,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:12,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:14,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660824354] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:14,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:14,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-12-13 16:41:14,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276968574] [2022-12-13 16:41:14,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:14,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-12-13 16:41:14,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:14,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-12-13 16:41:14,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-12-13 16:41:14,245 INFO L87 Difference]: Start difference. First operand 336 states and 397 transitions. Second operand has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:15,435 INFO L93 Difference]: Finished difference Result 437 states and 460 transitions. [2022-12-13 16:41:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-12-13 16:41:15,435 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 0 states have call successors, (0), 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 162 [2022-12-13 16:41:15,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:15,437 INFO L225 Difference]: With dead ends: 437 [2022-12-13 16:41:15,437 INFO L226 Difference]: Without dead ends: 436 [2022-12-13 16:41:15,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-12-13 16:41:15,438 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 519 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:15,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 316 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:41:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-12-13 16:41:15,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 338. [2022-12-13 16:41:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 334 states have (on average 1.125748502994012) internal successors, (376), 337 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 376 transitions. [2022-12-13 16:41:15,449 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 376 transitions. Word has length 162 [2022-12-13 16:41:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:15,450 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 376 transitions. [2022-12-13 16:41:15,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 376 transitions. [2022-12-13 16:41:15,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 16:41:15,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:15,450 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-12-13 16:41:15,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-12-13 16:41:15,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 16:41:15,652 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:15,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:15,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1497397655, now seen corresponding path program 4 times [2022-12-13 16:41:15,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:15,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472450436] [2022-12-13 16:41:15,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:15,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:16,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:16,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472450436] [2022-12-13 16:41:16,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472450436] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:16,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996966141] [2022-12-13 16:41:16,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 16:41:16,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:16,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:16,026 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:16,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 16:41:16,081 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 16:41:16,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:16,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 16:41:16,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:16,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:16,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:16,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996966141] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:16,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:16,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-12-13 16:41:16,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654276178] [2022-12-13 16:41:16,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:16,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-13 16:41:16,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-13 16:41:16,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 16:41:16,777 INFO L87 Difference]: Start difference. First operand 338 states and 376 transitions. Second operand has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:16,890 INFO L93 Difference]: Finished difference Result 415 states and 438 transitions. [2022-12-13 16:41:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-13 16:41:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 0 states have call successors, (0), 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 163 [2022-12-13 16:41:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:16,893 INFO L225 Difference]: With dead ends: 415 [2022-12-13 16:41:16,893 INFO L226 Difference]: Without dead ends: 414 [2022-12-13 16:41:16,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 16:41:16,893 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 227 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:16,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 366 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:41:16,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-12-13 16:41:16,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 339. [2022-12-13 16:41:16,903 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) [2022-12-13 16:41:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 354 transitions. [2022-12-13 16:41:16,903 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 354 transitions. Word has length 163 [2022-12-13 16:41:16,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:16,903 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 354 transitions. [2022-12-13 16:41:16,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:16,904 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 354 transitions. [2022-12-13 16:41:16,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-12-13 16:41:16,904 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:16,904 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:41:16,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 16:41:17,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 16:41:17,105 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1689416128, now seen corresponding path program 5 times [2022-12-13 16:41:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:17,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724950524] [2022-12-13 16:41:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:17,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:18,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:18,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:18,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724950524] [2022-12-13 16:41:18,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724950524] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:18,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767209713] [2022-12-13 16:41:18,925 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 16:41:18,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:18,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:18,926 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:18,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 16:41:19,160 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-12-13 16:41:19,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:19,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 127 conjunts are in the unsatisfiable core [2022-12-13 16:41:19,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:21,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:24,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767209713] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:24,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:24,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 95, 95] total 254 [2022-12-13 16:41:24,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070797020] [2022-12-13 16:41:24,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:24,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 255 states [2022-12-13 16:41:24,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 255 interpolants. [2022-12-13 16:41:24,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8883, Invalid=55887, Unknown=0, NotChecked=0, Total=64770 [2022-12-13 16:41:24,779 INFO L87 Difference]: Start difference. First operand 339 states and 354 transitions. Second operand has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:30,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:30,714 INFO L93 Difference]: Finished difference Result 633 states and 664 transitions. [2022-12-13 16:41:30,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-12-13 16:41:30,715 INFO L78 Accepts]: Start accepts. Automaton has has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 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 225 [2022-12-13 16:41:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:30,716 INFO L225 Difference]: With dead ends: 633 [2022-12-13 16:41:30,716 INFO L226 Difference]: Without dead ends: 504 [2022-12-13 16:41:30,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69640 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=23568, Invalid=132062, Unknown=0, NotChecked=0, Total=155630 [2022-12-13 16:41:30,722 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1330 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:30,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 384 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 16:41:30,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-12-13 16:41:30,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 453. [2022-12-13 16:41:30,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 449 states have (on average 1.1158129175946547) internal successors, (501), 452 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 501 transitions. [2022-12-13 16:41:30,734 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 501 transitions. Word has length 225 [2022-12-13 16:41:30,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:30,734 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 501 transitions. [2022-12-13 16:41:30,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:30,734 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 501 transitions. [2022-12-13 16:41:30,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-12-13 16:41:30,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:30,735 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2022-12-13 16:41:30,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 16:41:30,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:30,937 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:30,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:30,938 INFO L85 PathProgramCache]: Analyzing trace with hash -734093971, now seen corresponding path program 5 times [2022-12-13 16:41:30,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:30,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587761301] [2022-12-13 16:41:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:30,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:34,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:34,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587761301] [2022-12-13 16:41:34,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587761301] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:34,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362506632] [2022-12-13 16:41:34,297 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 16:41:34,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:34,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:34,297 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:34,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 16:41:34,875 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-12-13 16:41:34,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:34,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-13 16:41:34,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:35,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:40,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362506632] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:40,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:40,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-12-13 16:41:40,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756183243] [2022-12-13 16:41:40,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:40,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-12-13 16:41:40,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:40,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-12-13 16:41:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-12-13 16:41:40,379 INFO L87 Difference]: Start difference. First operand 453 states and 501 transitions. Second operand has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:45,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:45,044 INFO L93 Difference]: Finished difference Result 922 states and 969 transitions. [2022-12-13 16:41:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-12-13 16:41:45,045 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 0 states have call successors, (0), 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 328 [2022-12-13 16:41:45,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:45,046 INFO L225 Difference]: With dead ends: 922 [2022-12-13 16:41:45,046 INFO L226 Difference]: Without dead ends: 921 [2022-12-13 16:41:45,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-12-13 16:41:45,049 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1637 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:45,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 625 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 16:41:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-12-13 16:41:45,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 672. [2022-12-13 16:41:45,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 668 states have (on average 1.1931137724550898) internal successors, (797), 671 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 797 transitions. [2022-12-13 16:41:45,065 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 797 transitions. Word has length 328 [2022-12-13 16:41:45,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:45,065 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 797 transitions. [2022-12-13 16:41:45,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:45,065 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 797 transitions. [2022-12-13 16:41:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-12-13 16:41:45,066 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:45,066 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1, 1, 1] [2022-12-13 16:41:45,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-12-13 16:41:45,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:45,267 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:45,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:45,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1089667921, now seen corresponding path program 5 times [2022-12-13 16:41:45,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:45,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256049664] [2022-12-13 16:41:45,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:45,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:41:48,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:48,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:41:48,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256049664] [2022-12-13 16:41:48,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256049664] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:41:48,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293632214] [2022-12-13 16:41:48,548 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 16:41:48,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:41:48,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:41:48,549 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:41:48,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 16:41:49,008 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-12-13 16:41:49,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:41:49,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-13 16:41:49,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:41:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:49,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:41:54,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:41:54,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293632214] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:41:54,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:41:54,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-12-13 16:41:54,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856904126] [2022-12-13 16:41:54,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:41:54,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-12-13 16:41:54,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:41:54,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-12-13 16:41:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-12-13 16:41:54,743 INFO L87 Difference]: Start difference. First operand 672 states and 797 transitions. Second operand has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:59,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:41:59,729 INFO L93 Difference]: Finished difference Result 877 states and 924 transitions. [2022-12-13 16:41:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-12-13 16:41:59,730 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 0 states have call successors, (0), 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 330 [2022-12-13 16:41:59,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:41:59,731 INFO L225 Difference]: With dead ends: 877 [2022-12-13 16:41:59,731 INFO L226 Difference]: Without dead ends: 876 [2022-12-13 16:41:59,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-12-13 16:41:59,735 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1215 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:41:59,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 590 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 16:41:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-12-13 16:41:59,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 674. [2022-12-13 16:41:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 670 states have (on average 1.1223880597014926) internal successors, (752), 673 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 752 transitions. [2022-12-13 16:41:59,759 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 752 transitions. Word has length 330 [2022-12-13 16:41:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:41:59,759 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 752 transitions. [2022-12-13 16:41:59,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:41:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 752 transitions. [2022-12-13 16:41:59,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-12-13 16:41:59,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:41:59,761 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2022-12-13 16:41:59,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 16:41:59,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-13 16:41:59,961 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:41:59,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:41:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash 580032873, now seen corresponding path program 5 times [2022-12-13 16:41:59,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:41:59,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118708514] [2022-12-13 16:41:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:41:59,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:41:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:01,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:01,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118708514] [2022-12-13 16:42:01,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118708514] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:42:01,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894968385] [2022-12-13 16:42:01,395 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 16:42:01,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:42:01,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:42:01,396 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:42:01,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 16:42:01,861 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-12-13 16:42:01,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:42:01,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 16:42:01,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:42:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:02,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:42:03,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:03,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894968385] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:42:03,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:42:03,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-12-13 16:42:03,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450703479] [2022-12-13 16:42:03,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:42:03,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-12-13 16:42:03,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:03,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-12-13 16:42:03,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-12-13 16:42:03,953 INFO L87 Difference]: Start difference. First operand 674 states and 752 transitions. Second operand has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:04,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:42:04,279 INFO L93 Difference]: Finished difference Result 831 states and 878 transitions. [2022-12-13 16:42:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-13 16:42:04,280 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 0 states have call successors, (0), 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 331 [2022-12-13 16:42:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:42:04,281 INFO L225 Difference]: With dead ends: 831 [2022-12-13 16:42:04,281 INFO L226 Difference]: Without dead ends: 830 [2022-12-13 16:42:04,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-12-13 16:42:04,282 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 602 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:42:04,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 702 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:42:04,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-12-13 16:42:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 675. [2022-12-13 16:42:04,297 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) [2022-12-13 16:42:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 706 transitions. [2022-12-13 16:42:04,298 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 706 transitions. Word has length 331 [2022-12-13 16:42:04,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:42:04,298 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 706 transitions. [2022-12-13 16:42:04,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:42:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 706 transitions. [2022-12-13 16:42:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-12-13 16:42:04,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:42:04,300 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:42:04,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-12-13 16:42:04,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-12-13 16:42:04,501 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:42:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:42:04,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1620094400, now seen corresponding path program 6 times [2022-12-13 16:42:04,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:42:04,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465478423] [2022-12-13 16:42:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:42:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:42:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:42:11,171 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:11,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:42:11,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465478423] [2022-12-13 16:42:11,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465478423] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:42:11,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664278447] [2022-12-13 16:42:11,172 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 16:42:11,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:42:11,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:42:11,173 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:42:11,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 16:42:11,891 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-12-13 16:42:11,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:42:11,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 130 conjunts are in the unsatisfiable core [2022-12-13 16:42:11,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:42:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:19,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:42:31,035 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:42:31,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664278447] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:42:31,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:42:31,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 388 [2022-12-13 16:42:31,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453631873] [2022-12-13 16:42:31,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:42:31,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 389 states [2022-12-13 16:42:31,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:42:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 389 interpolants. [2022-12-13 16:42:31,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20889, Invalid=130043, Unknown=0, NotChecked=0, Total=150932 [2022-12-13 16:42:31,046 INFO L87 Difference]: Start difference. First operand 675 states and 706 transitions. Second operand has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:43:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:43:09,973 INFO L93 Difference]: Finished difference Result 1229 states and 1323 transitions. [2022-12-13 16:43:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 446 states. [2022-12-13 16:43:09,973 INFO L78 Accepts]: Start accepts. Automaton has has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 0 states have call successors, (0), 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 449 [2022-12-13 16:43:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:43:09,976 INFO L225 Difference]: With dead ends: 1229 [2022-12-13 16:43:09,976 INFO L226 Difference]: Without dead ends: 971 [2022-12-13 16:43:10,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1407 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166199 ImplicationChecksByTransitivity, 55.7s TimeCoverageRelationStatistics Valid=109693, Invalid=482437, Unknown=0, NotChecked=0, Total=592130 [2022-12-13 16:43:10,020 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3274 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3274 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:43:10,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3274 Valid, 794 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:43:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-12-13 16:43:10,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 901. [2022-12-13 16:43:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 897 states have (on average 1.0758082497212933) internal successors, (965), 900 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:43:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 965 transitions. [2022-12-13 16:43:10,057 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 965 transitions. Word has length 449 [2022-12-13 16:43:10,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:43:10,058 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 965 transitions. [2022-12-13 16:43:10,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:43:10,058 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 965 transitions. [2022-12-13 16:43:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2022-12-13 16:43:10,063 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:43:10,063 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2022-12-13 16:43:10,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-13 16:43:10,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 16:43:10,264 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:43:10,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:43:10,265 INFO L85 PathProgramCache]: Analyzing trace with hash -929613971, now seen corresponding path program 6 times [2022-12-13 16:43:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:43:10,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253462410] [2022-12-13 16:43:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:43:10,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:43:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:43:25,994 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:43:25,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:43:25,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253462410] [2022-12-13 16:43:25,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253462410] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:43:25,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61292020] [2022-12-13 16:43:25,995 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 16:43:25,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:43:25,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:25,996 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:43:25,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 16:43:27,864 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-12-13 16:43:27,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:43:27,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 192 conjunts are in the unsatisfiable core [2022-12-13 16:43:27,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:43:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:43:28,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:43:44,625 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:43:44,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61292020] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:43:44,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:43:44,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2022-12-13 16:43:44,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911786009] [2022-12-13 16:43:44,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:43:44,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-12-13 16:43:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:43:44,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-12-13 16:43:44,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-12-13 16:43:44,638 INFO L87 Difference]: Start difference. First operand 901 states and 965 transitions. Second operand has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:44:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:44:07,282 INFO L93 Difference]: Finished difference Result 1818 states and 1913 transitions. [2022-12-13 16:44:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-12-13 16:44:07,283 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 0 states have call successors, (0), 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 664 [2022-12-13 16:44:07,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:44:07,286 INFO L225 Difference]: With dead ends: 1818 [2022-12-13 16:44:07,286 INFO L226 Difference]: Without dead ends: 1817 [2022-12-13 16:44:07,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1707 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2022-12-13 16:44:07,299 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3226 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:44:07,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3226 Valid, 1138 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:44:07,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2022-12-13 16:44:07,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1344. [2022-12-13 16:44:07,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1340 states have (on average 1.1679104477611941) internal successors, (1565), 1343 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:44:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1565 transitions. [2022-12-13 16:44:07,327 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1565 transitions. Word has length 664 [2022-12-13 16:44:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:44:07,328 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1565 transitions. [2022-12-13 16:44:07,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:44:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1565 transitions. [2022-12-13 16:44:07,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2022-12-13 16:44:07,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:44:07,331 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2022-12-13 16:44:07,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-12-13 16:44:07,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 16:44:07,532 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:44:07,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:44:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash -180633751, now seen corresponding path program 6 times [2022-12-13 16:44:07,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:44:07,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932113864] [2022-12-13 16:44:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:44:07,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:44:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:44:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:44:13,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932113864] [2022-12-13 16:44:13,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932113864] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:44:13,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389490375] [2022-12-13 16:44:13,530 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 16:44:13,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:44:13,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:44:13,531 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:44:13,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 16:44:15,853 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-12-13 16:44:15,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:44:15,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-13 16:44:15,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:44:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:44:16,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:44:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:44:23,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389490375] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:44:23,277 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:44:23,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-12-13 16:44:23,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081676948] [2022-12-13 16:44:23,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:44:23,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-12-13 16:44:23,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:44:23,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-12-13 16:44:23,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-12-13 16:44:23,284 INFO L87 Difference]: Start difference. First operand 1344 states and 1565 transitions. Second operand has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:44:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:44:25,167 INFO L93 Difference]: Finished difference Result 1727 states and 1822 transitions. [2022-12-13 16:44:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-12-13 16:44:25,167 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 0 states have call successors, (0), 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 667 [2022-12-13 16:44:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:44:25,170 INFO L225 Difference]: With dead ends: 1727 [2022-12-13 16:44:25,170 INFO L226 Difference]: Without dead ends: 1726 [2022-12-13 16:44:25,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1238 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-12-13 16:44:25,172 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1260 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:44:25,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1383 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:44:25,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-12-13 16:44:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1347. [2022-12-13 16:44:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1343 states have (on average 1.0975428145941921) internal successors, (1474), 1346 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:44:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1474 transitions. [2022-12-13 16:44:25,203 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1474 transitions. Word has length 667 [2022-12-13 16:44:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:44:25,203 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 1474 transitions. [2022-12-13 16:44:25,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:44:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1474 transitions. [2022-12-13 16:44:25,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2022-12-13 16:44:25,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:44:25,209 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 126, 126, 1, 1, 1, 1] [2022-12-13 16:44:25,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-12-13 16:44:25,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-13 16:44:25,410 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:44:25,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:44:25,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1159320239, now seen corresponding path program 6 times [2022-12-13 16:44:25,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:44:25,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240809255] [2022-12-13 16:44:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:44:25,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:44:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:44:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:44:58,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:44:58,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240809255] [2022-12-13 16:44:58,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240809255] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:44:58,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219003154] [2022-12-13 16:44:58,732 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 16:44:58,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:44:58,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:44:58,733 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:44:58,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-13 16:45:04,975 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2022-12-13 16:45:04,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:45:04,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 2186 conjuncts, 255 conjunts are in the unsatisfiable core [2022-12-13 16:45:04,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:45:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:45:05,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:45:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:45:37,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219003154] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:45:37,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:45:37,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 255, 255] total 509 [2022-12-13 16:45:37,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795984503] [2022-12-13 16:45:37,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:45:37,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 510 states [2022-12-13 16:45:37,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:45:37,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 510 interpolants. [2022-12-13 16:45:37,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65279, Invalid=194311, Unknown=0, NotChecked=0, Total=259590 [2022-12-13 16:45:37,663 INFO L87 Difference]: Start difference. First operand 1347 states and 1474 transitions. Second operand has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:46:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:46:31,814 INFO L93 Difference]: Finished difference Result 2557 states and 2684 transitions. [2022-12-13 16:46:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 510 states. [2022-12-13 16:46:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 0 states have call successors, (0), 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 890 [2022-12-13 16:46:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:46:31,818 INFO L225 Difference]: With dead ends: 2557 [2022-12-13 16:46:31,818 INFO L226 Difference]: Without dead ends: 2556 [2022-12-13 16:46:31,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2287 GetRequests, 1525 SyntacticMatches, 0 SemanticMatches, 762 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127766 ImplicationChecksByTransitivity, 65.1s TimeCoverageRelationStatistics Valid=162688, Invalid=420244, Unknown=0, NotChecked=0, Total=582932 [2022-12-13 16:46:31,842 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6536 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:46:31,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6536 Valid, 1526 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 16:46:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2022-12-13 16:46:31,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 1794. [2022-12-13 16:46:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1790 states have (on average 1.1441340782122904) internal successors, (2048), 1793 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:46:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2048 transitions. [2022-12-13 16:46:31,879 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2048 transitions. Word has length 890 [2022-12-13 16:46:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:46:31,879 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 2048 transitions. [2022-12-13 16:46:31,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:46:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2048 transitions. [2022-12-13 16:46:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2022-12-13 16:46:31,885 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:46:31,885 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:31,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-12-13 16:46:32,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:46:32,085 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:46:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash 778230336, now seen corresponding path program 7 times [2022-12-13 16:46:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:32,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185234584] [2022-12-13 16:46:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:47:07,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:47:07,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185234584] [2022-12-13 16:47:07,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185234584] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:47:07,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316906608] [2022-12-13 16:47:07,534 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 16:47:07,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:47:07,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:47:07,535 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:47:07,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-12-13 16:47:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:07,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 511 conjunts are in the unsatisfiable core [2022-12-13 16:47:07,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:47:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:47:37,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:48:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:48:28,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316906608] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:48:28,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:48:28,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 383, 383] total 1022 [2022-12-13 16:48:28,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114185086] [2022-12-13 16:48:28,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:48:28,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1023 states [2022-12-13 16:48:28,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:48:28,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1023 interpolants. [2022-12-13 16:48:28,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139971, Invalid=905535, Unknown=0, NotChecked=0, Total=1045506 [2022-12-13 16:48:28,090 INFO L87 Difference]: Start difference. First operand 1794 states and 2048 transitions. Second operand has 1023 states, 1022 states have (on average 2.6291585127201564) internal successors, (2687), 1023 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:50:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:50:33,257 INFO L93 Difference]: Finished difference Result 2441 states and 2568 transitions. [2022-12-13 16:50:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 765 states. [2022-12-13 16:50:33,258 INFO L78 Accepts]: Start accepts. Automaton has has 1023 states, 1022 states have (on average 2.6291585127201564) internal successors, (2687), 1023 states have internal predecessors, (2687), 0 states have call successors, (0), 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 897 [2022-12-13 16:50:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:50:33,262 INFO L225 Difference]: With dead ends: 2441 [2022-12-13 16:50:33,262 INFO L226 Difference]: Without dead ends: 1928 [2022-12-13 16:50:33,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2558 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 1529 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096264 ImplicationChecksByTransitivity, 149.3s TimeCoverageRelationStatistics Valid=360320, Invalid=1982110, Unknown=0, NotChecked=0, Total=2342430 [2022-12-13 16:50:33,379 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6812 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 3156 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6812 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 4371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 3156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:50:33,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6812 Valid, 1128 Invalid, 4371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1215 Valid, 3156 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-13 16:50:33,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-12-13 16:50:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1797. [2022-12-13 16:50:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1793 states have (on average 1.0736196319018405) internal successors, (1925), 1796 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:50:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 1925 transitions. [2022-12-13 16:50:33,434 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 1925 transitions. Word has length 897 [2022-12-13 16:50:33,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:50:33,435 INFO L495 AbstractCegarLoop]: Abstraction has 1797 states and 1925 transitions. [2022-12-13 16:50:33,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 1023 states, 1022 states have (on average 2.6291585127201564) internal successors, (2687), 1023 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:50:33,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 1925 transitions. [2022-12-13 16:50:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2022-12-13 16:50:33,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:50:33,451 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2022-12-13 16:50:33,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-12-13 16:50:33,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 16:50:33,651 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 16:50:33,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:50:33,652 INFO L85 PathProgramCache]: Analyzing trace with hash 750545773, now seen corresponding path program 7 times [2022-12-13 16:50:33,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:50:33,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144275086] [2022-12-13 16:50:33,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:50:33,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:50:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:52:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:52:11,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:52:11,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144275086] [2022-12-13 16:52:11,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144275086] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:52:11,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775216001] [2022-12-13 16:52:11,908 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 16:52:11,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:52:11,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:52:11,909 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:52:11,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c43e64-7f27-4f18-97c7-1b7bec257111/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-12-13 16:52:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:52:12,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 3268 conjuncts, 384 conjunts are in the unsatisfiable core [2022-12-13 16:52:12,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:52:13,246 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:52:13,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:53:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:53:27,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775216001] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:53:27,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 16:53:27,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 765 [2022-12-13 16:53:27,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93769763] [2022-12-13 16:53:27,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 16:53:27,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2022-12-13 16:53:27,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:53:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2022-12-13 16:53:27,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2022-12-13 16:53:27,629 INFO L87 Difference]: Start difference. First operand 1797 states and 1925 transitions. Second operand has 766 states, 765 states have (on average 3.4901960784313726) internal successors, (2670), 766 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)