./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/recHanoi03-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi03-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:38:28,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:38:28,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:38:28,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:38:28,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:38:28,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:38:28,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:38:28,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:38:28,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:38:28,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:38:28,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:38:28,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:38:28,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:38:28,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:38:28,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:38:28,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:38:28,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:38:28,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:38:28,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:38:28,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:38:28,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:38:28,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:38:28,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:38:28,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:38:28,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:38:28,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:38:28,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:38:28,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:38:28,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:38:28,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:38:28,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:38:28,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:38:28,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:38:28,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:38:28,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:38:28,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:38:28,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:38:28,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:38:28,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:38:28,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:38:28,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:38:28,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:38:28,684 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:38:28,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:38:28,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:38:28,691 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:38:28,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:38:28,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:38:28,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:38:28,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:38:28,695 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:38:28,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:38:28,696 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:38:28,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:38:28,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:38:28,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:38:28,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:38:28,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:38:28,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:38:28,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:38:28,698 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:38:28,699 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:38:28,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:38:28,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:38:28,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:38:28,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:38:28,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:38:28,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:38:28,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:38:28,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:38:28,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:38:28,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:38:28,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:38:28,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:38:28,704 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:38:28,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:38:28,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:38:28,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 [2022-11-18 19:38:28,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:38:29,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:38:29,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:38:29,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:38:29,024 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:38:29,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive/recHanoi03-2.c [2022-11-18 19:38:29,122 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/data/9662d60e5/25cc708a1f9d435ea9335e1a02b65374/FLAGc2d4dc83c [2022-11-18 19:38:29,566 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:38:29,567 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/sv-benchmarks/c/recursive/recHanoi03-2.c [2022-11-18 19:38:29,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/data/9662d60e5/25cc708a1f9d435ea9335e1a02b65374/FLAGc2d4dc83c [2022-11-18 19:38:29,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/data/9662d60e5/25cc708a1f9d435ea9335e1a02b65374 [2022-11-18 19:38:29,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:38:29,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:38:29,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:38:29,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:38:30,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:38:30,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:29" (1/1) ... [2022-11-18 19:38:30,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4508f067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30, skipping insertion in model container [2022-11-18 19:38:30,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:29" (1/1) ... [2022-11-18 19:38:30,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:38:30,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:38:30,312 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2022-11-18 19:38:30,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:38:30,329 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:38:30,359 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2022-11-18 19:38:30,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:38:30,376 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:38:30,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30 WrapperNode [2022-11-18 19:38:30,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:38:30,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:38:30,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:38:30,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:38:30,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,418 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-11-18 19:38:30,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:38:30,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:38:30,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:38:30,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:38:30,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:38:30,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:38:30,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:38:30,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:38:30,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (1/1) ... [2022-11-18 19:38:30,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:38:30,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:30,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:38:30,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:38:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:38:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2022-11-18 19:38:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2022-11-18 19:38:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:38:30,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:38:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:38:30,630 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:38:30,632 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:38:30,780 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:38:30,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:38:30,788 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:38:30,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:38:30 BoogieIcfgContainer [2022-11-18 19:38:30,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:38:30,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:38:30,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:38:30,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:38:30,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:38:29" (1/3) ... [2022-11-18 19:38:30,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282b88e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:38:30, skipping insertion in model container [2022-11-18 19:38:30,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:30" (2/3) ... [2022-11-18 19:38:30,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282b88e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:38:30, skipping insertion in model container [2022-11-18 19:38:30,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:38:30" (3/3) ... [2022-11-18 19:38:30,805 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2022-11-18 19:38:30,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:38:30,830 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 19:38:30,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:38:30,900 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;@30762c35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:38:30,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 19:38:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:38:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:38:30,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:30,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:30,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:30,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:30,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1325924785, now seen corresponding path program 1 times [2022-11-18 19:38:30,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:30,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701600369] [2022-11-18 19:38:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:30,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:31,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:31,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701600369] [2022-11-18 19:38:31,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701600369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:31,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:31,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:38:31,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312348592] [2022-11-18 19:38:31,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:31,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:38:31,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:31,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:38:31,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:38:31,264 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:31,381 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-11-18 19:38:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:38:31,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 19:38:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:31,392 INFO L225 Difference]: With dead ends: 34 [2022-11-18 19:38:31,393 INFO L226 Difference]: Without dead ends: 21 [2022-11-18 19:38:31,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:38:31,399 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:31,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 52 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:31,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-18 19:38:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-18 19:38:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:38:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-18 19:38:31,470 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2022-11-18 19:38:31,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:31,471 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-18 19:38:31,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:31,472 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-18 19:38:31,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:38:31,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:31,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:31,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:38:31,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:31,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:31,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1846004663, now seen corresponding path program 1 times [2022-11-18 19:38:31,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:31,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433192600] [2022-11-18 19:38:31,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:31,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:31,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:31,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433192600] [2022-11-18 19:38:31,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433192600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:31,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:31,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:38:31,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976738534] [2022-11-18 19:38:31,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:31,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:38:31,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:31,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:38:31,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:38:31,617 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:31,688 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-11-18 19:38:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:38:31,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 19:38:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:31,692 INFO L225 Difference]: With dead ends: 40 [2022-11-18 19:38:31,693 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 19:38:31,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:38:31,695 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:31,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 59 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:38:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 19:38:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2022-11-18 19:38:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:38:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-11-18 19:38:31,708 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2022-11-18 19:38:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:31,708 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-18 19:38:31,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-18 19:38:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:38:31,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:31,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:31,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:38:31,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:31,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash -498171083, now seen corresponding path program 1 times [2022-11-18 19:38:31,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:31,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160888998] [2022-11-18 19:38:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:31,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:31,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:31,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160888998] [2022-11-18 19:38:31,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160888998] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:31,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063036070] [2022-11-18 19:38:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:31,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:31,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:31,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:31,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:38:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:31,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:38:31,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:32,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:32,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063036070] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:32,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:32,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 19:38:32,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333474850] [2022-11-18 19:38:32,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:32,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:38:32,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:32,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:38:32,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:38:32,153 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:32,432 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2022-11-18 19:38:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:38:32,433 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 19:38:32,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:32,439 INFO L225 Difference]: With dead ends: 92 [2022-11-18 19:38:32,441 INFO L226 Difference]: Without dead ends: 91 [2022-11-18 19:38:32,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:38:32,449 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 164 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:32,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 132 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-18 19:38:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2022-11-18 19:38:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 56 states have internal predecessors, (76), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 19:38:32,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-11-18 19:38:32,477 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 13 [2022-11-18 19:38:32,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:32,478 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-11-18 19:38:32,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-18 19:38:32,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:38:32,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:32,480 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:32,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:32,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:32,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:32,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:32,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2001544150, now seen corresponding path program 1 times [2022-11-18 19:38:32,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:32,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431423864] [2022-11-18 19:38:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:38:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 19:38:32,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:32,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431423864] [2022-11-18 19:38:32,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431423864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:32,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:32,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:38:32,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116626579] [2022-11-18 19:38:32,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:32,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:38:32,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:32,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:38:32,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:32,850 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:38:32,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:32,881 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2022-11-18 19:38:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:38:32,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-18 19:38:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:32,884 INFO L225 Difference]: With dead ends: 104 [2022-11-18 19:38:32,884 INFO L226 Difference]: Without dead ends: 93 [2022-11-18 19:38:32,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:32,886 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:32,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:38:32,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-18 19:38:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-11-18 19:38:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 78 states have internal predecessors, (98), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-18 19:38:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2022-11-18 19:38:32,901 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2022-11-18 19:38:32,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:32,902 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2022-11-18 19:38:32,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:38:32,903 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2022-11-18 19:38:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 19:38:32,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:32,904 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-11-18 19:38:32,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:38:32,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:32,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:32,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1663195447, now seen corresponding path program 2 times [2022-11-18 19:38:32,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:32,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243288750] [2022-11-18 19:38:32,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:32,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:33,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:33,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243288750] [2022-11-18 19:38:33,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243288750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:33,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231835695] [2022-11-18 19:38:33,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:38:33,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:33,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:33,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:38:33,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:38:33,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:38:33,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:38:33,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:33,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:33,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231835695] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:33,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:33,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-18 19:38:33,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169106091] [2022-11-18 19:38:33,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:33,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:38:33,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:33,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:38:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:38:33,673 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:34,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:34,236 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2022-11-18 19:38:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-18 19:38:34,237 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-18 19:38:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:34,244 INFO L225 Difference]: With dead ends: 248 [2022-11-18 19:38:34,245 INFO L226 Difference]: Without dead ends: 247 [2022-11-18 19:38:34,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1207, Unknown=0, NotChecked=0, Total=1722 [2022-11-18 19:38:34,249 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 529 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:34,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 271 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:38:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-18 19:38:34,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2022-11-18 19:38:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 174 states have internal predecessors, (224), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-18 19:38:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2022-11-18 19:38:34,297 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 28 [2022-11-18 19:38:34,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:34,298 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2022-11-18 19:38:34,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2022-11-18 19:38:34,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 19:38:34,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:34,301 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:34,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:34,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:34,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:34,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 907320634, now seen corresponding path program 1 times [2022-11-18 19:38:34,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:34,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149221019] [2022-11-18 19:38:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:34,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:38:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:34,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:38:34,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:34,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149221019] [2022-11-18 19:38:34,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149221019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:34,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284467341] [2022-11-18 19:38:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:34,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:34,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:34,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:34,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:38:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:34,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:38:34,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:38:34,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:38:34,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284467341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:34,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:34,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 19:38:34,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452578126] [2022-11-18 19:38:34,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:34,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:38:34,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:34,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:38:34,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:38:34,961 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 19:38:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:35,046 INFO L93 Difference]: Finished difference Result 400 states and 549 transitions. [2022-11-18 19:38:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:38:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 27 [2022-11-18 19:38:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:35,054 INFO L225 Difference]: With dead ends: 400 [2022-11-18 19:38:35,054 INFO L226 Difference]: Without dead ends: 398 [2022-11-18 19:38:35,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:38:35,058 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:35,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 90 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-18 19:38:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 377. [2022-11-18 19:38:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 315 states have (on average 1.253968253968254) internal successors, (395), 314 states have internal predecessors, (395), 12 states have call successors, (12), 11 states have call predecessors, (12), 46 states have return successors, (51), 51 states have call predecessors, (51), 11 states have call successors, (51) [2022-11-18 19:38:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 458 transitions. [2022-11-18 19:38:35,101 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 458 transitions. Word has length 27 [2022-11-18 19:38:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:35,101 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 458 transitions. [2022-11-18 19:38:35,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 19:38:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 458 transitions. [2022-11-18 19:38:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 19:38:35,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:35,103 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:35,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:35,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:35,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:35,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:35,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1937831374, now seen corresponding path program 1 times [2022-11-18 19:38:35,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:35,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926722513] [2022-11-18 19:38:35,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:35,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:38:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:38:35,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:35,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926722513] [2022-11-18 19:38:35,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926722513] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:35,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160460414] [2022-11-18 19:38:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:35,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:35,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:35,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:35,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:38:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:35,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:38:35,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:35,509 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:38:35,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:35,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160460414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:35,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:38:35,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 19:38:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366132913] [2022-11-18 19:38:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:35,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:38:35,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:35,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:38:35,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:38:35,513 INFO L87 Difference]: Start difference. First operand 377 states and 458 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:38:35,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:35,550 INFO L93 Difference]: Finished difference Result 377 states and 458 transitions. [2022-11-18 19:38:35,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:38:35,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-18 19:38:35,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:35,552 INFO L225 Difference]: With dead ends: 377 [2022-11-18 19:38:35,552 INFO L226 Difference]: Without dead ends: 333 [2022-11-18 19:38:35,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:38:35,554 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:35,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:38:35,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-18 19:38:35,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-11-18 19:38:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 279 states have (on average 1.060931899641577) internal successors, (296), 276 states have internal predecessors, (296), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2022-11-18 19:38:35,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 353 transitions. [2022-11-18 19:38:35,571 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 353 transitions. Word has length 28 [2022-11-18 19:38:35,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:35,571 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 353 transitions. [2022-11-18 19:38:35,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:38:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 353 transitions. [2022-11-18 19:38:35,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-18 19:38:35,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:35,574 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1] [2022-11-18 19:38:35,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:35,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:35,779 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:35,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:35,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1017748105, now seen corresponding path program 3 times [2022-11-18 19:38:35,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:35,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861243985] [2022-11-18 19:38:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:35,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:36,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861243985] [2022-11-18 19:38:36,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861243985] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:36,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992603869] [2022-11-18 19:38:36,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:38:36,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:36,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:36,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:36,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:38:36,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 19:38:36,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:38:36,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 19:38:36,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:36,596 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:36,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:37,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992603869] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:37,343 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:37,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-18 19:38:37,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035560704] [2022-11-18 19:38:37,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:37,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 19:38:37,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 19:38:37,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 19:38:37,346 INFO L87 Difference]: Start difference. First operand 333 states and 353 transitions. Second operand has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:38,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:38,827 INFO L93 Difference]: Finished difference Result 800 states and 833 transitions. [2022-11-18 19:38:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-18 19:38:38,828 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-18 19:38:38,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:38,834 INFO L225 Difference]: With dead ends: 800 [2022-11-18 19:38:38,834 INFO L226 Difference]: Without dead ends: 799 [2022-11-18 19:38:38,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2204, Invalid=5278, Unknown=0, NotChecked=0, Total=7482 [2022-11-18 19:38:38,839 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1049 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:38,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 423 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:38:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2022-11-18 19:38:38,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 777. [2022-11-18 19:38:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 651 states have (on average 1.0629800307219661) internal successors, (692), 648 states have internal predecessors, (692), 24 states have call successors, (24), 23 states have call predecessors, (24), 100 states have return successors, (105), 105 states have call predecessors, (105), 23 states have call successors, (105) [2022-11-18 19:38:38,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 821 transitions. [2022-11-18 19:38:38,880 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 821 transitions. Word has length 58 [2022-11-18 19:38:38,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:38,880 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 821 transitions. [2022-11-18 19:38:38,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 821 transitions. [2022-11-18 19:38:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 19:38:38,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:38,890 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:38,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:39,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 19:38:39,095 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:39,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1496867286, now seen corresponding path program 2 times [2022-11-18 19:38:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:39,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950714286] [2022-11-18 19:38:39,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:39,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:38:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 19:38:39,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:39,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950714286] [2022-11-18 19:38:39,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950714286] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:39,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636445324] [2022-11-18 19:38:39,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:38:39,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:39,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:39,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:39,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:38:39,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:38:39,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:38:39,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 19:38:39,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 19:38:39,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 19:38:40,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636445324] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:40,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:40,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-11-18 19:38:40,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794039633] [2022-11-18 19:38:40,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:40,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:38:40,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:40,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:38:40,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:38:40,349 INFO L87 Difference]: Start difference. First operand 777 states and 821 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 19:38:40,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:40,470 INFO L93 Difference]: Finished difference Result 1714 states and 1895 transitions. [2022-11-18 19:38:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 19:38:40,470 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 63 [2022-11-18 19:38:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:40,476 INFO L225 Difference]: With dead ends: 1714 [2022-11-18 19:38:40,476 INFO L226 Difference]: Without dead ends: 1416 [2022-11-18 19:38:40,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:38:40,479 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:40,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 94 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-11-18 19:38:40,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1416. [2022-11-18 19:38:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1203 states have (on average 1.029093931837074) internal successors, (1238), 1194 states have internal predecessors, (1238), 24 states have call successors, (24), 23 states have call predecessors, (24), 187 states have return successors, (198), 198 states have call predecessors, (198), 23 states have call successors, (198) [2022-11-18 19:38:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1460 transitions. [2022-11-18 19:38:40,520 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1460 transitions. Word has length 63 [2022-11-18 19:38:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:40,521 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 1460 transitions. [2022-11-18 19:38:40,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 19:38:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1460 transitions. [2022-11-18 19:38:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-18 19:38:40,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:40,525 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1] [2022-11-18 19:38:40,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:40,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:40,731 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:40,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 255962615, now seen corresponding path program 4 times [2022-11-18 19:38:40,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:40,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902907229] [2022-11-18 19:38:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:42,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:42,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902907229] [2022-11-18 19:38:42,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902907229] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:42,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527914082] [2022-11-18 19:38:42,407 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:38:42,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:42,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:42,409 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:42,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:38:42,499 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:38:42,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:38:42,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 19:38:42,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:42,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:45,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527914082] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:45,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:45,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-18 19:38:45,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459594258] [2022-11-18 19:38:45,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:45,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-18 19:38:45,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:45,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-18 19:38:45,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 19:38:45,250 INFO L87 Difference]: Start difference. First operand 1416 states and 1460 transitions. Second operand has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:49,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:49,703 INFO L93 Difference]: Finished difference Result 3359 states and 3428 transitions. [2022-11-18 19:38:49,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-11-18 19:38:49,704 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-11-18 19:38:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:49,717 INFO L225 Difference]: With dead ends: 3359 [2022-11-18 19:38:49,717 INFO L226 Difference]: Without dead ends: 3358 [2022-11-18 19:38:49,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7136 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=9119, Invalid=22033, Unknown=0, NotChecked=0, Total=31152 [2022-11-18 19:38:49,727 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 3331 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:49,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 1048 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 19:38:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2022-11-18 19:38:49,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3312. [2022-11-18 19:38:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 2811 states have (on average 1.0295268587691213) internal successors, (2894), 2802 states have internal predecessors, (2894), 48 states have call successors, (48), 47 states have call predecessors, (48), 451 states have return successors, (462), 462 states have call predecessors, (462), 47 states have call successors, (462) [2022-11-18 19:38:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 3404 transitions. [2022-11-18 19:38:49,813 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 3404 transitions. Word has length 118 [2022-11-18 19:38:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:49,814 INFO L495 AbstractCegarLoop]: Abstraction has 3312 states and 3404 transitions. [2022-11-18 19:38:49,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:49,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 3404 transitions. [2022-11-18 19:38:49,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 19:38:49,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:49,817 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:49,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:50,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:38:50,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:50,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1973780778, now seen corresponding path program 3 times [2022-11-18 19:38:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:50,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206010986] [2022-11-18 19:38:50,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:50,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:50,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:38:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:50,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:50,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:50,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:38:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,380 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 19:38:51,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:51,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206010986] [2022-11-18 19:38:51,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206010986] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:51,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988751918] [2022-11-18 19:38:51,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:38:51,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:51,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:51,382 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:51,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:38:51,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 19:38:51,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:38:51,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 19:38:51,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 19:38:51,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 19:38:56,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988751918] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:38:56,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:38:56,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-11-18 19:38:56,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646189124] [2022-11-18 19:38:56,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:56,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 19:38:56,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:56,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 19:38:56,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 19:38:56,796 INFO L87 Difference]: Start difference. First operand 3312 states and 3404 transitions. Second operand has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-18 19:38:57,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:57,056 INFO L93 Difference]: Finished difference Result 7201 states and 7856 transitions. [2022-11-18 19:38:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-18 19:38:57,057 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2022-11-18 19:38:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:57,082 INFO L225 Difference]: With dead ends: 7201 [2022-11-18 19:38:57,082 INFO L226 Difference]: Without dead ends: 5850 [2022-11-18 19:38:57,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 19:38:57,090 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 99 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:57,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 108 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:38:57,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2022-11-18 19:38:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5850. [2022-11-18 19:38:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5850 states, 4995 states have (on average 1.0142142142142143) internal successors, (5066), 4974 states have internal predecessors, (5066), 48 states have call successors, (48), 47 states have call predecessors, (48), 805 states have return successors, (828), 828 states have call predecessors, (828), 47 states have call successors, (828) [2022-11-18 19:38:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 5942 transitions. [2022-11-18 19:38:57,256 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 5942 transitions. Word has length 135 [2022-11-18 19:38:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:57,257 INFO L495 AbstractCegarLoop]: Abstraction has 5850 states and 5942 transitions. [2022-11-18 19:38:57,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-18 19:38:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 5942 transitions. [2022-11-18 19:38:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-18 19:38:57,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:57,262 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1] [2022-11-18 19:38:57,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:57,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:57,469 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:38:57,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:57,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1181417737, now seen corresponding path program 5 times [2022-11-18 19:38:57,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:57,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348090634] [2022-11-18 19:38:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:57,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:02,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:02,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348090634] [2022-11-18 19:39:02,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348090634] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:02,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389170417] [2022-11-18 19:39:02,957 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:39:02,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:02,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:02,963 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:02,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:39:03,274 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 19:39:03,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:03,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 19:39:03,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:03,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:11,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:11,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389170417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:11,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:39:11,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-18 19:39:11,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623165730] [2022-11-18 19:39:11,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:11,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-18 19:39:11,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:11,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-18 19:39:11,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 19:39:11,583 INFO L87 Difference]: Start difference. First operand 5850 states and 5942 transitions. Second operand has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:28,627 INFO L93 Difference]: Finished difference Result 13769 states and 13910 transitions. [2022-11-18 19:39:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2022-11-18 19:39:28,629 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2022-11-18 19:39:28,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:28,672 INFO L225 Difference]: With dead ends: 13769 [2022-11-18 19:39:28,672 INFO L226 Difference]: Without dead ends: 13768 [2022-11-18 19:39:28,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30092 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=37097, Invalid=89995, Unknown=0, NotChecked=0, Total=127092 [2022-11-18 19:39:28,691 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 7168 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 1669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7170 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 3573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1669 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:28,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7170 Valid, 2124 Invalid, 3573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1669 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 19:39:28,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13768 states. [2022-11-18 19:39:28,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13768 to 13674. [2022-11-18 19:39:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13674 states, 11667 states have (on average 1.0143138767463786) internal successors, (11834), 11646 states have internal predecessors, (11834), 96 states have call successors, (96), 95 states have call predecessors, (96), 1909 states have return successors, (1932), 1932 states have call predecessors, (1932), 95 states have call successors, (1932) [2022-11-18 19:39:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13674 states to 13674 states and 13862 transitions. [2022-11-18 19:39:29,056 INFO L78 Accepts]: Start accepts. Automaton has 13674 states and 13862 transitions. Word has length 238 [2022-11-18 19:39:29,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:29,057 INFO L495 AbstractCegarLoop]: Abstraction has 13674 states and 13862 transitions. [2022-11-18 19:39:29,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:29,058 INFO L276 IsEmpty]: Start isEmpty. Operand 13674 states and 13862 transitions. [2022-11-18 19:39:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-18 19:39:29,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:29,068 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:29,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:29,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:29,280 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:39:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1518549206, now seen corresponding path program 4 times [2022-11-18 19:39:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:29,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90808892] [2022-11-18 19:39:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:29,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:39:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:30,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:31,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:32,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:33,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:34,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:34,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:39:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2022-11-18 19:39:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:35,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90808892] [2022-11-18 19:39:35,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90808892] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:35,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166443739] [2022-11-18 19:39:35,716 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:39:35,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:35,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:35,719 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:35,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 19:39:35,942 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:39:35,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:35,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-18 19:39:35,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2022-11-18 19:39:36,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2022-11-18 19:40:23,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166443739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:23,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:23,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2022-11-18 19:40:23,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396621908] [2022-11-18 19:40:23,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:23,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-18 19:40:23,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:23,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-18 19:40:23,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 19:40:23,918 INFO L87 Difference]: Start difference. First operand 13674 states and 13862 transitions. Second operand has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-18 19:40:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:24,241 INFO L93 Difference]: Finished difference Result 18955 states and 19902 transitions. [2022-11-18 19:40:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-18 19:40:24,242 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 279 [2022-11-18 19:40:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:24,299 INFO L225 Difference]: With dead ends: 18955 [2022-11-18 19:40:24,300 INFO L226 Difference]: Without dead ends: 17494 [2022-11-18 19:40:24,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 555 SyntacticMatches, 32 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3426 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 19:40:24,311 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 90 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:24,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 151 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:40:24,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17494 states. [2022-11-18 19:40:24,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17494 to 17494. [2022-11-18 19:40:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17494 states, 14947 states have (on average 1.0106375861376864) internal successors, (15106), 14918 states have internal predecessors, (15106), 96 states have call successors, (96), 95 states have call predecessors, (96), 2449 states have return successors, (2480), 2480 states have call predecessors, (2480), 95 states have call successors, (2480) [2022-11-18 19:40:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17494 states to 17494 states and 17682 transitions. [2022-11-18 19:40:24,681 INFO L78 Accepts]: Start accepts. Automaton has 17494 states and 17682 transitions. Word has length 279 [2022-11-18 19:40:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:24,681 INFO L495 AbstractCegarLoop]: Abstraction has 17494 states and 17682 transitions. [2022-11-18 19:40:24,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-18 19:40:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 17494 states and 17682 transitions. [2022-11-18 19:40:24,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-18 19:40:24,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:24,700 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:24,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:24,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:24,906 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:40:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:24,907 INFO L85 PathProgramCache]: Analyzing trace with hash 56511274, now seen corresponding path program 5 times [2022-11-18 19:40:24,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:24,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299148397] [2022-11-18 19:40:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:24,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:25,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:40:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:28,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:29,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:31,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:33,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:33,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:34,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:34,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:40:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5552 backedges. 3105 proven. 242 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2022-11-18 19:40:36,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:36,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299148397] [2022-11-18 19:40:36,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299148397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:36,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185557937] [2022-11-18 19:40:36,089 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:40:36,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:36,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:36,090 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:36,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 19:40:36,990 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-18 19:40:36,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:36,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-18 19:40:37,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 5552 backedges. 3165 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-11-18 19:40:37,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5552 backedges. 3165 proven. 1922 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-11-18 19:42:52,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185557937] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:42:52,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:42:52,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37, 67] total 71 [2022-11-18 19:42:52,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464269122] [2022-11-18 19:42:52,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:52,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-11-18 19:42:52,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:52,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-11-18 19:42:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1169, Invalid=3801, Unknown=0, NotChecked=0, Total=4970 [2022-11-18 19:42:52,669 INFO L87 Difference]: Start difference. First operand 17494 states and 17682 transitions. Second operand has 71 states, 70 states have (on average 4.628571428571429) internal successors, (324), 70 states have internal predecessors, (324), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2022-11-18 19:42:53,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:53,824 INFO L93 Difference]: Finished difference Result 17964 states and 18153 transitions. [2022-11-18 19:42:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 19:42:53,825 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.628571428571429) internal successors, (324), 70 states have internal predecessors, (324), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) Word has length 375 [2022-11-18 19:42:53,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:53,829 INFO L225 Difference]: With dead ends: 17964 [2022-11-18 19:42:53,829 INFO L226 Difference]: Without dead ends: 480 [2022-11-18 19:42:53,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 742 SyntacticMatches, 35 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3348, Invalid=7158, Unknown=0, NotChecked=0, Total=10506 [2022-11-18 19:42:53,853 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 147 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:53,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1211 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:42:53,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-18 19:42:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2022-11-18 19:42:53,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 383 states have (on average 1.0026109660574412) internal successors, (384), 383 states have internal predecessors, (384), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 479 transitions. [2022-11-18 19:42:53,881 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 479 transitions. Word has length 375 [2022-11-18 19:42:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:53,882 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 479 transitions. [2022-11-18 19:42:53,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.628571428571429) internal successors, (324), 70 states have internal predecessors, (324), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2022-11-18 19:42:53,882 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 479 transitions. [2022-11-18 19:42:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-11-18 19:42:53,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:53,891 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1] [2022-11-18 19:42:53,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:54,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:54,101 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:42:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:54,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1135517943, now seen corresponding path program 6 times [2022-11-18 19:42:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:54,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876859757] [2022-11-18 19:42:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:12,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:12,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876859757] [2022-11-18 19:43:12,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876859757] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:43:12,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122392989] [2022-11-18 19:43:12,834 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:43:12,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:43:12,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:12,839 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:43:12,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 19:43:15,516 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-18 19:43:15,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:43:15,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-18 19:43:15,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:16,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:43:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:46,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122392989] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:43:46,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:43:46,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-18 19:43:46,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61304161] [2022-11-18 19:43:46,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:43:46,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-18 19:43:46,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:46,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-18 19:43:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-11-18 19:43:46,699 INFO L87 Difference]: Start difference. First operand 479 states and 479 transitions. Second operand has 384 states, 381 states have (on average 2.005249343832021) internal successors, (764), 194 states have internal predecessors, (764), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:44:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:44:24,748 INFO L93 Difference]: Finished difference Result 961 states and 1056 transitions. [2022-11-18 19:44:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-18 19:44:24,749 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 2.005249343832021) internal successors, (764), 194 states have internal predecessors, (764), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 478 [2022-11-18 19:44:24,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:44:24,752 INFO L225 Difference]: With dead ends: 961 [2022-11-18 19:44:24,753 INFO L226 Difference]: Without dead ends: 960 [2022-11-18 19:44:24,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 763 SyntacticMatches, 1 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 62.6s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-11-18 19:44:24,779 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4181 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4181 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:44:24,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4181 Valid, 58 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 19:44:24,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-11-18 19:44:24,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 959. [2022-11-18 19:44:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 767 states have (on average 1.001303780964798) internal successors, (768), 767 states have internal predecessors, (768), 191 states have call successors, (191), 191 states have call predecessors, (191), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:44:24,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 959 transitions. [2022-11-18 19:44:24,831 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 959 transitions. Word has length 478 [2022-11-18 19:44:24,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:44:24,832 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 959 transitions. [2022-11-18 19:44:24,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 2.005249343832021) internal successors, (764), 194 states have internal predecessors, (764), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:44:24,833 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 959 transitions. [2022-11-18 19:44:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2022-11-18 19:44:24,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:44:24,867 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 1, 1, 1, 1, 1] [2022-11-18 19:44:24,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-18 19:44:25,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:44:25,087 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 19:44:25,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:44:25,087 INFO L85 PathProgramCache]: Analyzing trace with hash 162391287, now seen corresponding path program 7 times [2022-11-18 19:44:25,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:44:25,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51219247] [2022-11-18 19:44:25,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:25,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:44:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:54,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:54,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51219247] [2022-11-18 19:45:54,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51219247] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:54,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136556189] [2022-11-18 19:45:54,894 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:45:54,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:54,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:54,901 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:54,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2290b96-89c6-439c-8a3f-873381cff635/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 19:45:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:57,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 384 conjunts are in the unsatisfiable core [2022-11-18 19:45:57,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:58,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:48:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:02,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136556189] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:48:02,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:48:02,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2022-11-18 19:48:02,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541129862] [2022-11-18 19:48:02,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:48:02,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2022-11-18 19:48:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2022-11-18 19:48:02,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2022-11-18 19:48:02,295 INFO L87 Difference]: Start difference. First operand 959 states and 959 transitions. Second operand has 768 states, 765 states have (on average 2.0026143790849673) internal successors, (1532), 386 states have internal predecessors, (1532), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)