./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS --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 64bit --witnessprinter.graph.data.programhash f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f --- 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-4e7fbc6 [2022-11-23 03:32:03,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:32:03,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:32:03,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:32:03,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:32:03,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:32:03,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:32:03,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:32:03,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:32:03,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:32:03,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:32:03,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:32:03,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:32:03,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:32:03,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:32:03,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:32:03,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:32:03,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:32:03,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:32:03,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:32:03,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:32:03,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:32:03,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:32:03,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:32:03,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:32:03,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:32:03,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:32:03,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:32:03,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:32:03,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:32:03,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:32:03,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:32:03,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:32:03,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:32:03,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:32:03,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:32:03,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:32:03,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:32:03,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:32:03,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:32:03,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:32:03,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:32:03,662 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:32:03,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:32:03,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:32:03,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:32:03,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:32:03,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:32:03,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:32:03,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:32:03,666 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:32:03,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:32:03,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:32:03,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:32:03,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:32:03,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:32:03,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:32:03,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:32:03,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:32:03,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:32:03,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:32:03,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:32:03,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:32:03,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:32:03,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:32:03,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:32:03,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:32:03,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:32:03,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:32:03,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:32:03,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:32:03,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:32:03,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:32:03,673 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:32:03,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:32:03,673 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f [2022-11-23 03:32:03,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:32:03,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:32:04,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:32:04,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:32:04,002 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:32:04,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-23 03:32:07,194 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:32:07,409 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:32:07,410 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-23 03:32:07,417 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/data/c60344fed/b424c7f03c2948ed8bb7402f0817af21/FLAG8b701441d [2022-11-23 03:32:07,436 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/data/c60344fed/b424c7f03c2948ed8bb7402f0817af21 [2022-11-23 03:32:07,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:32:07,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:32:07,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:32:07,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:32:07,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:32:07,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef0d386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07, skipping insertion in model container [2022-11-23 03:32:07,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:32:07,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:32:07,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:32:07,611 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:32:07,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:32:07,637 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:32:07,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07 WrapperNode [2022-11-23 03:32:07,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:32:07,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:32:07,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:32:07,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:32:07,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,664 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-23 03:32:07,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:32:07,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:32:07,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:32:07,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:32:07,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:32:07,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:32:07,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:32:07,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:32:07,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (1/1) ... [2022-11-23 03:32:07,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:32:07,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:07,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:32:07,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:32:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:32:07,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:32:07,857 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:32:07,859 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:32:08,036 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:32:08,043 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:32:08,044 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:32:08,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:08 BoogieIcfgContainer [2022-11-23 03:32:08,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:32:08,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:32:08,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:32:08,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:32:08,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:32:07" (1/3) ... [2022-11-23 03:32:08,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd6e839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:08, skipping insertion in model container [2022-11-23 03:32:08,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:07" (2/3) ... [2022-11-23 03:32:08,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd6e839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:08, skipping insertion in model container [2022-11-23 03:32:08,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:08" (3/3) ... [2022-11-23 03:32:08,057 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-23 03:32:08,079 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:32:08,080 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 03:32:08,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:32:08,173 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;@138e7942, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:32:08,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 03:32:08,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 03:32:08,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:08,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:32:08,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:08,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash 889513677, now seen corresponding path program 1 times [2022-11-23 03:32:08,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:08,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472459808] [2022-11-23 03:32:08,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:08,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:08,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:08,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472459808] [2022-11-23 03:32:08,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472459808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:08,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:08,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:32:08,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35760642] [2022-11-23 03:32:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:08,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:32:08,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:32:08,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:08,513 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:08,602 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-11-23 03:32:08,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:32:08,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 03:32:08,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:08,612 INFO L225 Difference]: With dead ends: 41 [2022-11-23 03:32:08,612 INFO L226 Difference]: Without dead ends: 27 [2022-11-23 03:32:08,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:08,634 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:08,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:08,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-23 03:32:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-11-23 03:32:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-23 03:32:08,739 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-11-23 03:32:08,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:08,740 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-23 03:32:08,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,740 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-23 03:32:08,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:32:08,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:08,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:08,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:32:08,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:08,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120262, now seen corresponding path program 1 times [2022-11-23 03:32:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:08,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555734458] [2022-11-23 03:32:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:08,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:08,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555734458] [2022-11-23 03:32:08,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555734458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:08,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:08,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:32:08,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644901663] [2022-11-23 03:32:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:08,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:32:08,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:08,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:32:08,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:08,796 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:08,847 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-23 03:32:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:32:08,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 03:32:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:08,848 INFO L225 Difference]: With dead ends: 41 [2022-11-23 03:32:08,849 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 03:32:08,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:08,851 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:08,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 03:32:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-11-23 03:32:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-11-23 03:32:08,859 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 7 [2022-11-23 03:32:08,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:08,859 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-11-23 03:32:08,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-11-23 03:32:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:32:08,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:08,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:08,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:32:08,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:08,862 INFO L85 PathProgramCache]: Analyzing trace with hash 124153334, now seen corresponding path program 1 times [2022-11-23 03:32:08,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:08,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282711090] [2022-11-23 03:32:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:08,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:08,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:08,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282711090] [2022-11-23 03:32:08,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282711090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:08,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:08,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:32:08,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747569366] [2022-11-23 03:32:08,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:08,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:32:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:08,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:32:08,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:08,924 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:08,946 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2022-11-23 03:32:08,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:32:08,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 03:32:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:08,948 INFO L225 Difference]: With dead ends: 37 [2022-11-23 03:32:08,948 INFO L226 Difference]: Without dead ends: 36 [2022-11-23 03:32:08,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:08,950 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:08,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-23 03:32:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-23 03:32:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2022-11-23 03:32:08,958 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 8 [2022-11-23 03:32:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:08,958 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2022-11-23 03:32:08,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2022-11-23 03:32:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:32:08,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:08,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:08,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:32:08,960 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash -446213880, now seen corresponding path program 1 times [2022-11-23 03:32:08,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:08,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177639376] [2022-11-23 03:32:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:08,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:09,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:09,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177639376] [2022-11-23 03:32:09,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177639376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:09,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:09,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:32:09,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863189958] [2022-11-23 03:32:09,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:09,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:32:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:09,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:32:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:09,005 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:09,041 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2022-11-23 03:32:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:32:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 03:32:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:09,043 INFO L225 Difference]: With dead ends: 42 [2022-11-23 03:32:09,043 INFO L226 Difference]: Without dead ends: 41 [2022-11-23 03:32:09,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:32:09,045 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:09,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 25 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:09,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-23 03:32:09,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-23 03:32:09,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 40 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:09,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2022-11-23 03:32:09,054 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 9 [2022-11-23 03:32:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:09,054 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2022-11-23 03:32:09,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2022-11-23 03:32:09,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:32:09,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:09,056 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:09,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:32:09,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:09,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:09,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1460084352, now seen corresponding path program 1 times [2022-11-23 03:32:09,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:09,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189414164] [2022-11-23 03:32:09,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:09,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:09,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189414164] [2022-11-23 03:32:09,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189414164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:09,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529485365] [2022-11-23 03:32:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:09,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:09,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:09,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:09,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:32:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:09,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:09,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:09,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:09,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529485365] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:09,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:09,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 03:32:09,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786707912] [2022-11-23 03:32:09,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:09,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:32:09,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:09,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:32:09,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:09,380 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:09,447 INFO L93 Difference]: Finished difference Result 82 states and 110 transitions. [2022-11-23 03:32:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:09,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 03:32:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:09,450 INFO L225 Difference]: With dead ends: 82 [2022-11-23 03:32:09,450 INFO L226 Difference]: Without dead ends: 80 [2022-11-23 03:32:09,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:09,452 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 38 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:09,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 29 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:09,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-23 03:32:09,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 51. [2022-11-23 03:32:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 50 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-11-23 03:32:09,471 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 12 [2022-11-23 03:32:09,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:09,472 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-11-23 03:32:09,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:09,472 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-11-23 03:32:09,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 03:32:09,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:09,473 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:09,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:09,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:09,674 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:09,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:09,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1339835373, now seen corresponding path program 1 times [2022-11-23 03:32:09,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:09,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318198543] [2022-11-23 03:32:09,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:09,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:09,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318198543] [2022-11-23 03:32:09,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318198543] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:09,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978018199] [2022-11-23 03:32:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:09,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:09,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:32:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:09,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:09,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:09,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:09,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978018199] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:09,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:09,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 03:32:09,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414200485] [2022-11-23 03:32:09,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:09,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:32:09,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:32:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:09,900 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:10,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:10,010 INFO L93 Difference]: Finished difference Result 125 states and 168 transitions. [2022-11-23 03:32:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:10,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-23 03:32:10,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:10,016 INFO L225 Difference]: With dead ends: 125 [2022-11-23 03:32:10,016 INFO L226 Difference]: Without dead ends: 123 [2022-11-23 03:32:10,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:10,018 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:10,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 42 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:10,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-23 03:32:10,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 100. [2022-11-23 03:32:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 99 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 128 transitions. [2022-11-23 03:32:10,043 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 128 transitions. Word has length 13 [2022-11-23 03:32:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:10,044 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 128 transitions. [2022-11-23 03:32:10,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 128 transitions. [2022-11-23 03:32:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:32:10,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:10,045 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:32:10,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:10,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 03:32:10,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:10,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash -908393425, now seen corresponding path program 1 times [2022-11-23 03:32:10,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:10,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021982034] [2022-11-23 03:32:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:10,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:10,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021982034] [2022-11-23 03:32:10,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021982034] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:10,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167622836] [2022-11-23 03:32:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:10,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:10,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:10,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:10,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:32:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:10,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:10,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:10,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:10,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167622836] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:10,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:10,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 03:32:10,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413951745] [2022-11-23 03:32:10,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:10,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:32:10,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:10,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:32:10,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:10,498 INFO L87 Difference]: Start difference. First operand 100 states and 128 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:10,570 INFO L93 Difference]: Finished difference Result 213 states and 273 transitions. [2022-11-23 03:32:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:10,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 03:32:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:10,572 INFO L225 Difference]: With dead ends: 213 [2022-11-23 03:32:10,573 INFO L226 Difference]: Without dead ends: 212 [2022-11-23 03:32:10,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:10,574 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:10,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 53 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-23 03:32:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2022-11-23 03:32:10,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.2281553398058251) internal successors, (253), 209 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 253 transitions. [2022-11-23 03:32:10,608 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 253 transitions. Word has length 15 [2022-11-23 03:32:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:10,608 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 253 transitions. [2022-11-23 03:32:10,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:10,609 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 253 transitions. [2022-11-23 03:32:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 03:32:10,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:10,610 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-23 03:32:10,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:10,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:10,815 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:10,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:10,815 INFO L85 PathProgramCache]: Analyzing trace with hash -310064461, now seen corresponding path program 1 times [2022-11-23 03:32:10,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:10,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042655902] [2022-11-23 03:32:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:10,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:10,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:10,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042655902] [2022-11-23 03:32:10,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042655902] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:10,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428369655] [2022-11-23 03:32:10,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:10,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:10,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:10,897 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:10,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:32:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:10,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:32:10,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:10,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:11,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428369655] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:11,059 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:11,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-23 03:32:11,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374202413] [2022-11-23 03:32:11,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:11,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:32:11,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:11,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:32:11,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:32:11,062 INFO L87 Difference]: Start difference. First operand 210 states and 253 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:11,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:11,154 INFO L93 Difference]: Finished difference Result 411 states and 525 transitions. [2022-11-23 03:32:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:32:11,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-23 03:32:11,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:11,157 INFO L225 Difference]: With dead ends: 411 [2022-11-23 03:32:11,157 INFO L226 Difference]: Without dead ends: 410 [2022-11-23 03:32:11,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:32:11,162 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 43 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:11,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 50 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:11,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-23 03:32:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 342. [2022-11-23 03:32:11,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 338 states have (on average 1.2633136094674555) internal successors, (427), 341 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 427 transitions. [2022-11-23 03:32:11,227 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 427 transitions. Word has length 18 [2022-11-23 03:32:11,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:11,227 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 427 transitions. [2022-11-23 03:32:11,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 427 transitions. [2022-11-23 03:32:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 03:32:11,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:11,231 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2022-11-23 03:32:11,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 03:32:11,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:11,436 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:11,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:11,436 INFO L85 PathProgramCache]: Analyzing trace with hash 377077538, now seen corresponding path program 2 times [2022-11-23 03:32:11,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:11,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534341416] [2022-11-23 03:32:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:11,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:11,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:11,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534341416] [2022-11-23 03:32:11,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534341416] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:11,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824685069] [2022-11-23 03:32:11,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:32:11,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:11,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:11,526 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:11,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:32:11,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:32:11,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:11,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:32:11,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:11,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:11,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824685069] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:11,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:11,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-23 03:32:11,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257041566] [2022-11-23 03:32:11,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:11,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:32:11,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:11,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:32:11,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:11,786 INFO L87 Difference]: Start difference. First operand 342 states and 427 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:11,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:11,936 INFO L93 Difference]: Finished difference Result 887 states and 1204 transitions. [2022-11-23 03:32:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:32:11,937 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 03:32:11,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:11,941 INFO L225 Difference]: With dead ends: 887 [2022-11-23 03:32:11,941 INFO L226 Difference]: Without dead ends: 885 [2022-11-23 03:32:11,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:11,945 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 70 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:11,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 80 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:11,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-11-23 03:32:11,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 582. [2022-11-23 03:32:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 578 states have (on average 1.2802768166089966) internal successors, (740), 581 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:11,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 740 transitions. [2022-11-23 03:32:11,986 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 740 transitions. Word has length 31 [2022-11-23 03:32:11,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:11,986 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 740 transitions. [2022-11-23 03:32:11,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:11,987 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 740 transitions. [2022-11-23 03:32:11,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 03:32:11,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:11,993 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2022-11-23 03:32:12,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-23 03:32:12,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:12,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:12,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1594263076, now seen corresponding path program 2 times [2022-11-23 03:32:12,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:12,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967802300] [2022-11-23 03:32:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:12,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:12,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:12,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967802300] [2022-11-23 03:32:12,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967802300] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:12,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653129761] [2022-11-23 03:32:12,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:32:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:12,301 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:12,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:32:12,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:32:12,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:12,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:32:12,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:12,398 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:12,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:12,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653129761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:12,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:12,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-23 03:32:12,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286102072] [2022-11-23 03:32:12,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:12,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:32:12,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:12,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:32:12,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:12,521 INFO L87 Difference]: Start difference. First operand 582 states and 740 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:12,648 INFO L93 Difference]: Finished difference Result 1688 states and 2178 transitions. [2022-11-23 03:32:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:32:12,648 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-23 03:32:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:12,654 INFO L225 Difference]: With dead ends: 1688 [2022-11-23 03:32:12,655 INFO L226 Difference]: Without dead ends: 1687 [2022-11-23 03:32:12,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:12,656 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 59 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:12,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 92 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-11-23 03:32:12,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1683. [2022-11-23 03:32:12,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1679 states have (on average 1.1888028588445503) internal successors, (1996), 1682 states have internal predecessors, (1996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:12,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1996 transitions. [2022-11-23 03:32:12,751 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1996 transitions. Word has length 33 [2022-11-23 03:32:12,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:12,751 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 1996 transitions. [2022-11-23 03:32:12,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1996 transitions. [2022-11-23 03:32:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-23 03:32:12,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:12,753 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1] [2022-11-23 03:32:12,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:12,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 03:32:12,958 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:12,958 INFO L85 PathProgramCache]: Analyzing trace with hash -726829569, now seen corresponding path program 2 times [2022-11-23 03:32:12,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:12,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165681302] [2022-11-23 03:32:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:12,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:13,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:13,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165681302] [2022-11-23 03:32:13,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165681302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774648107] [2022-11-23 03:32:13,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:32:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:13,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:13,131 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:13,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:32:13,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:32:13,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:13,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 03:32:13,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:13,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:13,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774648107] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:13,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:13,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-23 03:32:13,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959556901] [2022-11-23 03:32:13,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:13,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:32:13,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:13,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:32:13,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:32:13,434 INFO L87 Difference]: Start difference. First operand 1683 states and 1996 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:13,767 INFO L93 Difference]: Finished difference Result 3501 states and 4319 transitions. [2022-11-23 03:32:13,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 03:32:13,767 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-11-23 03:32:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:13,780 INFO L225 Difference]: With dead ends: 3501 [2022-11-23 03:32:13,780 INFO L226 Difference]: Without dead ends: 3500 [2022-11-23 03:32:13,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:32:13,783 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 142 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:13,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 98 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2022-11-23 03:32:13,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 2130. [2022-11-23 03:32:13,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2126 states have (on average 1.2074317968015051) internal successors, (2567), 2129 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2567 transitions. [2022-11-23 03:32:13,944 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2567 transitions. Word has length 42 [2022-11-23 03:32:13,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:13,945 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 2567 transitions. [2022-11-23 03:32:13,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2567 transitions. [2022-11-23 03:32:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 03:32:13,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:13,948 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2022-11-23 03:32:13,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:14,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:14,154 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:14,154 INFO L85 PathProgramCache]: Analyzing trace with hash -242254900, now seen corresponding path program 3 times [2022-11-23 03:32:14,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:14,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354060409] [2022-11-23 03:32:14,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:14,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:14,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:14,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354060409] [2022-11-23 03:32:14,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354060409] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:14,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742391338] [2022-11-23 03:32:14,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:32:14,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:14,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:14,393 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:14,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:32:14,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 03:32:14,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:14,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 03:32:14,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:14,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:14,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742391338] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:14,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:14,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-23 03:32:14,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22926899] [2022-11-23 03:32:14,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:14,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 03:32:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:14,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 03:32:14,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:32:14,923 INFO L87 Difference]: Start difference. First operand 2130 states and 2567 transitions. Second operand has 24 states, 23 states have (on average 5.739130434782608) internal successors, (132), 24 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:15,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:15,402 INFO L93 Difference]: Finished difference Result 5683 states and 7448 transitions. [2022-11-23 03:32:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 03:32:15,403 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.739130434782608) internal successors, (132), 24 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-23 03:32:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:15,422 INFO L225 Difference]: With dead ends: 5683 [2022-11-23 03:32:15,423 INFO L226 Difference]: Without dead ends: 5681 [2022-11-23 03:32:15,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:32:15,427 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 184 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:15,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 162 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2022-11-23 03:32:15,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 3160. [2022-11-23 03:32:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 3156 states have (on average 1.229404309252218) internal successors, (3880), 3159 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 3880 transitions. [2022-11-23 03:32:15,663 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 3880 transitions. Word has length 67 [2022-11-23 03:32:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:15,663 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 3880 transitions. [2022-11-23 03:32:15,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.739130434782608) internal successors, (132), 24 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 3880 transitions. [2022-11-23 03:32:15,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 03:32:15,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:15,667 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2022-11-23 03:32:15,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:15,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:15,872 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash -878722994, now seen corresponding path program 3 times [2022-11-23 03:32:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:15,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914699772] [2022-11-23 03:32:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:15,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:16,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:16,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914699772] [2022-11-23 03:32:16,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914699772] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:16,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709424824] [2022-11-23 03:32:16,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:32:16,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:16,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:16,091 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:16,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:32:16,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 03:32:16,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:16,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 03:32:16,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:16,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:16,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709424824] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:16,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:16,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-23 03:32:16,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440477359] [2022-11-23 03:32:16,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:16,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 03:32:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 03:32:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:32:16,555 INFO L87 Difference]: Start difference. First operand 3160 states and 3880 transitions. Second operand has 24 states, 23 states have (on average 5.913043478260869) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:17,205 INFO L93 Difference]: Finished difference Result 12416 states and 15747 transitions. [2022-11-23 03:32:17,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 03:32:17,206 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.913043478260869) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-23 03:32:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:17,241 INFO L225 Difference]: With dead ends: 12416 [2022-11-23 03:32:17,242 INFO L226 Difference]: Without dead ends: 12415 [2022-11-23 03:32:17,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:32:17,248 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 196 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:17,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 165 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:17,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12415 states. [2022-11-23 03:32:18,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12415 to 12407. [2022-11-23 03:32:18,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12407 states, 12403 states have (on average 1.15996129968556) internal successors, (14387), 12406 states have internal predecessors, (14387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12407 states to 12407 states and 14387 transitions. [2022-11-23 03:32:18,061 INFO L78 Accepts]: Start accepts. Automaton has 12407 states and 14387 transitions. Word has length 69 [2022-11-23 03:32:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:18,061 INFO L495 AbstractCegarLoop]: Abstraction has 12407 states and 14387 transitions. [2022-11-23 03:32:18,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.913043478260869) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 12407 states and 14387 transitions. [2022-11-23 03:32:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 03:32:18,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:18,068 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1] [2022-11-23 03:32:18,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:18,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 03:32:18,274 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:18,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:18,275 INFO L85 PathProgramCache]: Analyzing trace with hash 58482839, now seen corresponding path program 3 times [2022-11-23 03:32:18,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:18,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24889771] [2022-11-23 03:32:18,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:18,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,678 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:18,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:18,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24889771] [2022-11-23 03:32:18,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24889771] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:18,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913541024] [2022-11-23 03:32:18,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:32:18,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:18,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:18,680 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:18,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:32:18,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-23 03:32:18,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:18,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 03:32:18,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:18,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:19,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913541024] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:19,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:19,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-11-23 03:32:19,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652523378] [2022-11-23 03:32:19,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:19,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-23 03:32:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-23 03:32:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:32:19,412 INFO L87 Difference]: Start difference. First operand 12407 states and 14387 transitions. Second operand has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 32 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:20,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:20,869 INFO L93 Difference]: Finished difference Result 29253 states and 34996 transitions. [2022-11-23 03:32:20,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-23 03:32:20,870 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 32 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-23 03:32:20,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:20,922 INFO L225 Difference]: With dead ends: 29253 [2022-11-23 03:32:20,923 INFO L226 Difference]: Without dead ends: 29252 [2022-11-23 03:32:20,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:32:20,936 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 356 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:20,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 196 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:32:20,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29252 states. [2022-11-23 03:32:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29252 to 14278. [2022-11-23 03:32:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14278 states, 14274 states have (on average 1.1710802858343843) internal successors, (16716), 14277 states have internal predecessors, (16716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14278 states to 14278 states and 16716 transitions. [2022-11-23 03:32:22,056 INFO L78 Accepts]: Start accepts. Automaton has 14278 states and 16716 transitions. Word has length 90 [2022-11-23 03:32:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:22,056 INFO L495 AbstractCegarLoop]: Abstraction has 14278 states and 16716 transitions. [2022-11-23 03:32:22,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 32 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 14278 states and 16716 transitions. [2022-11-23 03:32:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-23 03:32:22,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:22,082 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 1, 1, 1, 1] [2022-11-23 03:32:22,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:22,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:22,287 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1400189408, now seen corresponding path program 4 times [2022-11-23 03:32:22,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:22,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289340940] [2022-11-23 03:32:22,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:22,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:23,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:23,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289340940] [2022-11-23 03:32:23,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289340940] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:23,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345434968] [2022-11-23 03:32:23,001 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:32:23,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:23,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:23,002 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:23,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:32:23,076 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:32:23,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:23,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 03:32:23,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:23,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:23,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:24,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345434968] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:24,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:24,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-23 03:32:24,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606695452] [2022-11-23 03:32:24,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:24,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-23 03:32:24,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:24,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-23 03:32:24,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:32:24,423 INFO L87 Difference]: Start difference. First operand 14278 states and 16716 transitions. Second operand has 48 states, 47 states have (on average 5.872340425531915) internal successors, (276), 48 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:26,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:26,379 INFO L93 Difference]: Finished difference Result 40493 states and 51103 transitions. [2022-11-23 03:32:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 03:32:26,380 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.872340425531915) internal successors, (276), 48 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-11-23 03:32:26,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:26,456 INFO L225 Difference]: With dead ends: 40493 [2022-11-23 03:32:26,456 INFO L226 Difference]: Without dead ends: 40491 [2022-11-23 03:32:26,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:32:26,471 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 430 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:26,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 335 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:32:26,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40491 states. [2022-11-23 03:32:27,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40491 to 18734. [2022-11-23 03:32:27,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18734 states, 18730 states have (on average 1.1907634810464496) internal successors, (22303), 18733 states have internal predecessors, (22303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18734 states to 18734 states and 22303 transitions. [2022-11-23 03:32:27,589 INFO L78 Accepts]: Start accepts. Automaton has 18734 states and 22303 transitions. Word has length 139 [2022-11-23 03:32:27,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:27,590 INFO L495 AbstractCegarLoop]: Abstraction has 18734 states and 22303 transitions. [2022-11-23 03:32:27,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.872340425531915) internal successors, (276), 48 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand 18734 states and 22303 transitions. [2022-11-23 03:32:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-23 03:32:27,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:27,612 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 1, 1, 1, 1] [2022-11-23 03:32:27,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:27,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 03:32:27,823 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1257255518, now seen corresponding path program 4 times [2022-11-23 03:32:27,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544555703] [2022-11-23 03:32:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:27,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:28,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:28,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544555703] [2022-11-23 03:32:28,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544555703] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:28,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348838420] [2022-11-23 03:32:28,530 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:32:28,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:28,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:28,531 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:28,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:32:28,674 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:32:28,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:28,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 03:32:28,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:28,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:29,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348838420] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:29,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:29,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-23 03:32:29,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387127701] [2022-11-23 03:32:29,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:29,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-23 03:32:29,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:29,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-23 03:32:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:32:29,854 INFO L87 Difference]: Start difference. First operand 18734 states and 22303 transitions. Second operand has 48 states, 47 states have (on average 5.957446808510638) internal successors, (280), 48 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:34,436 INFO L93 Difference]: Finished difference Result 95254 states and 119316 transitions. [2022-11-23 03:32:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 03:32:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.957446808510638) internal successors, (280), 48 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-11-23 03:32:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:34,583 INFO L225 Difference]: With dead ends: 95254 [2022-11-23 03:32:34,584 INFO L226 Difference]: Without dead ends: 95253 [2022-11-23 03:32:34,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:32:34,605 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 403 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:34,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 330 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:34,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95253 states. [2022-11-23 03:32:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95253 to 95237. [2022-11-23 03:32:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95237 states, 95233 states have (on average 1.1432276626799533) internal successors, (108873), 95236 states have internal predecessors, (108873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95237 states to 95237 states and 108873 transitions. [2022-11-23 03:32:40,876 INFO L78 Accepts]: Start accepts. Automaton has 95237 states and 108873 transitions. Word has length 141 [2022-11-23 03:32:40,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:40,877 INFO L495 AbstractCegarLoop]: Abstraction has 95237 states and 108873 transitions. [2022-11-23 03:32:40,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.957446808510638) internal successors, (280), 48 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 95237 states and 108873 transitions. [2022-11-23 03:32:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-23 03:32:40,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:40,934 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 1, 1, 1, 1] [2022-11-23 03:32:40,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:41,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 03:32:41,140 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 03:32:41,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:41,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1876985287, now seen corresponding path program 4 times [2022-11-23 03:32:41,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:41,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121179599] [2022-11-23 03:32:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:41,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:42,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:42,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121179599] [2022-11-23 03:32:42,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121179599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:42,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877674709] [2022-11-23 03:32:42,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:32:42,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:42,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:42,424 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:42,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b415aaf-1e8a-4b1e-81ea-8fe1f02f5cff/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 03:32:42,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:32:42,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:42,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-23 03:32:42,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:42,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:32:44,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877674709] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:44,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:44,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-11-23 03:32:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816701556] [2022-11-23 03:32:44,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:44,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-23 03:32:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:44,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-23 03:32:44,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-23 03:32:44,516 INFO L87 Difference]: Start difference. First operand 95237 states and 108873 transitions. Second operand has 64 states, 63 states have (on average 5.873015873015873) internal successors, (370), 64 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:32:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:55,885 INFO L93 Difference]: Finished difference Result 292123 states and 341172 transitions. [2022-11-23 03:32:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-23 03:32:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.873015873015873) internal successors, (370), 64 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2022-11-23 03:32:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:56,315 INFO L225 Difference]: With dead ends: 292123 [2022-11-23 03:32:56,315 INFO L226 Difference]: Without dead ends: 292122 [2022-11-23 03:32:56,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-23 03:32:56,413 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 718 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:56,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 390 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 03:32:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292122 states.