./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/twisted.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/twisted.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:21:21,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:21:21,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:21:21,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:21:21,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:21:21,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:21:21,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:21:21,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:21:21,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:21:21,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:21:21,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:21:21,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:21:21,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:21:21,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:21:21,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:21:21,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:21:21,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:21:21,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:21:21,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:21:21,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:21:21,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:21:21,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:21:21,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:21:21,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:21:21,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:21:21,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:21:21,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:21:21,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:21:21,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:21:21,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:21:21,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:21:21,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:21:21,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:21:21,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:21:21,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:21:21,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:21:21,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:21:21,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:21:21,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:21:21,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:21:21,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:21:21,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:21:21,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:21:21,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:21:21,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:21:21,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:21:21,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:21:21,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:21:21,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:21:21,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:21:21,543 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:21:21,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:21:21,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:21:21,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:21:21,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:21:21,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:21:21,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:21:21,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:21:21,546 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:21:21,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:21:21,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:21:21,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:21:21,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:21:21,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:21:21,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:21:21,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:21,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:21:21,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:21:21,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:21:21,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:21:21,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:21:21,549 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:21:21,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:21:21,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:21:21,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 [2022-11-18 20:21:21,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:21:21,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:21:21,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:21:21,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:21:21,985 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:21:21,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-numeric/twisted.c [2022-11-18 20:21:22,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/data/4abd0ad4f/1bc941111d544bd0bbad7b32b53250dd/FLAG6d2d761ef [2022-11-18 20:21:22,778 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:21:22,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/sv-benchmarks/c/termination-numeric/twisted.c [2022-11-18 20:21:22,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/data/4abd0ad4f/1bc941111d544bd0bbad7b32b53250dd/FLAG6d2d761ef [2022-11-18 20:21:23,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/data/4abd0ad4f/1bc941111d544bd0bbad7b32b53250dd [2022-11-18 20:21:23,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:21:23,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:21:23,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:23,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:21:23,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:21:23,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e4a4d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23, skipping insertion in model container [2022-11-18 20:21:23,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:21:23,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:21:23,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:23,417 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:21:23,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:23,452 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:21:23,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23 WrapperNode [2022-11-18 20:21:23,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:23,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:23,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:21:23,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:21:23,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,488 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2022-11-18 20:21:23,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:23,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:21:23,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:21:23,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:21:23,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:21:23,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:21:23,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:21:23,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:21:23,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (1/1) ... [2022-11-18 20:21:23,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:23,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:23,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:23,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:21:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:21:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:21:23,740 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:21:23,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:21:23,999 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:21:24,008 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:21:24,008 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:21:24,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:24 BoogieIcfgContainer [2022-11-18 20:21:24,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:21:24,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:21:24,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:21:24,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:21:24,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:21:23" (1/3) ... [2022-11-18 20:21:24,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e0fb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:21:24, skipping insertion in model container [2022-11-18 20:21:24,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:23" (2/3) ... [2022-11-18 20:21:24,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e0fb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:21:24, skipping insertion in model container [2022-11-18 20:21:24,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:24" (3/3) ... [2022-11-18 20:21:24,038 INFO L112 eAbstractionObserver]: Analyzing ICFG twisted.c [2022-11-18 20:21:24,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:21:24,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 20:21:24,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:21:24,181 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;@4136d6ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:21:24,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 20:21:24,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) 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) [2022-11-18 20:21:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:21:24,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:24,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:21:24,209 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)] === [2022-11-18 20:21:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:24,219 INFO L85 PathProgramCache]: Analyzing trace with hash 28694852, now seen corresponding path program 1 times [2022-11-18 20:21:24,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:24,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847021570] [2022-11-18 20:21:24,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:24,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:24,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:24,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847021570] [2022-11-18 20:21:24,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847021570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:24,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:24,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:24,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613528446] [2022-11-18 20:21:24,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:24,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:24,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:24,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:24,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:24,616 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:24,809 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2022-11-18 20:21:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:21:24,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:21:24,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:24,836 INFO L225 Difference]: With dead ends: 66 [2022-11-18 20:21:24,837 INFO L226 Difference]: Without dead ends: 36 [2022-11-18 20:21:24,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:24,846 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:24,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 45 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:24,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-18 20:21:24,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-11-18 20:21:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-11-18 20:21:24,910 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2022-11-18 20:21:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:24,912 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-11-18 20:21:24,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-11-18 20:21:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:21:24,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:24,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:21:24,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:21:24,915 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)] === [2022-11-18 20:21:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash 889540457, now seen corresponding path program 1 times [2022-11-18 20:21:24,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:24,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604246060] [2022-11-18 20:21:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:24,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:25,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:25,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604246060] [2022-11-18 20:21:25,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604246060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:25,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:25,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:25,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727160611] [2022-11-18 20:21:25,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:25,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:25,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:25,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:25,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:25,041 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:25,135 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2022-11-18 20:21:25,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:25,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:21:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:25,138 INFO L225 Difference]: With dead ends: 28 [2022-11-18 20:21:25,140 INFO L226 Difference]: Without dead ends: 27 [2022-11-18 20:21:25,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:25,143 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:25,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 20 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-18 20:21:25,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-18 20:21:25,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-11-18 20:21:25,161 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 6 [2022-11-18 20:21:25,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:25,163 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-11-18 20:21:25,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-11-18 20:21:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:21:25,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:25,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:25,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:21:25,177 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)] === [2022-11-18 20:21:25,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903811, now seen corresponding path program 1 times [2022-11-18 20:21:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:25,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52145599] [2022-11-18 20:21:25,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:25,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:25,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52145599] [2022-11-18 20:21:25,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52145599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:25,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:25,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:21:25,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413620331] [2022-11-18 20:21:25,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:25,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:25,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:25,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:25,283 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:25,344 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-11-18 20:21:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:25,345 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 [2022-11-18 20:21:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:25,346 INFO L225 Difference]: With dead ends: 40 [2022-11-18 20:21:25,346 INFO L226 Difference]: Without dead ends: 39 [2022-11-18 20:21:25,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:25,348 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:25,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:25,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-18 20:21:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-11-18 20:21:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2022-11-18 20:21:25,363 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 7 [2022-11-18 20:21:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:25,364 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2022-11-18 20:21:25,364 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) [2022-11-18 20:21:25,365 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-11-18 20:21:25,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:21:25,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:25,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:25,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:21:25,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:25,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:25,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903861, now seen corresponding path program 1 times [2022-11-18 20:21:25,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:25,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368479076] [2022-11-18 20:21:25,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:25,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:25,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:25,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368479076] [2022-11-18 20:21:25,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368479076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:25,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:25,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:25,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102262705] [2022-11-18 20:21:25,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:25,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:25,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:25,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:25,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:25,464 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:25,514 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2022-11-18 20:21:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:21:25,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:21:25,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:25,516 INFO L225 Difference]: With dead ends: 50 [2022-11-18 20:21:25,517 INFO L226 Difference]: Without dead ends: 49 [2022-11-18 20:21:25,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:25,519 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:25,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 41 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-18 20:21:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2022-11-18 20:21:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2022-11-18 20:21:25,531 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 7 [2022-11-18 20:21:25,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:25,532 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2022-11-18 20:21:25,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-11-18 20:21:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:21:25,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:25,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:25,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:21:25,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:25,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:25,535 INFO L85 PathProgramCache]: Analyzing trace with hash 148443370, now seen corresponding path program 1 times [2022-11-18 20:21:25,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329118414] [2022-11-18 20:21:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:25,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:25,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:25,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329118414] [2022-11-18 20:21:25,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329118414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:25,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:25,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:21:25,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473566922] [2022-11-18 20:21:25,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:25,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:25,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:25,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:25,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:25,594 INFO L87 Difference]: Start difference. First operand 41 states and 55 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) [2022-11-18 20:21:25,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:25,648 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-11-18 20:21:25,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:25,649 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 [2022-11-18 20:21:25,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:25,650 INFO L225 Difference]: With dead ends: 46 [2022-11-18 20:21:25,650 INFO L226 Difference]: Without dead ends: 43 [2022-11-18 20:21:25,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:25,652 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:25,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:25,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-18 20:21:25,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2022-11-18 20:21:25,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 39 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2022-11-18 20:21:25,665 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 8 [2022-11-18 20:21:25,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:25,665 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2022-11-18 20:21:25,666 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) [2022-11-18 20:21:25,666 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2022-11-18 20:21:25,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:21:25,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:25,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:25,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:21:25,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:25,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:25,668 INFO L85 PathProgramCache]: Analyzing trace with hash 148444908, now seen corresponding path program 1 times [2022-11-18 20:21:25,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:25,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978406614] [2022-11-18 20:21:25,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:25,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:25,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978406614] [2022-11-18 20:21:25,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978406614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:25,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:25,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542010193] [2022-11-18 20:21:25,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:25,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:25,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:25,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:25,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:25,745 INFO L87 Difference]: Start difference. First operand 40 states and 53 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:25,806 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2022-11-18 20:21:25,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:25,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:21:25,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:25,808 INFO L225 Difference]: With dead ends: 40 [2022-11-18 20:21:25,809 INFO L226 Difference]: Without dead ends: 39 [2022-11-18 20:21:25,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:25,810 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:25,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-18 20:21:25,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-18 20:21:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.457142857142857) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2022-11-18 20:21:25,821 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 8 [2022-11-18 20:21:25,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:25,821 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2022-11-18 20:21:25,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:25,822 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2022-11-18 20:21:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:21:25,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:25,823 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:25,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:21:25,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:25,824 INFO L85 PathProgramCache]: Analyzing trace with hash 351585609, now seen corresponding path program 1 times [2022-11-18 20:21:25,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:25,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444810767] [2022-11-18 20:21:25,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:25,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:25,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:25,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444810767] [2022-11-18 20:21:25,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444810767] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:25,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538992689] [2022-11-18 20:21:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:25,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:25,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:25,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:25,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:21:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:25,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:26,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:26,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:26,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538992689] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:26,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:26,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 20:21:26,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176097986] [2022-11-18 20:21:26,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:26,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:21:26,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:26,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:21:26,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:26,123 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:26,339 INFO L93 Difference]: Finished difference Result 113 states and 146 transitions. [2022-11-18 20:21:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:21:26,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:21:26,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:26,346 INFO L225 Difference]: With dead ends: 113 [2022-11-18 20:21:26,346 INFO L226 Difference]: Without dead ends: 112 [2022-11-18 20:21:26,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:21:26,355 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 112 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:26,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 50 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:26,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-18 20:21:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 74. [2022-11-18 20:21:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.457142857142857) internal successors, (102), 73 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2022-11-18 20:21:26,392 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 9 [2022-11-18 20:21:26,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:26,393 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2022-11-18 20:21:26,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2022-11-18 20:21:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:21:26,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:26,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:26,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:26,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 20:21:26,603 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:26,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1985673441, now seen corresponding path program 1 times [2022-11-18 20:21:26,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:26,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914699643] [2022-11-18 20:21:26,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:26,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:26,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:26,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914699643] [2022-11-18 20:21:26,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914699643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:26,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:26,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:26,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70594365] [2022-11-18 20:21:26,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:26,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:26,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:26,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:26,729 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:26,847 INFO L93 Difference]: Finished difference Result 80 states and 108 transitions. [2022-11-18 20:21:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:21:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 20:21:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:26,856 INFO L225 Difference]: With dead ends: 80 [2022-11-18 20:21:26,856 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 20:21:26,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:21:26,860 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:26,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 32 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 20:21:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2022-11-18 20:21:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 74 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2022-11-18 20:21:26,898 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 10 [2022-11-18 20:21:26,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:26,901 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2022-11-18 20:21:26,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:26,901 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2022-11-18 20:21:26,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:21:26,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:26,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:26,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:21:26,902 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:26,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:26,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993400, now seen corresponding path program 1 times [2022-11-18 20:21:26,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:26,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637945880] [2022-11-18 20:21:26,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:26,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:27,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:27,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637945880] [2022-11-18 20:21:27,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637945880] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:27,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755633961] [2022-11-18 20:21:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:27,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:27,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:27,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:27,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:21:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:27,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:27,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:27,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:27,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755633961] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:27,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:27,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-18 20:21:27,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875117619] [2022-11-18 20:21:27,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:27,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:21:27,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:27,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:21:27,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:21:27,314 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:27,626 INFO L93 Difference]: Finished difference Result 120 states and 160 transitions. [2022-11-18 20:21:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:21:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:21:27,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:27,628 INFO L225 Difference]: With dead ends: 120 [2022-11-18 20:21:27,628 INFO L226 Difference]: Without dead ends: 119 [2022-11-18 20:21:27,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:21:27,630 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:27,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 54 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:21:27,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-18 20:21:27,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 93. [2022-11-18 20:21:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.4719101123595506) internal successors, (131), 92 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 131 transitions. [2022-11-18 20:21:27,664 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 131 transitions. Word has length 11 [2022-11-18 20:21:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:27,665 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 131 transitions. [2022-11-18 20:21:27,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 131 transitions. [2022-11-18 20:21:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:21:27,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:27,666 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:27,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:27,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:27,867 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:27,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:27,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993350, now seen corresponding path program 1 times [2022-11-18 20:21:27,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:27,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138585988] [2022-11-18 20:21:27,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:27,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:27,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:27,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138585988] [2022-11-18 20:21:27,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138585988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:27,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698956074] [2022-11-18 20:21:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:27,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:27,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:27,941 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:27,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:21:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:27,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:27,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:28,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:28,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:28,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698956074] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:28,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:28,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 20:21:28,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949912262] [2022-11-18 20:21:28,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:28,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:21:28,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:28,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:21:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:28,105 INFO L87 Difference]: Start difference. First operand 93 states and 131 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:28,265 INFO L93 Difference]: Finished difference Result 254 states and 355 transitions. [2022-11-18 20:21:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:21:28,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:21:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:28,267 INFO L225 Difference]: With dead ends: 254 [2022-11-18 20:21:28,267 INFO L226 Difference]: Without dead ends: 253 [2022-11-18 20:21:28,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:21:28,271 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 98 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:28,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 87 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:28,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-18 20:21:28,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 227. [2022-11-18 20:21:28,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 223 states have (on average 1.4394618834080717) internal successors, (321), 226 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:28,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 321 transitions. [2022-11-18 20:21:28,331 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 321 transitions. Word has length 11 [2022-11-18 20:21:28,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:28,332 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 321 transitions. [2022-11-18 20:21:28,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:28,332 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 321 transitions. [2022-11-18 20:21:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:21:28,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:28,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:28,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:28,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:21:28,552 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:28,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:28,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1426334450, now seen corresponding path program 1 times [2022-11-18 20:21:28,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:28,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693111229] [2022-11-18 20:21:28,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:28,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:28,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:28,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693111229] [2022-11-18 20:21:28,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693111229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:28,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:28,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:28,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93324321] [2022-11-18 20:21:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:28,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:28,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:28,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:28,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:28,683 INFO L87 Difference]: Start difference. First operand 227 states and 321 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:28,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:28,807 INFO L93 Difference]: Finished difference Result 231 states and 325 transitions. [2022-11-18 20:21:28,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:21:28,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:21:28,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:28,810 INFO L225 Difference]: With dead ends: 231 [2022-11-18 20:21:28,810 INFO L226 Difference]: Without dead ends: 228 [2022-11-18 20:21:28,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:21:28,812 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:28,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:28,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-18 20:21:28,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-11-18 20:21:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.4330357142857142) internal successors, (321), 227 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:28,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 321 transitions. [2022-11-18 20:21:28,847 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 321 transitions. Word has length 11 [2022-11-18 20:21:28,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:28,848 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 321 transitions. [2022-11-18 20:21:28,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 321 transitions. [2022-11-18 20:21:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:21:28,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:28,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:28,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:21:28,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:28,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:28,851 INFO L85 PathProgramCache]: Analyzing trace with hash 930844933, now seen corresponding path program 1 times [2022-11-18 20:21:28,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:28,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375780132] [2022-11-18 20:21:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:28,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:28,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:28,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375780132] [2022-11-18 20:21:28,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375780132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:28,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123893147] [2022-11-18 20:21:28,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:28,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:28,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:28,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:28,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:21:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:29,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:29,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:29,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:29,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123893147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:29,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:29,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-11-18 20:21:29,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511918644] [2022-11-18 20:21:29,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:29,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:29,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:29,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:21:29,120 INFO L87 Difference]: Start difference. First operand 228 states and 321 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:29,222 INFO L93 Difference]: Finished difference Result 256 states and 354 transitions. [2022-11-18 20:21:29,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:21:29,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:21:29,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:29,225 INFO L225 Difference]: With dead ends: 256 [2022-11-18 20:21:29,225 INFO L226 Difference]: Without dead ends: 253 [2022-11-18 20:21:29,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:29,226 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:29,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 33 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:29,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-18 20:21:29,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 242. [2022-11-18 20:21:29,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.415966386554622) internal successors, (337), 241 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 337 transitions. [2022-11-18 20:21:29,254 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 337 transitions. Word has length 12 [2022-11-18 20:21:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:29,255 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 337 transitions. [2022-11-18 20:21:29,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:29,255 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 337 transitions. [2022-11-18 20:21:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:21:29,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:29,262 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:29,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:29,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:29,469 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:29,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:29,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1922968006, now seen corresponding path program 1 times [2022-11-18 20:21:29,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:29,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674585875] [2022-11-18 20:21:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:29,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:29,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:29,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674585875] [2022-11-18 20:21:29,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674585875] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:29,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444477756] [2022-11-18 20:21:29,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:29,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:29,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:29,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:29,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:21:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:29,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:21:29,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:29,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:29,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:29,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444477756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:29,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:29,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-11-18 20:21:29,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371176282] [2022-11-18 20:21:29,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:29,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:21:29,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:29,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:21:29,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:21:29,923 INFO L87 Difference]: Start difference. First operand 242 states and 337 transitions. Second operand has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:30,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:30,101 INFO L93 Difference]: Finished difference Result 253 states and 348 transitions. [2022-11-18 20:21:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:21:30,102 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:21:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:30,103 INFO L225 Difference]: With dead ends: 253 [2022-11-18 20:21:30,104 INFO L226 Difference]: Without dead ends: 250 [2022-11-18 20:21:30,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:21:30,107 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 54 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:30,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 55 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:30,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-18 20:21:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 242. [2022-11-18 20:21:30,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.4075630252100841) internal successors, (335), 241 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:30,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 335 transitions. [2022-11-18 20:21:30,133 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 335 transitions. Word has length 14 [2022-11-18 20:21:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:30,133 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 335 transitions. [2022-11-18 20:21:30,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:30,134 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 335 transitions. [2022-11-18 20:21:30,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:21:30,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:30,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:30,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:30,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:30,344 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:30,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:30,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1772254812, now seen corresponding path program 1 times [2022-11-18 20:21:30,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:30,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078912916] [2022-11-18 20:21:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:30,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:30,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:30,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078912916] [2022-11-18 20:21:30,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078912916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:30,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271655363] [2022-11-18 20:21:30,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:30,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:30,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:30,427 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:30,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:21:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:30,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:21:30,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:30,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:30,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:30,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271655363] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:30,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:30,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-11-18 20:21:30,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292479176] [2022-11-18 20:21:30,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:30,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:21:30,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:30,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:21:30,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:21:30,725 INFO L87 Difference]: Start difference. First operand 242 states and 335 transitions. Second operand has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,140 INFO L93 Difference]: Finished difference Result 313 states and 426 transitions. [2022-11-18 20:21:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:21:31,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:21:31,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,149 INFO L225 Difference]: With dead ends: 313 [2022-11-18 20:21:31,149 INFO L226 Difference]: Without dead ends: 311 [2022-11-18 20:21:31,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-11-18 20:21:31,151 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 147 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 46 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:21:31,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-11-18 20:21:31,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 265. [2022-11-18 20:21:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 261 states have (on average 1.4099616858237547) internal successors, (368), 264 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 368 transitions. [2022-11-18 20:21:31,183 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 368 transitions. Word has length 14 [2022-11-18 20:21:31,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,185 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 368 transitions. [2022-11-18 20:21:31,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,186 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 368 transitions. [2022-11-18 20:21:31,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:21:31,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:31,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:21:31,395 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 894675753, now seen corresponding path program 1 times [2022-11-18 20:21:31,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378310042] [2022-11-18 20:21:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:31,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378310042] [2022-11-18 20:21:31,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378310042] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:31,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59978829] [2022-11-18 20:21:31,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:31,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:31,510 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:31,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:21:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:21:31,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:31,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:31,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59978829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:31,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:31,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-11-18 20:21:31,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872467701] [2022-11-18 20:21:31,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:31,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:21:31,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:31,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:21:31,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:31,720 INFO L87 Difference]: Start difference. First operand 265 states and 368 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,947 INFO L93 Difference]: Finished difference Result 430 states and 602 transitions. [2022-11-18 20:21:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:21:31,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 20:21:31,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,951 INFO L225 Difference]: With dead ends: 430 [2022-11-18 20:21:31,951 INFO L226 Difference]: Without dead ends: 427 [2022-11-18 20:21:31,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:21:31,956 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 41 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:31,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-11-18 20:21:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 423. [2022-11-18 20:21:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 419 states have (on average 1.4128878281622912) internal successors, (592), 422 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 592 transitions. [2022-11-18 20:21:31,995 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 592 transitions. Word has length 15 [2022-11-18 20:21:31,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,995 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 592 transitions. [2022-11-18 20:21:31,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,996 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 592 transitions. [2022-11-18 20:21:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 20:21:31,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:32,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:32,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:21:32,208 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)] === [2022-11-18 20:21:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash -220195594, now seen corresponding path program 1 times [2022-11-18 20:21:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:32,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231998608] [2022-11-18 20:21:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:32,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231998608] [2022-11-18 20:21:32,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231998608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:32,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:32,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:32,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334606995] [2022-11-18 20:21:32,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:32,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:32,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:32,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:32,236 INFO L87 Difference]: Start difference. First operand 423 states and 592 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:32,294 INFO L93 Difference]: Finished difference Result 710 states and 993 transitions. [2022-11-18 20:21:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:32,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 [2022-11-18 20:21:32,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:32,297 INFO L225 Difference]: With dead ends: 710 [2022-11-18 20:21:32,297 INFO L226 Difference]: Without dead ends: 386 [2022-11-18 20:21:32,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:32,300 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:32,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 29 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-18 20:21:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 292. [2022-11-18 20:21:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 289 states have (on average 1.356401384083045) internal successors, (392), 291 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 392 transitions. [2022-11-18 20:21:32,333 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 392 transitions. Word has length 18 [2022-11-18 20:21:32,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:32,333 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 392 transitions. [2022-11-18 20:21:32,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 392 transitions. [2022-11-18 20:21:32,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:21:32,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:32,335 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:32,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:21:32,336 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:32,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:32,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1129109338, now seen corresponding path program 1 times [2022-11-18 20:21:32,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:32,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438243872] [2022-11-18 20:21:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:32,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438243872] [2022-11-18 20:21:32,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438243872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:32,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881001803] [2022-11-18 20:21:32,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:32,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:32,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:32,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:21:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:21:32,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:32,790 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881001803] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:32,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:32,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-11-18 20:21:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585868595] [2022-11-18 20:21:32,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:32,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 20:21:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 20:21:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2022-11-18 20:21:32,996 INFO L87 Difference]: Start difference. First operand 292 states and 392 transitions. Second operand has 29 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 29 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:33,824 INFO L93 Difference]: Finished difference Result 503 states and 661 transitions. [2022-11-18 20:21:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 20:21:33,825 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 29 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 22 [2022-11-18 20:21:33,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:33,827 INFO L225 Difference]: With dead ends: 503 [2022-11-18 20:21:33,828 INFO L226 Difference]: Without dead ends: 494 [2022-11-18 20:21:33,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=626, Invalid=2130, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 20:21:33,833 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 221 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:33,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 63 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:21:33,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-11-18 20:21:33,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 317. [2022-11-18 20:21:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 314 states have (on average 1.3821656050955413) internal successors, (434), 316 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 434 transitions. [2022-11-18 20:21:33,874 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 434 transitions. Word has length 22 [2022-11-18 20:21:33,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:33,874 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 434 transitions. [2022-11-18 20:21:33,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 29 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,875 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 434 transitions. [2022-11-18 20:21:33,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:21:33,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:33,876 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:33,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:34,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:21:34,084 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:34,085 INFO L85 PathProgramCache]: Analyzing trace with hash -198939945, now seen corresponding path program 2 times [2022-11-18 20:21:34,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:34,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262524321] [2022-11-18 20:21:34,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:34,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:34,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262524321] [2022-11-18 20:21:34,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262524321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:34,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409812148] [2022-11-18 20:21:34,241 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:21:34,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:34,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:34,243 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:34,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:21:34,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:21:34,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:34,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:21:34,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:34,755 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409812148] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:34,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:34,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-11-18 20:21:34,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288201571] [2022-11-18 20:21:34,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:34,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 20:21:34,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:34,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 20:21:34,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-11-18 20:21:34,760 INFO L87 Difference]: Start difference. First operand 317 states and 434 transitions. Second operand has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:35,438 INFO L93 Difference]: Finished difference Result 423 states and 558 transitions. [2022-11-18 20:21:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:21:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 20:21:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:35,441 INFO L225 Difference]: With dead ends: 423 [2022-11-18 20:21:35,442 INFO L226 Difference]: Without dead ends: 415 [2022-11-18 20:21:35,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=651, Invalid=1605, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:21:35,444 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 174 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:35,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 91 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:21:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-18 20:21:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 400. [2022-11-18 20:21:35,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 397 states have (on average 1.345088161209068) internal successors, (534), 399 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 534 transitions. [2022-11-18 20:21:35,505 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 534 transitions. Word has length 23 [2022-11-18 20:21:35,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:35,508 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 534 transitions. [2022-11-18 20:21:35,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,509 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 534 transitions. [2022-11-18 20:21:35,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:21:35,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:35,510 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:35,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:35,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 20:21:35,717 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:35,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:35,718 INFO L85 PathProgramCache]: Analyzing trace with hash -198939895, now seen corresponding path program 2 times [2022-11-18 20:21:35,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:35,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275352735] [2022-11-18 20:21:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:35,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:35,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:35,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275352735] [2022-11-18 20:21:35,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275352735] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:35,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534564756] [2022-11-18 20:21:35,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:21:35,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:35,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:35,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:35,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:21:35,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:21:35,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:35,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:21:35,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:21:36,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:36,087 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:21:36,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534564756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:36,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:36,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2022-11-18 20:21:36,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112736638] [2022-11-18 20:21:36,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:36,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:21:36,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:36,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:21:36,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:21:36,095 INFO L87 Difference]: Start difference. First operand 400 states and 534 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:36,419 INFO L93 Difference]: Finished difference Result 472 states and 624 transitions. [2022-11-18 20:21:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:21:36,420 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 20:21:36,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:36,422 INFO L225 Difference]: With dead ends: 472 [2022-11-18 20:21:36,423 INFO L226 Difference]: Without dead ends: 471 [2022-11-18 20:21:36,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:21:36,424 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 157 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:36,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 119 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-11-18 20:21:36,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 254. [2022-11-18 20:21:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 252 states have (on average 1.3015873015873016) internal successors, (328), 253 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 328 transitions. [2022-11-18 20:21:36,490 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 328 transitions. Word has length 23 [2022-11-18 20:21:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:36,491 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 328 transitions. [2022-11-18 20:21:36,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 328 transitions. [2022-11-18 20:21:36,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:21:36,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:36,496 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:36,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:36,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:36,703 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:36,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:36,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2131972659, now seen corresponding path program 2 times [2022-11-18 20:21:36,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:36,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115084949] [2022-11-18 20:21:36,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:36,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:36,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:36,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115084949] [2022-11-18 20:21:36,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115084949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:36,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762163816] [2022-11-18 20:21:36,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:21:36,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:36,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:36,944 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:36,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:21:36,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:21:36,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:36,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:21:36,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 20:21:37,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:37,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762163816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:37,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:37,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2022-11-18 20:21:37,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643711252] [2022-11-18 20:21:37,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:37,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:37,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:37,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:37,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:21:37,060 INFO L87 Difference]: Start difference. First operand 254 states and 328 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:37,190 INFO L93 Difference]: Finished difference Result 408 states and 519 transitions. [2022-11-18 20:21:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:21:37,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:21:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:37,192 INFO L225 Difference]: With dead ends: 408 [2022-11-18 20:21:37,192 INFO L226 Difference]: Without dead ends: 228 [2022-11-18 20:21:37,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:21:37,194 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:37,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 48 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:37,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-18 20:21:37,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2022-11-18 20:21:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 222 states have (on average 1.2252252252252251) internal successors, (272), 223 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:37,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2022-11-18 20:21:37,280 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 26 [2022-11-18 20:21:37,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:37,280 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2022-11-18 20:21:37,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:37,280 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2022-11-18 20:21:37,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:21:37,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:37,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:37,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:37,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:37,488 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:37,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:37,488 INFO L85 PathProgramCache]: Analyzing trace with hash 173293468, now seen corresponding path program 1 times [2022-11-18 20:21:37,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:37,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038597710] [2022-11-18 20:21:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:37,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:37,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:37,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038597710] [2022-11-18 20:21:37,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038597710] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:37,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922716719] [2022-11-18 20:21:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:37,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:37,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:37,777 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:37,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:21:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:37,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:21:37,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:38,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:38,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922716719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:38,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:38,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-11-18 20:21:38,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138859105] [2022-11-18 20:21:38,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:38,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 20:21:38,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:38,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 20:21:38,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:21:38,453 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:39,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:39,250 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2022-11-18 20:21:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-18 20:21:39,251 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 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 27 [2022-11-18 20:21:39,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:39,253 INFO L225 Difference]: With dead ends: 325 [2022-11-18 20:21:39,253 INFO L226 Difference]: Without dead ends: 319 [2022-11-18 20:21:39,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=799, Invalid=2281, Unknown=0, NotChecked=0, Total=3080 [2022-11-18 20:21:39,256 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 261 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:39,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 82 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:21:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-18 20:21:39,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 270. [2022-11-18 20:21:39,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 268 states have (on average 1.205223880597015) internal successors, (323), 269 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:39,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 323 transitions. [2022-11-18 20:21:39,358 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 323 transitions. Word has length 27 [2022-11-18 20:21:39,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:39,358 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 323 transitions. [2022-11-18 20:21:39,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 323 transitions. [2022-11-18 20:21:39,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:21:39,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:39,360 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:39,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:39,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:39,572 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:39,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:39,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1060574047, now seen corresponding path program 1 times [2022-11-18 20:21:39,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:39,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841040463] [2022-11-18 20:21:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:39,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:39,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:39,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841040463] [2022-11-18 20:21:39,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841040463] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:39,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666883232] [2022-11-18 20:21:39,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:39,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:39,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:39,729 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:39,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:21:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:39,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:21:39,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:39,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:40,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666883232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:40,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:40,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-18 20:21:40,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233491732] [2022-11-18 20:21:40,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:40,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:21:40,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:40,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:21:40,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:21:40,054 INFO L87 Difference]: Start difference. First operand 270 states and 323 transitions. Second operand has 22 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:40,556 INFO L93 Difference]: Finished difference Result 564 states and 711 transitions. [2022-11-18 20:21:40,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 20:21:40,557 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-18 20:21:40,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:40,559 INFO L225 Difference]: With dead ends: 564 [2022-11-18 20:21:40,560 INFO L226 Difference]: Without dead ends: 563 [2022-11-18 20:21:40,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:21:40,561 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 241 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:40,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 95 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:21:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-18 20:21:40,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 337. [2022-11-18 20:21:40,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 335 states have (on average 1.2447761194029852) internal successors, (417), 336 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:40,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 417 transitions. [2022-11-18 20:21:40,646 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 417 transitions. Word has length 27 [2022-11-18 20:21:40,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:40,646 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 417 transitions. [2022-11-18 20:21:40,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 417 transitions. [2022-11-18 20:21:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:21:40,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:40,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:40,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:40,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-18 20:21:40,855 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:40,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash -617200904, now seen corresponding path program 1 times [2022-11-18 20:21:40,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:40,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719583893] [2022-11-18 20:21:40,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:40,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:41,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719583893] [2022-11-18 20:21:41,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719583893] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026330277] [2022-11-18 20:21:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:41,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:41,147 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:41,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:21:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:41,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 20:21:41,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:41,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:41,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026330277] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:41,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:41,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-11-18 20:21:41,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120997724] [2022-11-18 20:21:41,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:41,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-18 20:21:41,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:41,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-18 20:21:41,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=1306, Unknown=0, NotChecked=0, Total=1640 [2022-11-18 20:21:41,940 INFO L87 Difference]: Start difference. First operand 337 states and 417 transitions. Second operand has 41 states, 40 states have (on average 2.35) internal successors, (94), 41 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:43,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:43,566 INFO L93 Difference]: Finished difference Result 660 states and 822 transitions. [2022-11-18 20:21:43,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-18 20:21:43,567 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.35) internal successors, (94), 41 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-18 20:21:43,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:43,570 INFO L225 Difference]: With dead ends: 660 [2022-11-18 20:21:43,570 INFO L226 Difference]: Without dead ends: 649 [2022-11-18 20:21:43,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2110 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1394, Invalid=5086, Unknown=0, NotChecked=0, Total=6480 [2022-11-18 20:21:43,574 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 349 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:43,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 92 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:21:43,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-11-18 20:21:43,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 429. [2022-11-18 20:21:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 427 states have (on average 1.2505854800936769) internal successors, (534), 428 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:43,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 534 transitions. [2022-11-18 20:21:43,709 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 534 transitions. Word has length 32 [2022-11-18 20:21:43,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:43,709 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 534 transitions. [2022-11-18 20:21:43,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.35) internal successors, (94), 41 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:43,710 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 534 transitions. [2022-11-18 20:21:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 20:21:43,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:43,711 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:21:43,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:43,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-18 20:21:43,918 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:43,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:43,919 INFO L85 PathProgramCache]: Analyzing trace with hash 819223618, now seen corresponding path program 2 times [2022-11-18 20:21:43,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:43,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122146280] [2022-11-18 20:21:43,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:43,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:44,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:44,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122146280] [2022-11-18 20:21:44,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122146280] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:44,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456077260] [2022-11-18 20:21:44,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:21:44,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:44,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:44,289 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:44,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:21:44,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:21:44,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:44,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 20:21:44,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:44,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:45,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456077260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:45,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:45,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 52 [2022-11-18 20:21:45,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317832833] [2022-11-18 20:21:45,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:45,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 20:21:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:45,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 20:21:45,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=2210, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 20:21:45,422 INFO L87 Difference]: Start difference. First operand 429 states and 534 transitions. Second operand has 53 states, 52 states have (on average 2.3846153846153846) internal successors, (124), 53 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:47,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:47,542 INFO L93 Difference]: Finished difference Result 993 states and 1260 transitions. [2022-11-18 20:21:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-18 20:21:47,543 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 2.3846153846153846) internal successors, (124), 53 states have internal predecessors, (124), 0 states have call successors, (0), 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 [2022-11-18 20:21:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:47,548 INFO L225 Difference]: With dead ends: 993 [2022-11-18 20:21:47,549 INFO L226 Difference]: Without dead ends: 981 [2022-11-18 20:21:47,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3643 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2275, Invalid=8437, Unknown=0, NotChecked=0, Total=10712 [2022-11-18 20:21:47,555 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 650 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:47,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 92 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:21:47,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-11-18 20:21:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 561. [2022-11-18 20:21:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 559 states have (on average 1.2826475849731664) internal successors, (717), 560 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:47,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 717 transitions. [2022-11-18 20:21:47,698 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 717 transitions. Word has length 42 [2022-11-18 20:21:47,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:47,699 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 717 transitions. [2022-11-18 20:21:47,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 2.3846153846153846) internal successors, (124), 53 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 717 transitions. [2022-11-18 20:21:47,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 20:21:47,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:47,701 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:47,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:47,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 20:21:47,908 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:47,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:47,909 INFO L85 PathProgramCache]: Analyzing trace with hash 155546162, now seen corresponding path program 1 times [2022-11-18 20:21:47,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:47,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441508524] [2022-11-18 20:21:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:47,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:48,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:48,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441508524] [2022-11-18 20:21:48,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441508524] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:48,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108806316] [2022-11-18 20:21:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:48,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:48,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:48,360 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:48,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 20:21:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:48,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:21:48,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:49,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:49,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108806316] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:49,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:49,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-11-18 20:21:49,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596770752] [2022-11-18 20:21:49,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:49,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-18 20:21:49,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:49,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-18 20:21:49,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2022-11-18 20:21:49,750 INFO L87 Difference]: Start difference. First operand 561 states and 717 transitions. Second operand has 59 states, 58 states have (on average 2.293103448275862) internal successors, (133), 59 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:52,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:52,452 INFO L93 Difference]: Finished difference Result 1452 states and 1822 transitions. [2022-11-18 20:21:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-11-18 20:21:52,453 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.293103448275862) internal successors, (133), 59 states have internal predecessors, (133), 0 states have call successors, (0), 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 45 [2022-11-18 20:21:52,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:52,459 INFO L225 Difference]: With dead ends: 1452 [2022-11-18 20:21:52,459 INFO L226 Difference]: Without dead ends: 1439 [2022-11-18 20:21:52,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4684 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2978, Invalid=10828, Unknown=0, NotChecked=0, Total=13806 [2022-11-18 20:21:52,464 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 685 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:52,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 107 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:21:52,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2022-11-18 20:21:52,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1002. [2022-11-18 20:21:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 1000 states have (on average 1.284) internal successors, (1284), 1001 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1284 transitions. [2022-11-18 20:21:52,799 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1284 transitions. Word has length 45 [2022-11-18 20:21:52,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:52,800 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1284 transitions. [2022-11-18 20:21:52,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.293103448275862) internal successors, (133), 59 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:52,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1284 transitions. [2022-11-18 20:21:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 20:21:52,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:52,804 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-18 20:21:52,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:53,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 20:21:53,017 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:53,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash 40208802, now seen corresponding path program 3 times [2022-11-18 20:21:53,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:53,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140574438] [2022-11-18 20:21:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:53,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:53,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:53,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140574438] [2022-11-18 20:21:53,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140574438] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:53,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581773595] [2022-11-18 20:21:53,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:21:53,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:53,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:53,557 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:53,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 20:21:53,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 20:21:53,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:53,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:21:53,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-18 20:21:53,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:53,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581773595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:53,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:53,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [22] total 24 [2022-11-18 20:21:53,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984072294] [2022-11-18 20:21:53,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:53,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:53,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:53,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:21:53,668 INFO L87 Difference]: Start difference. First operand 1002 states and 1284 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:53,946 INFO L93 Difference]: Finished difference Result 1290 states and 1648 transitions. [2022-11-18 20:21:53,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:53,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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 50 [2022-11-18 20:21:53,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:53,949 INFO L225 Difference]: With dead ends: 1290 [2022-11-18 20:21:53,950 INFO L226 Difference]: Without dead ends: 637 [2022-11-18 20:21:53,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:21:53,952 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:53,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 25 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:53,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-11-18 20:21:54,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 533. [2022-11-18 20:21:54,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 531 states have (on average 1.2090395480225988) internal successors, (642), 532 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 642 transitions. [2022-11-18 20:21:54,153 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 642 transitions. Word has length 50 [2022-11-18 20:21:54,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:54,153 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 642 transitions. [2022-11-18 20:21:54,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:54,153 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 642 transitions. [2022-11-18 20:21:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-18 20:21:54,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:54,155 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:54,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:54,372 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:54,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1442158919, now seen corresponding path program 2 times [2022-11-18 20:21:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:54,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823920896] [2022-11-18 20:21:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:54,928 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:54,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:54,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823920896] [2022-11-18 20:21:54,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823920896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:54,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362167336] [2022-11-18 20:21:54,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:21:54,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:54,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:54,931 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:54,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 20:21:54,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:21:54,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:54,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 20:21:54,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:55,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:56,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362167336] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:56,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:56,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 64 [2022-11-18 20:21:56,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282572027] [2022-11-18 20:21:56,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:56,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-18 20:21:56,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:56,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-18 20:21:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=822, Invalid=3338, Unknown=0, NotChecked=0, Total=4160 [2022-11-18 20:21:56,409 INFO L87 Difference]: Start difference. First operand 533 states and 642 transitions. Second operand has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:59,539 INFO L93 Difference]: Finished difference Result 1505 states and 1828 transitions. [2022-11-18 20:21:59,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-11-18 20:21:59,540 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 0 states have call successors, (0), 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 51 [2022-11-18 20:21:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:59,546 INFO L225 Difference]: With dead ends: 1505 [2022-11-18 20:21:59,546 INFO L226 Difference]: Without dead ends: 1489 [2022-11-18 20:21:59,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5788 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3331, Invalid=12925, Unknown=0, NotChecked=0, Total=16256 [2022-11-18 20:21:59,550 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 634 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:59,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 100 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:21:59,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-11-18 20:21:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 724. [2022-11-18 20:21:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 722 states have (on average 1.2437673130193905) internal successors, (898), 723 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 898 transitions. [2022-11-18 20:21:59,742 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 898 transitions. Word has length 51 [2022-11-18 20:21:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:59,742 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 898 transitions. [2022-11-18 20:21:59,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 898 transitions. [2022-11-18 20:21:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-18 20:21:59,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:59,745 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:59,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:59,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 20:21:59,952 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:21:59,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:59,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2011601919, now seen corresponding path program 3 times [2022-11-18 20:21:59,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:59,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413054449] [2022-11-18 20:21:59,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:59,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:00,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:00,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413054449] [2022-11-18 20:22:00,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413054449] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:00,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880847417] [2022-11-18 20:22:00,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:22:00,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:00,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:00,669 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:00,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 20:22:00,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:22:00,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:22:00,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 20:22:00,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:01,121 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 20 proven. 58 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-18 20:22:01,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:01,957 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-18 20:22:01,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880847417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:01,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:01,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 13, 13] total 50 [2022-11-18 20:22:01,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809863793] [2022-11-18 20:22:01,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:01,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-18 20:22:01,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:01,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-18 20:22:01,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2161, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 20:22:01,959 INFO L87 Difference]: Start difference. First operand 724 states and 898 transitions. Second operand has 50 states, 50 states have (on average 2.54) internal successors, (127), 50 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:08,441 INFO L93 Difference]: Finished difference Result 1693 states and 2036 transitions. [2022-11-18 20:22:08,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-11-18 20:22:08,442 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.54) internal successors, (127), 50 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-18 20:22:08,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:08,446 INFO L225 Difference]: With dead ends: 1693 [2022-11-18 20:22:08,446 INFO L226 Difference]: Without dead ends: 1037 [2022-11-18 20:22:08,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8000 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2759, Invalid=24301, Unknown=0, NotChecked=0, Total=27060 [2022-11-18 20:22:08,452 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1064 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:08,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 369 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 20:22:08,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-11-18 20:22:08,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 592. [2022-11-18 20:22:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 590 states have (on average 1.2169491525423728) internal successors, (718), 591 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 718 transitions. [2022-11-18 20:22:08,644 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 718 transitions. Word has length 57 [2022-11-18 20:22:08,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:08,644 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 718 transitions. [2022-11-18 20:22:08,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.54) internal successors, (127), 50 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:08,645 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 718 transitions. [2022-11-18 20:22:08,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 20:22:08,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:08,646 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:22:08,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:08,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 20:22:08,847 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:22:08,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash 2012170120, now seen corresponding path program 4 times [2022-11-18 20:22:08,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:08,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929512272] [2022-11-18 20:22:08,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:08,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:09,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:09,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929512272] [2022-11-18 20:22:09,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929512272] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:09,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454248040] [2022-11-18 20:22:09,564 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:22:09,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:09,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,566 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 20:22:09,626 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:22:09,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:22:09,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-18 20:22:09,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:10,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:11,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454248040] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:11,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:11,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 82 [2022-11-18 20:22:11,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391406095] [2022-11-18 20:22:11,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:11,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-11-18 20:22:11,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:11,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-11-18 20:22:11,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1276, Invalid=5530, Unknown=0, NotChecked=0, Total=6806 [2022-11-18 20:22:11,513 INFO L87 Difference]: Start difference. First operand 592 states and 718 transitions. Second operand has 83 states, 82 states have (on average 2.2804878048780486) internal successors, (187), 83 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:14,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:14,833 INFO L93 Difference]: Finished difference Result 1429 states and 1676 transitions. [2022-11-18 20:22:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-18 20:22:14,834 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 2.2804878048780486) internal successors, (187), 83 states have internal predecessors, (187), 0 states have call successors, (0), 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 63 [2022-11-18 20:22:14,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:14,837 INFO L225 Difference]: With dead ends: 1429 [2022-11-18 20:22:14,838 INFO L226 Difference]: Without dead ends: 1417 [2022-11-18 20:22:14,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7788 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4696, Invalid=16766, Unknown=0, NotChecked=0, Total=21462 [2022-11-18 20:22:14,842 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 785 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:14,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 137 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:22:14,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2022-11-18 20:22:15,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 880. [2022-11-18 20:22:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.2232346241457859) internal successors, (1074), 879 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1074 transitions. [2022-11-18 20:22:15,113 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1074 transitions. Word has length 63 [2022-11-18 20:22:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:15,113 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1074 transitions. [2022-11-18 20:22:15,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 2.2804878048780486) internal successors, (187), 83 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1074 transitions. [2022-11-18 20:22:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-18 20:22:15,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:15,116 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 6, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-18 20:22:15,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:15,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 20:22:15,323 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:22:15,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:15,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1937639662, now seen corresponding path program 2 times [2022-11-18 20:22:15,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:15,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626882641] [2022-11-18 20:22:15,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:15,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:15,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:15,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626882641] [2022-11-18 20:22:15,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626882641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:15,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152141866] [2022-11-18 20:22:15,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:22:15,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:15,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:15,916 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:15,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 20:22:15,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:22:15,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:22:15,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:22:15,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-18 20:22:16,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-18 20:22:16,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152141866] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:16,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:16,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 3, 3] total 25 [2022-11-18 20:22:16,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956956765] [2022-11-18 20:22:16,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:16,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 20:22:16,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:16,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 20:22:16,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-11-18 20:22:16,278 INFO L87 Difference]: Start difference. First operand 880 states and 1074 transitions. Second operand has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:17,883 INFO L93 Difference]: Finished difference Result 1693 states and 1985 transitions. [2022-11-18 20:22:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:22:17,883 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-18 20:22:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:17,890 INFO L225 Difference]: With dead ends: 1693 [2022-11-18 20:22:17,891 INFO L226 Difference]: Without dead ends: 1692 [2022-11-18 20:22:17,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=636, Invalid=1716, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 20:22:17,896 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 189 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:17,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 143 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:22:17,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-11-18 20:22:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 712. [2022-11-18 20:22:18,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 1.20112517580872) internal successors, (854), 711 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 854 transitions. [2022-11-18 20:22:18,192 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 854 transitions. Word has length 69 [2022-11-18 20:22:18,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:18,192 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 854 transitions. [2022-11-18 20:22:18,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:18,193 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 854 transitions. [2022-11-18 20:22:18,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-18 20:22:18,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:18,195 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-18 20:22:18,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:18,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:18,401 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:22:18,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:18,401 INFO L85 PathProgramCache]: Analyzing trace with hash 448781649, now seen corresponding path program 1 times [2022-11-18 20:22:18,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:18,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753547575] [2022-11-18 20:22:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:18,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:19,269 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:19,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:19,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753547575] [2022-11-18 20:22:19,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753547575] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:19,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663166829] [2022-11-18 20:22:19,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:19,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:19,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:19,272 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:19,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 20:22:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:19,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-18 20:22:19,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:20,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:21,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663166829] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:21,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:21,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-11-18 20:22:21,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551821757] [2022-11-18 20:22:21,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:21,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-18 20:22:21,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:21,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-18 20:22:21,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1728, Invalid=7202, Unknown=0, NotChecked=0, Total=8930 [2022-11-18 20:22:21,832 INFO L87 Difference]: Start difference. First operand 712 states and 854 transitions. Second operand has 95 states, 94 states have (on average 2.3404255319148937) internal successors, (220), 95 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:26,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:26,573 INFO L93 Difference]: Finished difference Result 1908 states and 2281 transitions. [2022-11-18 20:22:26,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-11-18 20:22:26,574 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.3404255319148937) internal successors, (220), 95 states have internal predecessors, (220), 0 states have call successors, (0), 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 74 [2022-11-18 20:22:26,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:26,578 INFO L225 Difference]: With dead ends: 1908 [2022-11-18 20:22:26,578 INFO L226 Difference]: Without dead ends: 1879 [2022-11-18 20:22:26,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11834 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=6339, Invalid=25523, Unknown=0, NotChecked=0, Total=31862 [2022-11-18 20:22:26,581 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 904 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:26,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 149 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:22:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2022-11-18 20:22:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 757. [2022-11-18 20:22:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 756 states have (on average 1.2103174603174602) internal successors, (915), 756 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:26,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 915 transitions. [2022-11-18 20:22:26,900 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 915 transitions. Word has length 74 [2022-11-18 20:22:26,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:26,900 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 915 transitions. [2022-11-18 20:22:26,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.3404255319148937) internal successors, (220), 95 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:26,901 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 915 transitions. [2022-11-18 20:22:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-18 20:22:26,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:26,903 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 6, 6, 6, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1] [2022-11-18 20:22:26,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:27,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-18 20:22:27,110 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:22:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:27,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1955030167, now seen corresponding path program 5 times [2022-11-18 20:22:27,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:27,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514426284] [2022-11-18 20:22:27,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:27,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:28,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:28,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514426284] [2022-11-18 20:22:28,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514426284] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:28,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842522482] [2022-11-18 20:22:28,227 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:22:28,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:28,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:28,229 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:28,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 20:22:28,302 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-18 20:22:28,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:22:28,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:22:28,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 181 proven. 5 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-11-18 20:22:28,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 181 proven. 5 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-11-18 20:22:28,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842522482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:28,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:28,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 6, 6] total 41 [2022-11-18 20:22:28,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107890561] [2022-11-18 20:22:28,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:28,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-18 20:22:28,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:28,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-18 20:22:28,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1338, Unknown=0, NotChecked=0, Total=1640 [2022-11-18 20:22:28,571 INFO L87 Difference]: Start difference. First operand 757 states and 915 transitions. Second operand has 41 states, 41 states have (on average 2.975609756097561) internal successors, (122), 41 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:31,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:31,438 INFO L93 Difference]: Finished difference Result 1043 states and 1229 transitions. [2022-11-18 20:22:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-18 20:22:31,438 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.975609756097561) internal successors, (122), 41 states have internal predecessors, (122), 0 states have call successors, (0), 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 82 [2022-11-18 20:22:31,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:31,440 INFO L225 Difference]: With dead ends: 1043 [2022-11-18 20:22:31,440 INFO L226 Difference]: Without dead ends: 463 [2022-11-18 20:22:31,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2787 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1976, Invalid=9154, Unknown=0, NotChecked=0, Total=11130 [2022-11-18 20:22:31,443 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 441 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:31,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 122 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:22:31,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-11-18 20:22:31,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 322. [2022-11-18 20:22:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.0591900311526479) internal successors, (340), 321 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 340 transitions. [2022-11-18 20:22:31,637 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 340 transitions. Word has length 82 [2022-11-18 20:22:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:31,638 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 340 transitions. [2022-11-18 20:22:31,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.975609756097561) internal successors, (122), 41 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 340 transitions. [2022-11-18 20:22:31,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 20:22:31,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:31,640 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:31,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:31,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-18 20:22:31,846 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:22:31,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:31,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1088474210, now seen corresponding path program 2 times [2022-11-18 20:22:31,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:31,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643003280] [2022-11-18 20:22:31,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:31,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:33,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:33,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643003280] [2022-11-18 20:22:33,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643003280] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:33,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289739854] [2022-11-18 20:22:33,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:22:33,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:33,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:33,097 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:33,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 20:22:33,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:22:33,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:22:33,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-18 20:22:33,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:34,699 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:34,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:36,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289739854] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:36,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:36,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-11-18 20:22:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289786013] [2022-11-18 20:22:36,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:36,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-18 20:22:36,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:36,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-18 20:22:36,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3096, Invalid=10946, Unknown=0, NotChecked=0, Total=14042 [2022-11-18 20:22:36,704 INFO L87 Difference]: Start difference. First operand 322 states and 340 transitions. Second operand has 119 states, 118 states have (on average 2.093220338983051) internal successors, (247), 119 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:41,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:41,005 INFO L93 Difference]: Finished difference Result 850 states and 906 transitions. [2022-11-18 20:22:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-18 20:22:41,005 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.093220338983051) internal successors, (247), 119 states have internal predecessors, (247), 0 states have call successors, (0), 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 83 [2022-11-18 20:22:41,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:41,008 INFO L225 Difference]: With dead ends: 850 [2022-11-18 20:22:41,008 INFO L226 Difference]: Without dead ends: 828 [2022-11-18 20:22:41,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14213 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=9752, Invalid=28468, Unknown=0, NotChecked=0, Total=38220 [2022-11-18 20:22:41,010 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 988 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:41,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 174 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:22:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-11-18 20:22:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 538. [2022-11-18 20:22:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.0353817504655494) internal successors, (556), 537 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:41,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 556 transitions. [2022-11-18 20:22:41,383 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 556 transitions. Word has length 83 [2022-11-18 20:22:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:41,384 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 556 transitions. [2022-11-18 20:22:41,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.093220338983051) internal successors, (247), 119 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 556 transitions. [2022-11-18 20:22:41,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-18 20:22:41,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:41,386 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1] [2022-11-18 20:22:41,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-11-18 20:22:41,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:41,593 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:22:41,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash -319776093, now seen corresponding path program 6 times [2022-11-18 20:22:41,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:41,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660171849] [2022-11-18 20:22:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:41,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:42,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:42,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660171849] [2022-11-18 20:22:42,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660171849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:42,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587234815] [2022-11-18 20:22:42,744 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:22:42,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:42,745 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:42,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-18 20:22:42,820 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-11-18 20:22:42,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:22:42,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-18 20:22:42,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:44,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:45,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587234815] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:45,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:45,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 112 [2022-11-18 20:22:45,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984926291] [2022-11-18 20:22:45,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:45,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-11-18 20:22:45,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:45,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-11-18 20:22:45,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=10346, Unknown=0, NotChecked=0, Total=12656 [2022-11-18 20:22:45,995 INFO L87 Difference]: Start difference. First operand 538 states and 556 transitions. Second operand has 113 states, 112 states have (on average 2.2589285714285716) internal successors, (253), 113 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) [2022-11-18 20:22:50,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:50,937 INFO L93 Difference]: Finished difference Result 1218 states and 1259 transitions. [2022-11-18 20:22:50,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-11-18 20:22:50,938 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 2.2589285714285716) internal successors, (253), 113 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) Word has length 85 [2022-11-18 20:22:50,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:50,940 INFO L225 Difference]: With dead ends: 1218 [2022-11-18 20:22:50,940 INFO L226 Difference]: Without dead ends: 1204 [2022-11-18 20:22:50,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14383 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=8431, Invalid=29789, Unknown=0, NotChecked=0, Total=38220 [2022-11-18 20:22:50,943 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 994 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:50,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 144 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:22:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-11-18 20:22:51,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 538. [2022-11-18 20:22:51,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.0353817504655494) internal successors, (556), 537 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:22:51,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 556 transitions. [2022-11-18 20:22:51,565 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 556 transitions. Word has length 85 [2022-11-18 20:22:51,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:51,565 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 556 transitions. [2022-11-18 20:22:51,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 2.2589285714285716) internal successors, (253), 113 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) [2022-11-18 20:22:51,565 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 556 transitions. [2022-11-18 20:22:51,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-18 20:22:51,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:51,568 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2022-11-18 20:22:51,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:51,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:51,775 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:22:51,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1145678342, now seen corresponding path program 1 times [2022-11-18 20:22:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:51,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765658427] [2022-11-18 20:22:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:53,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:53,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765658427] [2022-11-18 20:22:53,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765658427] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:53,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528085591] [2022-11-18 20:22:53,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:53,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:53,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:53,257 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:53,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-18 20:22:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-18 20:22:53,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:55,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:57,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528085591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:57,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:57,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 130 [2022-11-18 20:22:57,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109463535] [2022-11-18 20:22:57,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:57,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-11-18 20:22:57,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:57,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-11-18 20:22:57,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3132, Invalid=13898, Unknown=0, NotChecked=0, Total=17030 [2022-11-18 20:22:57,301 INFO L87 Difference]: Start difference. First operand 538 states and 556 transitions. Second operand has 131 states, 130 states have (on average 2.4076923076923076) internal successors, (313), 131 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:04,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:04,458 INFO L93 Difference]: Finished difference Result 1165 states and 1226 transitions. [2022-11-18 20:23:04,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-11-18 20:23:04,459 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 130 states have (on average 2.4076923076923076) internal successors, (313), 131 states have internal predecessors, (313), 0 states have call successors, (0), 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 105 [2022-11-18 20:23:04,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:04,463 INFO L225 Difference]: With dead ends: 1165 [2022-11-18 20:23:04,464 INFO L226 Difference]: Without dead ends: 1142 [2022-11-18 20:23:04,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22521 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=11677, Invalid=46645, Unknown=0, NotChecked=0, Total=58322 [2022-11-18 20:23:04,470 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1176 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:04,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 165 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 20:23:04,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-11-18 20:23:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 648. [2022-11-18 20:23:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.052550231839258) internal successors, (681), 647 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 681 transitions. [2022-11-18 20:23:05,205 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 681 transitions. Word has length 105 [2022-11-18 20:23:05,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:05,205 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 681 transitions. [2022-11-18 20:23:05,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 130 states have (on average 2.4076923076923076) internal successors, (313), 131 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 681 transitions. [2022-11-18 20:23:05,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-18 20:23:05,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:05,207 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 12, 9, 9, 9, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-11-18 20:23:05,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:05,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-18 20:23:05,411 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1299356552, now seen corresponding path program 7 times [2022-11-18 20:23:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:05,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146432083] [2022-11-18 20:23:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 669 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:07,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:07,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146432083] [2022-11-18 20:23:07,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146432083] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:07,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704656341] [2022-11-18 20:23:07,464 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:23:07,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:07,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:07,465 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:07,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-18 20:23:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:07,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-18 20:23:07,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:09,804 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 669 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:09,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 669 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:12,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704656341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:12,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:12,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 154 [2022-11-18 20:23:12,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106459203] [2022-11-18 20:23:12,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:12,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-11-18 20:23:12,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:12,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-11-18 20:23:12,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4308, Invalid=19562, Unknown=0, NotChecked=0, Total=23870 [2022-11-18 20:23:12,877 INFO L87 Difference]: Start difference. First operand 648 states and 681 transitions. Second operand has 155 states, 154 states have (on average 2.227272727272727) internal successors, (343), 155 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:21,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:21,220 INFO L93 Difference]: Finished difference Result 1562 states and 1629 transitions. [2022-11-18 20:23:21,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-11-18 20:23:21,221 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 154 states have (on average 2.227272727272727) internal successors, (343), 155 states have internal predecessors, (343), 0 states have call successors, (0), 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 115 [2022-11-18 20:23:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:21,225 INFO L225 Difference]: With dead ends: 1562 [2022-11-18 20:23:21,225 INFO L226 Difference]: Without dead ends: 1542 [2022-11-18 20:23:21,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27974 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=15988, Invalid=56642, Unknown=0, NotChecked=0, Total=72630 [2022-11-18 20:23:21,228 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1387 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:21,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 215 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 20:23:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-11-18 20:23:22,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 648. [2022-11-18 20:23:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.052550231839258) internal successors, (681), 647 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 681 transitions. [2022-11-18 20:23:22,009 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 681 transitions. Word has length 115 [2022-11-18 20:23:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:22,010 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 681 transitions. [2022-11-18 20:23:22,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 154 states have (on average 2.227272727272727) internal successors, (343), 155 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 681 transitions. [2022-11-18 20:23:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-18 20:23:22,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:22,014 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 16, 11, 11, 11, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1] [2022-11-18 20:23:22,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:22,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:22,220 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:22,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash 879423149, now seen corresponding path program 8 times [2022-11-18 20:23:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:22,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268892408] [2022-11-18 20:23:22,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:25,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:25,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:25,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268892408] [2022-11-18 20:23:25,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268892408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:25,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672833035] [2022-11-18 20:23:25,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:25,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:25,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:25,321 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:25,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-18 20:23:25,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:23:25,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:25,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-18 20:23:25,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:28,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:33,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672833035] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:33,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:33,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 196 [2022-11-18 20:23:33,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117866966] [2022-11-18 20:23:33,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:33,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2022-11-18 20:23:33,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:33,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2022-11-18 20:23:33,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6930, Invalid=31682, Unknown=0, NotChecked=0, Total=38612 [2022-11-18 20:23:33,535 INFO L87 Difference]: Start difference. First operand 648 states and 681 transitions. Second operand has 197 states, 196 states have (on average 2.2091836734693877) internal successors, (433), 197 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:46,235 INFO L93 Difference]: Finished difference Result 1769 states and 1846 transitions. [2022-11-18 20:23:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-11-18 20:23:46,236 INFO L78 Accepts]: Start accepts. Automaton has has 197 states, 196 states have (on average 2.2091836734693877) internal successors, (433), 197 states have internal predecessors, (433), 0 states have call successors, (0), 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 145 [2022-11-18 20:23:46,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:46,241 INFO L225 Difference]: With dead ends: 1769 [2022-11-18 20:23:46,241 INFO L226 Difference]: Without dead ends: 1744 [2022-11-18 20:23:46,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46023 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=25950, Invalid=92042, Unknown=0, NotChecked=0, Total=117992 [2022-11-18 20:23:46,247 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2121 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:46,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 250 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 20:23:46,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-11-18 20:23:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 718. [2022-11-18 20:23:47,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 1.0474198047419805) internal successors, (751), 717 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 751 transitions. [2022-11-18 20:23:47,216 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 751 transitions. Word has length 145 [2022-11-18 20:23:47,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:47,216 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 751 transitions. [2022-11-18 20:23:47,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 196 states have (on average 2.2091836734693877) internal successors, (433), 197 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:47,217 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 751 transitions. [2022-11-18 20:23:47,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-18 20:23:47,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:47,218 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 21, 13, 13, 13, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-18 20:23:47,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:47,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-18 20:23:47,419 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:23:47,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:47,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1621560041, now seen corresponding path program 9 times [2022-11-18 20:23:47,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:47,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724607904] [2022-11-18 20:23:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:47,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 0 proven. 1798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:52,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:52,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724607904] [2022-11-18 20:23:52,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724607904] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:52,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091989801] [2022-11-18 20:23:52,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:23:52,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:52,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:52,235 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:52,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-18 20:23:52,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-11-18 20:23:52,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:52,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-18 20:23:52,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 0 proven. 1798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:57,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:24:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 0 proven. 1798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:04,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091989801] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:24:04,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:24:04,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82, 82] total 244 [2022-11-18 20:24:04,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335571014] [2022-11-18 20:24:04,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:24:04,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 245 states [2022-11-18 20:24:04,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:04,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 245 interpolants. [2022-11-18 20:24:04,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10722, Invalid=49058, Unknown=0, NotChecked=0, Total=59780 [2022-11-18 20:24:04,560 INFO L87 Difference]: Start difference. First operand 718 states and 751 transitions. Second operand has 245 states, 244 states have (on average 2.192622950819672) internal successors, (535), 245 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:24:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:22,987 INFO L93 Difference]: Finished difference Result 1797 states and 1886 transitions. [2022-11-18 20:24:22,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 266 states. [2022-11-18 20:24:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 245 states, 244 states have (on average 2.192622950819672) internal successors, (535), 245 states have internal predecessors, (535), 0 states have call successors, (0), 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 179 [2022-11-18 20:24:22,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:22,991 INFO L225 Difference]: With dead ends: 1797 [2022-11-18 20:24:22,991 INFO L226 Difference]: Without dead ends: 1766 [2022-11-18 20:24:23,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 426 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71966 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=40293, Invalid=142463, Unknown=0, NotChecked=0, Total=182756 [2022-11-18 20:24:23,000 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2352 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:23,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 303 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 20:24:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-11-18 20:24:24,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 850. [2022-11-18 20:24:24,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 1.0400471142520613) internal successors, (883), 849 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:24:24,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 883 transitions. [2022-11-18 20:24:24,072 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 883 transitions. Word has length 179 [2022-11-18 20:24:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:24,073 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 883 transitions. [2022-11-18 20:24:24,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 245 states, 244 states have (on average 2.192622950819672) internal successors, (535), 245 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:24:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 883 transitions. [2022-11-18 20:24:24,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-18 20:24:24,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:24,077 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 15, 15, 15, 14, 14, 14, 13, 13, 2, 1, 1, 1, 1, 1] [2022-11-18 20:24:24,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:24,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-18 20:24:24,284 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:24:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1477703569, now seen corresponding path program 10 times [2022-11-18 20:24:24,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106363210] [2022-11-18 20:24:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:24,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2048 backedges. 0 proven. 2048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:29,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:29,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106363210] [2022-11-18 20:24:29,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106363210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:29,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260402231] [2022-11-18 20:24:29,622 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:24:29,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:29,624 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:29,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-18 20:24:29,910 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:24:29,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:24:29,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-18 20:24:29,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2048 backedges. 0 proven. 2048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:35,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:24:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2048 backedges. 0 proven. 2048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:43,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260402231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:24:43,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:24:43,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86, 86] total 256 [2022-11-18 20:24:43,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424467638] [2022-11-18 20:24:43,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:24:43,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 257 states [2022-11-18 20:24:43,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:43,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2022-11-18 20:24:43,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11638, Invalid=54154, Unknown=0, NotChecked=0, Total=65792 [2022-11-18 20:24:43,053 INFO L87 Difference]: Start difference. First operand 850 states and 883 transitions. Second operand has 257 states, 256 states have (on average 2.34765625) internal successors, (601), 257 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:25:06,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:06,364 INFO L93 Difference]: Finished difference Result 1888 states and 2003 transitions. [2022-11-18 20:25:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-11-18 20:25:06,365 INFO L78 Accepts]: Start accepts. Automaton has has 257 states, 256 states have (on average 2.34765625) internal successors, (601), 257 states have internal predecessors, (601), 0 states have call successors, (0), 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 201 [2022-11-18 20:25:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:06,369 INFO L225 Difference]: With dead ends: 1888 [2022-11-18 20:25:06,369 INFO L226 Difference]: Without dead ends: 1844 [2022-11-18 20:25:06,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 474 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90363 ImplicationChecksByTransitivity, 29.2s TimeCoverageRelationStatistics Valid=44727, Invalid=181373, Unknown=0, NotChecked=0, Total=226100 [2022-11-18 20:25:06,383 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2714 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2714 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 2322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:06,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2714 Valid, 334 Invalid, 2322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 20:25:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2022-11-18 20:25:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1035. [2022-11-18 20:25:07,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1034 states have (on average 1.0570599613152805) internal successors, (1093), 1034 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:25:07,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1093 transitions. [2022-11-18 20:25:07,480 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1093 transitions. Word has length 201 [2022-11-18 20:25:07,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:25:07,481 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1093 transitions. [2022-11-18 20:25:07,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 257 states, 256 states have (on average 2.34765625) internal successors, (601), 257 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:25:07,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1093 transitions. [2022-11-18 20:25:07,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-18 20:25:07,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:25:07,485 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 27, 15, 15, 15, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1] [2022-11-18 20:25:07,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-18 20:25:07,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-18 20:25:07,692 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:25:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:25:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1850806214, now seen corresponding path program 11 times [2022-11-18 20:25:07,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:25:07,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540338494] [2022-11-18 20:25:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:25:07,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:25:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:25:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 0 proven. 2769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:25:14,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:25:14,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540338494] [2022-11-18 20:25:14,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540338494] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:25:14,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716546148] [2022-11-18 20:25:14,280 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:25:14,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:25:14,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:25:14,282 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:25:14,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-18 20:25:14,460 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2022-11-18 20:25:14,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:25:14,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-18 20:25:14,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:25:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 0 proven. 2769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:25:21,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:25:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 0 proven. 2769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:25:31,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716546148] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:25:31,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:25:31,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100, 100] total 298 [2022-11-18 20:25:31,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338885841] [2022-11-18 20:25:31,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:25:31,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 299 states [2022-11-18 20:25:31,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:25:31,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 299 interpolants. [2022-11-18 20:25:32,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16020, Invalid=73082, Unknown=0, NotChecked=0, Total=89102 [2022-11-18 20:25:32,006 INFO L87 Difference]: Start difference. First operand 1035 states and 1093 transitions. Second operand has 299 states, 298 states have (on average 2.1778523489932886) internal successors, (649), 299 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:25:59,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:25:59,565 INFO L93 Difference]: Finished difference Result 2842 states and 2970 transitions. [2022-11-18 20:25:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2022-11-18 20:25:59,566 INFO L78 Accepts]: Start accepts. Automaton has has 299 states, 298 states have (on average 2.1778523489932886) internal successors, (649), 299 states have internal predecessors, (649), 0 states have call successors, (0), 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 217 [2022-11-18 20:25:59,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:25:59,575 INFO L225 Difference]: With dead ends: 2842 [2022-11-18 20:25:59,575 INFO L226 Difference]: Without dead ends: 2804 [2022-11-18 20:25:59,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 520 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107780 ImplicationChecksByTransitivity, 35.9s TimeCoverageRelationStatistics Valid=60211, Invalid=211751, Unknown=0, NotChecked=0, Total=271962 [2022-11-18 20:25:59,596 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3129 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:25:59,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3129 Valid, 359 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 20:25:59,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-11-18 20:26:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 1189. [2022-11-18 20:26:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1188 states have (on average 1.0496632996632997) internal successors, (1247), 1188 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:26:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1247 transitions. [2022-11-18 20:26:00,951 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1247 transitions. Word has length 217 [2022-11-18 20:26:00,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:26:00,952 INFO L495 AbstractCegarLoop]: Abstraction has 1189 states and 1247 transitions. [2022-11-18 20:26:00,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 299 states, 298 states have (on average 2.1778523489932886) internal successors, (649), 299 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:26:00,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1247 transitions. [2022-11-18 20:26:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-18 20:26:00,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:26:00,958 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 34, 17, 17, 17, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1] [2022-11-18 20:26:00,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:01,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-18 20:26:01,167 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:26:01,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash -549109702, now seen corresponding path program 12 times [2022-11-18 20:26:01,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:01,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425588384] [2022-11-18 20:26:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:01,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 0 proven. 4119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:09,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:09,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425588384] [2022-11-18 20:26:09,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425588384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:09,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118849658] [2022-11-18 20:26:09,732 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:26:09,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:09,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:09,734 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:09,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-18 20:26:09,955 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 35 check-sat command(s) [2022-11-18 20:26:09,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:26:09,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-18 20:26:09,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 0 proven. 4119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:19,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:35,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 0 proven. 4119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:35,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118849658] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:35,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:35,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120, 120] total 358 [2022-11-18 20:26:35,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434499494] [2022-11-18 20:26:35,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:35,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 359 states [2022-11-18 20:26:35,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:35,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 359 interpolants. [2022-11-18 20:26:35,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23208, Invalid=105314, Unknown=0, NotChecked=0, Total=128522 [2022-11-18 20:26:35,239 INFO L87 Difference]: Start difference. First operand 1189 states and 1247 transitions. Second operand has 359 states, 358 states have (on average 2.164804469273743) internal successors, (775), 359 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:27:16,953 INFO L93 Difference]: Finished difference Result 3092 states and 3236 transitions. [2022-11-18 20:27:16,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 388 states. [2022-11-18 20:27:16,954 INFO L78 Accepts]: Start accepts. Automaton has has 359 states, 358 states have (on average 2.164804469273743) internal successors, (775), 359 states have internal predecessors, (775), 0 states have call successors, (0), 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 259 [2022-11-18 20:27:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:27:16,963 INFO L225 Difference]: With dead ends: 3092 [2022-11-18 20:27:16,963 INFO L226 Difference]: Without dead ends: 3046 [2022-11-18 20:27:16,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 903 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 624 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155834 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=87051, Invalid=304199, Unknown=0, NotChecked=0, Total=391250 [2022-11-18 20:27:16,984 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4204 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4204 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:27:16,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4204 Valid, 418 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-18 20:27:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2022-11-18 20:27:18,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 1365. [2022-11-18 20:27:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 1.0432551319648093) internal successors, (1423), 1364 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:18,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1423 transitions. [2022-11-18 20:27:18,862 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1423 transitions. Word has length 259 [2022-11-18 20:27:18,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:27:18,863 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 1423 transitions. [2022-11-18 20:27:18,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 359 states, 358 states have (on average 2.164804469273743) internal successors, (775), 359 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1423 transitions. [2022-11-18 20:27:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-18 20:27:18,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:27:18,867 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 29, 29, 29, 18, 18, 18, 17, 17, 12, 1, 1, 1, 1, 1] [2022-11-18 20:27:18,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-18 20:27:19,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-11-18 20:27:19,068 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:27:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1478483941, now seen corresponding path program 13 times [2022-11-18 20:27:19,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:19,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678108679] [2022-11-18 20:27:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:19,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 0 proven. 4374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:29,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:29,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678108679] [2022-11-18 20:27:29,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678108679] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:27:29,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460519316] [2022-11-18 20:27:29,141 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:27:29,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:29,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:29,144 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:27:29,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-18 20:27:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:29,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 131 conjunts are in the unsatisfiable core [2022-11-18 20:27:29,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:27:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 0 proven. 4374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:40,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:27:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 0 proven. 4374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:57,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460519316] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:27:57,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:27:57,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 388 [2022-11-18 20:27:57,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865383619] [2022-11-18 20:27:57,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:27:57,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 389 states [2022-11-18 20:27:57,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:57,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 389 interpolants. [2022-11-18 20:27:57,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25810, Invalid=125122, Unknown=0, NotChecked=0, Total=150932 [2022-11-18 20:27:57,941 INFO L87 Difference]: Start difference. First operand 1365 states and 1423 transitions. Second operand has 389 states, 388 states have (on average 2.2912371134020617) internal successors, (889), 389 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:53,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:53,910 INFO L93 Difference]: Finished difference Result 3086 states and 3236 transitions. [2022-11-18 20:28:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 454 states. [2022-11-18 20:28:53,911 INFO L78 Accepts]: Start accepts. Automaton has has 389 states, 388 states have (on average 2.2912371134020617) internal successors, (889), 389 states have internal predecessors, (889), 0 states have call successors, (0), 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 297 [2022-11-18 20:28:53,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:53,920 INFO L225 Difference]: With dead ends: 3086 [2022-11-18 20:28:53,920 INFO L226 Difference]: Without dead ends: 3037 [2022-11-18 20:28:53,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1045 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 710 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203108 ImplicationChecksByTransitivity, 62.6s TimeCoverageRelationStatistics Valid=102126, Invalid=404106, Unknown=0, NotChecked=0, Total=506232 [2022-11-18 20:28:53,960 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4304 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:53,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4304 Valid, 470 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 20:28:53,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2022-11-18 20:28:55,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 1485. [2022-11-18 20:28:55,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1484 states have (on average 1.0505390835579516) internal successors, (1559), 1484 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:55,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1559 transitions. [2022-11-18 20:28:55,866 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1559 transitions. Word has length 297 [2022-11-18 20:28:55,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:55,867 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 1559 transitions. [2022-11-18 20:28:55,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 389 states, 388 states have (on average 2.2912371134020617) internal successors, (889), 389 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:55,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1559 transitions. [2022-11-18 20:28:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-11-18 20:28:55,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:55,870 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 51, 19, 19, 19, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1] [2022-11-18 20:28:55,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:56,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:56,071 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:28:56,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:56,071 INFO L85 PathProgramCache]: Analyzing trace with hash -931960032, now seen corresponding path program 14 times [2022-11-18 20:28:56,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:56,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815762696] [2022-11-18 20:28:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:56,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 7933 backedges. 0 proven. 7933 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:11,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:11,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815762696] [2022-11-18 20:29:11,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815762696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:29:11,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356768621] [2022-11-18 20:29:11,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:29:11,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:29:11,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:29:11,496 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:29:11,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-18 20:29:11,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:29:11,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:29:11,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 161 conjunts are in the unsatisfiable core [2022-11-18 20:29:11,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:29:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 7933 backedges. 0 proven. 7933 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:27,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:29:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7933 backedges. 0 proven. 7933 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:54,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356768621] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:29:54,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:29:54,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [160, 160, 160] total 478 [2022-11-18 20:29:54,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319211149] [2022-11-18 20:29:54,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:29:54,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 479 states [2022-11-18 20:29:54,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 479 interpolants. [2022-11-18 20:29:54,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42240, Invalid=186722, Unknown=0, NotChecked=0, Total=228962 [2022-11-18 20:29:54,113 INFO L87 Difference]: Start difference. First operand 1485 states and 1559 transitions. Second operand has 479 states, 478 states have (on average 2.1359832635983262) internal successors, (1021), 479 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:23,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:23,208 INFO L93 Difference]: Finished difference Result 4562 states and 4758 transitions. [2022-11-18 20:31:23,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-11-18 20:31:23,209 INFO L78 Accepts]: Start accepts. Automaton has has 479 states, 478 states have (on average 2.1359832635983262) internal successors, (1021), 479 states have internal predecessors, (1021), 0 states have call successors, (0), 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 341 [2022-11-18 20:31:23,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:23,219 INFO L225 Difference]: With dead ends: 4562 [2022-11-18 20:31:23,219 INFO L226 Difference]: Without dead ends: 4498 [2022-11-18 20:31:23,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 828 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275328 ImplicationChecksByTransitivity, 87.7s TimeCoverageRelationStatistics Valid=155892, Invalid=532178, Unknown=0, NotChecked=0, Total=688070 [2022-11-18 20:31:23,269 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5138 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 2825 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5138 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 2825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:23,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5138 Valid, 555 Invalid, 3347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [522 Valid, 2825 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-18 20:31:23,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2022-11-18 20:31:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 1881. [2022-11-18 20:31:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1880 states have (on average 1.0398936170212767) internal successors, (1955), 1880 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 1955 transitions. [2022-11-18 20:31:26,414 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 1955 transitions. Word has length 341 [2022-11-18 20:31:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:26,415 INFO L495 AbstractCegarLoop]: Abstraction has 1881 states and 1955 transitions. [2022-11-18 20:31:26,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 479 states, 478 states have (on average 2.1359832635983262) internal successors, (1021), 479 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 1955 transitions. [2022-11-18 20:31:26,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-11-18 20:31:26,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:26,419 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 39, 39, 39, 28, 20, 20, 20, 19, 19, 1, 1, 1, 1, 1] [2022-11-18 20:31:26,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:26,619 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:31:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:26,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1890673943, now seen corresponding path program 15 times [2022-11-18 20:31:26,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:26,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722172983] [2022-11-18 20:31:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:26,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 7754 backedges. 0 proven. 7754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:44,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722172983] [2022-11-18 20:31:44,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722172983] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:44,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040669486] [2022-11-18 20:31:44,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:31:44,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:44,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:44,203 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:44,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-18 20:31:44,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2022-11-18 20:31:44,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:31:44,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 175 conjunts are in the unsatisfiable core [2022-11-18 20:31:44,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7754 backedges. 0 proven. 7754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:02,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:32:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 7754 backedges. 0 proven. 7754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:31,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040669486] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:32:31,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:32:31,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [174, 174, 174] total 520 [2022-11-18 20:32:31,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654611582] [2022-11-18 20:32:31,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:32:31,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 521 states [2022-11-18 20:32:31,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:31,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 521 interpolants. [2022-11-18 20:32:31,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46062, Invalid=224858, Unknown=0, NotChecked=0, Total=270920 [2022-11-18 20:32:31,660 INFO L87 Difference]: Start difference. First operand 1881 states and 1955 transitions. Second operand has 521 states, 520 states have (on average 2.2403846153846154) internal successors, (1165), 521 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:25,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:25,884 INFO L93 Difference]: Finished difference Result 4482 states and 4668 transitions. [2022-11-18 20:34:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 594 states. [2022-11-18 20:34:25,885 INFO L78 Accepts]: Start accepts. Automaton has has 521 states, 520 states have (on average 2.2403846153846154) internal successors, (1165), 521 states have internal predecessors, (1165), 0 states have call successors, (0), 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 389 [2022-11-18 20:34:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:25,891 INFO L225 Difference]: With dead ends: 4482 [2022-11-18 20:34:25,891 INFO L226 Difference]: Without dead ends: 4423 [2022-11-18 20:34:25,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1369 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 938 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354661 ImplicationChecksByTransitivity, 102.6s TimeCoverageRelationStatistics Valid=183005, Invalid=699655, Unknown=0, NotChecked=0, Total=882660 [2022-11-18 20:34:25,934 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6378 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 1113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 4290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1113 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:25,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6378 Valid, 625 Invalid, 4290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1113 Valid, 3177 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-18 20:34:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-11-18 20:34:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 1941. [2022-11-18 20:34:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1940 states have (on average 1.0427835051546392) internal successors, (2023), 1940 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 2023 transitions. [2022-11-18 20:34:28,499 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 2023 transitions. Word has length 389 [2022-11-18 20:34:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:28,499 INFO L495 AbstractCegarLoop]: Abstraction has 1941 states and 2023 transitions. [2022-11-18 20:34:28,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 521 states, 520 states have (on average 2.2403846153846154) internal successors, (1165), 521 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:34:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 2023 transitions. [2022-11-18 20:34:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-18 20:34:28,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:28,504 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 47, 41, 41, 41, 21, 21, 21, 20, 20, 1, 1, 1, 1, 1] [2022-11-18 20:34:28,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-18 20:34:28,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511fdbb3-ca13-4d07-98a8-d1048fde5165/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-11-18 20:34:28,704 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:34:28,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1561820615, now seen corresponding path program 16 times [2022-11-18 20:34:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:28,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91290830] [2022-11-18 20:34:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat