./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Parts.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ --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 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- 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-dbf71c6-m [2022-10-17 10:29:58,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:29:58,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:29:58,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:29:58,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:29:58,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:29:58,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:29:58,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:29:58,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:29:58,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:29:58,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:29:58,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:29:58,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:29:58,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:29:58,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:29:58,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:29:58,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:29:58,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:29:58,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:29:58,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:29:58,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:29:58,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:29:58,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:29:58,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:29:58,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:29:58,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:29:58,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:29:58,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:29:58,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:29:58,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:29:58,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:29:58,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:29:58,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:29:58,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:29:58,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:29:58,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:29:58,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:29:58,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:29:58,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:29:58,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:29:58,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:29:58,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-10-17 10:29:58,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:29:58,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:29:58,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:29:58,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:29:58,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:29:58,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:29:58,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:29:58,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:29:58,615 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:29:58,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:29:58,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:29:58,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:29:58,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:29:58,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:29:58,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:29:58,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:29:58,619 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 10:29:58,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:29:58,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:29:58,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:29:58,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:29:58,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:29:58,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:29:58,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:29:58,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:29:58,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:29:58,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:29:58,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:29:58,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:29:58,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:29:58,624 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_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2022-10-17 10:29:58,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:29:58,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:29:58,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:29:58,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:29:58,984 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:29:58,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-numeric/Parts.c [2022-10-17 10:29:59,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/data/a069a8205/166e4225befd49308bb0209ee06b9467/FLAG02eb8ed57 [2022-10-17 10:29:59,647 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:29:59,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/sv-benchmarks/c/termination-numeric/Parts.c [2022-10-17 10:29:59,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/data/a069a8205/166e4225befd49308bb0209ee06b9467/FLAG02eb8ed57 [2022-10-17 10:29:59,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/data/a069a8205/166e4225befd49308bb0209ee06b9467 [2022-10-17 10:29:59,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:29:59,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:30:00,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:00,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:30:00,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:30:00,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:59" (1/1) ... [2022-10-17 10:30:00,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547855ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00, skipping insertion in model container [2022-10-17 10:30:00,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:59" (1/1) ... [2022-10-17 10:30:00,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:30:00,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:30:00,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:00,295 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:30:00,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:30:00,326 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:30:00,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00 WrapperNode [2022-10-17 10:30:00,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:30:00,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:00,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:30:00,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:30:00,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,364 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-10-17 10:30:00,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:30:00,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:30:00,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:30:00,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:30:00,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,389 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:30:00,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:30:00,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:30:00,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:30:00,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (1/1) ... [2022-10-17 10:30:00,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:30:00,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:00,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:30:00,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:30:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2022-10-17 10:30:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2022-10-17 10:30:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:30:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:30:00,549 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:30:00,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:30:00,766 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:30:00,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:30:00,789 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:30:00,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:00 BoogieIcfgContainer [2022-10-17 10:30:00,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:30:00,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:30:00,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:30:00,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:30:00,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:29:59" (1/3) ... [2022-10-17 10:30:00,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d211b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:00, skipping insertion in model container [2022-10-17 10:30:00,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:30:00" (2/3) ... [2022-10-17 10:30:00,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d211b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:00, skipping insertion in model container [2022-10-17 10:30:00,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:00" (3/3) ... [2022-10-17 10:30:00,811 INFO L112 eAbstractionObserver]: Analyzing ICFG Parts.c [2022-10-17 10:30:00,838 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:30:00,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-17 10:30:00,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:30:00,944 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=FINITE_AUTOMATA, 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;@132d8dfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:30:00,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-17 10:30:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:30:00,973 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:00,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:00,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:00,984 INFO L85 PathProgramCache]: Analyzing trace with hash -602953989, now seen corresponding path program 1 times [2022-10-17 10:30:00,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:00,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154278059] [2022-10-17 10:30:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:01,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:01,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154278059] [2022-10-17 10:30:01,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154278059] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:01,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:01,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:30:01,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437760981] [2022-10-17 10:30:01,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:01,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:30:01,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:01,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:30:01,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:30:01,277 INFO L87 Difference]: Start difference. First operand has 45 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-10-17 10:30:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:01,320 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2022-10-17 10:30:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:30:01,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2022-10-17 10:30:01,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:01,335 INFO L225 Difference]: With dead ends: 86 [2022-10-17 10:30:01,335 INFO L226 Difference]: Without dead ends: 42 [2022-10-17 10:30:01,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:30:01,349 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:01,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-17 10:30:01,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-17 10:30:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 36 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-10-17 10:30:01,420 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2022-10-17 10:30:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:01,421 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-10-17 10:30:01,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-10-17 10:30:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-10-17 10:30:01,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:30:01,425 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:01,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:01,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:30:01,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:01,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:01,428 INFO L85 PathProgramCache]: Analyzing trace with hash -602965521, now seen corresponding path program 1 times [2022-10-17 10:30:01,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:01,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026374614] [2022-10-17 10:30:01,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:01,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:01,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026374614] [2022-10-17 10:30:01,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026374614] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:01,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:01,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:30:01,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76228758] [2022-10-17 10:30:01,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:01,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:01,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:01,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:01,598 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2022-10-17 10:30:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:01,693 INFO L93 Difference]: Finished difference Result 81 states and 96 transitions. [2022-10-17 10:30:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:30:01,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 [2022-10-17 10:30:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:01,710 INFO L225 Difference]: With dead ends: 81 [2022-10-17 10:30:01,710 INFO L226 Difference]: Without dead ends: 43 [2022-10-17 10:30:01,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:01,713 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 21 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:01,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 111 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-10-17 10:30:01,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-10-17 10:30:01,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.5) internal successors, (42), 37 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-10-17 10:30:01,770 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 8 [2022-10-17 10:30:01,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:01,770 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-10-17 10:30:01,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2022-10-17 10:30:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-10-17 10:30:01,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 10:30:01,772 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:01,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:01,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:30:01,773 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:01,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:01,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1944725597, now seen corresponding path program 1 times [2022-10-17 10:30:01,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:01,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854792051] [2022-10-17 10:30:01,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:01,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:01,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:01,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854792051] [2022-10-17 10:30:01,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854792051] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:01,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:01,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:30:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559690290] [2022-10-17 10:30:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:01,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:30:01,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:01,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:30:01,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:01,956 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:02,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:02,124 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2022-10-17 10:30:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:30:02,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-17 10:30:02,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:02,129 INFO L225 Difference]: With dead ends: 103 [2022-10-17 10:30:02,140 INFO L226 Difference]: Without dead ends: 64 [2022-10-17 10:30:02,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:30:02,143 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:02,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 150 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-17 10:30:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2022-10-17 10:30:02,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 47 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 10:30:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2022-10-17 10:30:02,162 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 12 [2022-10-17 10:30:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:02,162 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2022-10-17 10:30:02,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-10-17 10:30:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 10:30:02,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:02,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:02,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:30:02,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:02,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash 565418330, now seen corresponding path program 1 times [2022-10-17 10:30:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:02,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312532948] [2022-10-17 10:30:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:02,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:02,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:02,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312532948] [2022-10-17 10:30:02,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312532948] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:02,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:02,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:30:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185977986] [2022-10-17 10:30:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:02,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:02,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:02,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:02,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:02,309 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:02,373 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2022-10-17 10:30:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:30:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-10-17 10:30:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:02,375 INFO L225 Difference]: With dead ends: 67 [2022-10-17 10:30:02,376 INFO L226 Difference]: Without dead ends: 66 [2022-10-17 10:30:02,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:02,378 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 5 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 129 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 [2022-10-17 10:30:02,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 129 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:02,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-17 10:30:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2022-10-17 10:30:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 53 states have internal predecessors, (61), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-17 10:30:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2022-10-17 10:30:02,397 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 14 [2022-10-17 10:30:02,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:02,397 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2022-10-17 10:30:02,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2022-10-17 10:30:02,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:30:02,399 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:02,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:02,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:30:02,399 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:02,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:02,400 INFO L85 PathProgramCache]: Analyzing trace with hash 348099144, now seen corresponding path program 1 times [2022-10-17 10:30:02,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:02,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825955067] [2022-10-17 10:30:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:02,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:02,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:02,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825955067] [2022-10-17 10:30:02,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825955067] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:02,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:02,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:30:02,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247330686] [2022-10-17 10:30:02,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:02,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:02,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:02,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:02,479 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:02,531 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2022-10-17 10:30:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:30:02,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-10-17 10:30:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:02,534 INFO L225 Difference]: With dead ends: 63 [2022-10-17 10:30:02,534 INFO L226 Difference]: Without dead ends: 62 [2022-10-17 10:30:02,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:02,547 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:02,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 116 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:02,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-17 10:30:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-17 10:30:02,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 52 states have internal predecessors, (59), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-17 10:30:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2022-10-17 10:30:02,573 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 15 [2022-10-17 10:30:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:02,573 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2022-10-17 10:30:02,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2022-10-17 10:30:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 10:30:02,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:02,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:02,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:30:02,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:02,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2124333102, now seen corresponding path program 1 times [2022-10-17 10:30:02,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:02,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590971979] [2022-10-17 10:30:02,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:02,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:30:02,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:02,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590971979] [2022-10-17 10:30:02,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590971979] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:02,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:02,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:30:02,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845290339] [2022-10-17 10:30:02,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:02,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:02,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:02,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:02,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:02,676 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:02,711 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2022-10-17 10:30:02,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:30:02,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-10-17 10:30:02,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:02,713 INFO L225 Difference]: With dead ends: 68 [2022-10-17 10:30:02,714 INFO L226 Difference]: Without dead ends: 67 [2022-10-17 10:30:02,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:02,716 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 6 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 127 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 [2022-10-17 10:30:02,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 127 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:02,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-17 10:30:02,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2022-10-17 10:30:02,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.326086956521739) internal successors, (61), 54 states have internal predecessors, (61), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-17 10:30:02,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2022-10-17 10:30:02,731 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 18 [2022-10-17 10:30:02,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:02,732 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2022-10-17 10:30:02,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2022-10-17 10:30:02,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:30:02,734 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:02,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:02,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:30:02,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:02,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:02,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1429816616, now seen corresponding path program 1 times [2022-10-17 10:30:02,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:02,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534192175] [2022-10-17 10:30:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:02,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:30:02,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:02,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534192175] [2022-10-17 10:30:02,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534192175] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:02,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:02,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:30:02,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182222232] [2022-10-17 10:30:02,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:02,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:02,822 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:02,848 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2022-10-17 10:30:02,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:30:02,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-17 10:30:02,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:02,850 INFO L225 Difference]: With dead ends: 64 [2022-10-17 10:30:02,850 INFO L226 Difference]: Without dead ends: 63 [2022-10-17 10:30:02,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:02,852 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:02,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 113 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:02,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-17 10:30:02,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-17 10:30:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 53 states have internal predecessors, (60), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-17 10:30:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2022-10-17 10:30:02,880 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 19 [2022-10-17 10:30:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:02,881 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2022-10-17 10:30:02,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2022-10-17 10:30:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 10:30:02,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:02,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:02,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:30:02,884 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash -637261571, now seen corresponding path program 1 times [2022-10-17 10:30:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:02,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185926174] [2022-10-17 10:30:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:02,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 10:30:03,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:03,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185926174] [2022-10-17 10:30:03,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185926174] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:03,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875474630] [2022-10-17 10:30:03,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:03,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:03,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:03,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:03,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:30:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:03,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:30:03,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 10:30:03,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 10:30:03,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875474630] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:03,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:03,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-17 10:30:03,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497607235] [2022-10-17 10:30:03,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:03,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:30:03,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:03,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:30:03,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:30:03,374 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:03,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:03,575 INFO L93 Difference]: Finished difference Result 123 states and 151 transitions. [2022-10-17 10:30:03,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:30:03,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 24 [2022-10-17 10:30:03,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:03,588 INFO L225 Difference]: With dead ends: 123 [2022-10-17 10:30:03,588 INFO L226 Difference]: Without dead ends: 122 [2022-10-17 10:30:03,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:30:03,590 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:03,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 258 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:03,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-17 10:30:03,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 99. [2022-10-17 10:30:03,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.263157894736842) internal successors, (96), 83 states have internal predecessors, (96), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-17 10:30:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 122 transitions. [2022-10-17 10:30:03,626 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 122 transitions. Word has length 24 [2022-10-17 10:30:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:03,626 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 122 transitions. [2022-10-17 10:30:03,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 122 transitions. [2022-10-17 10:30:03,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 10:30:03,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:03,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:03,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:03,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:03,849 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:03,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:03,849 INFO L85 PathProgramCache]: Analyzing trace with hash 21903950, now seen corresponding path program 1 times [2022-10-17 10:30:03,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:03,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367685461] [2022-10-17 10:30:03,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:03,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:04,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:04,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367685461] [2022-10-17 10:30:04,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367685461] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:04,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153480299] [2022-10-17 10:30:04,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:04,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:04,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:04,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:30:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:04,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:30:04,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:04,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:04,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153480299] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:04,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:04,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2022-10-17 10:30:04,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417304199] [2022-10-17 10:30:04,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:04,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-17 10:30:04,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:04,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-17 10:30:04,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:30:04,497 INFO L87 Difference]: Start difference. First operand 99 states and 122 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:30:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:04,730 INFO L93 Difference]: Finished difference Result 164 states and 200 transitions. [2022-10-17 10:30:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:30:04,731 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-10-17 10:30:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:04,737 INFO L225 Difference]: With dead ends: 164 [2022-10-17 10:30:04,738 INFO L226 Difference]: Without dead ends: 101 [2022-10-17 10:30:04,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:30:04,748 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 27 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:04,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 308 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:04,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-17 10:30:04,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2022-10-17 10:30:04,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.25) internal successors, (95), 83 states have internal predecessors, (95), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-17 10:30:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2022-10-17 10:30:04,770 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 27 [2022-10-17 10:30:04,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:04,770 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2022-10-17 10:30:04,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:30:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2022-10-17 10:30:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 10:30:04,773 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:04,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:04,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-17 10:30:04,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:05,000 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:05,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:05,001 INFO L85 PathProgramCache]: Analyzing trace with hash -19567733, now seen corresponding path program 2 times [2022-10-17 10:30:05,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:05,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951989603] [2022-10-17 10:30:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:05,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-17 10:30:05,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:05,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951989603] [2022-10-17 10:30:05,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951989603] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:05,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:05,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:30:05,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302860041] [2022-10-17 10:30:05,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:05,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:30:05,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:05,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:30:05,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:05,092 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:05,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:05,158 INFO L93 Difference]: Finished difference Result 169 states and 212 transitions. [2022-10-17 10:30:05,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:30:05,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-10-17 10:30:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:05,161 INFO L225 Difference]: With dead ends: 169 [2022-10-17 10:30:05,161 INFO L226 Difference]: Without dead ends: 110 [2022-10-17 10:30:05,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:30:05,163 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 12 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:05,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 159 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:05,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-17 10:30:05,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2022-10-17 10:30:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 90 states have internal predecessors, (103), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-17 10:30:05,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2022-10-17 10:30:05,183 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 37 [2022-10-17 10:30:05,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:05,184 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2022-10-17 10:30:05,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2022-10-17 10:30:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 10:30:05,186 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:05,187 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:05,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:30:05,187 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:05,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:05,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1293096832, now seen corresponding path program 1 times [2022-10-17 10:30:05,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:05,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189953745] [2022-10-17 10:30:05,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:05,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:30:05,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:05,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189953745] [2022-10-17 10:30:05,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189953745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:05,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963891693] [2022-10-17 10:30:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:05,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:05,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:05,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:05,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:30:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:05,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:30:05,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 10:30:05,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:30:05,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963891693] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:05,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:30:05,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-10-17 10:30:05,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346984601] [2022-10-17 10:30:05,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:05,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:30:05,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:05,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:30:05,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:30:05,617 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:30:05,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:05,760 INFO L93 Difference]: Finished difference Result 184 states and 224 transitions. [2022-10-17 10:30:05,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:30:05,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-10-17 10:30:05,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:05,763 INFO L225 Difference]: With dead ends: 184 [2022-10-17 10:30:05,763 INFO L226 Difference]: Without dead ends: 118 [2022-10-17 10:30:05,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:30:05,765 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:05,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 161 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:05,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-17 10:30:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2022-10-17 10:30:05,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 94 states have internal predecessors, (109), 13 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2022-10-17 10:30:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 138 transitions. [2022-10-17 10:30:05,784 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 138 transitions. Word has length 43 [2022-10-17 10:30:05,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:05,784 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 138 transitions. [2022-10-17 10:30:05,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:30:05,785 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 138 transitions. [2022-10-17 10:30:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 10:30:05,787 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:05,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:05,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:06,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-17 10:30:06,001 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:06,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:06,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1218630964, now seen corresponding path program 1 times [2022-10-17 10:30:06,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:06,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451715227] [2022-10-17 10:30:06,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:06,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:30:06,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:06,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451715227] [2022-10-17 10:30:06,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451715227] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:06,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250705161] [2022-10-17 10:30:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:06,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:06,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:06,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:06,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:30:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:06,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:30:06,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:30:06,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:30:06,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250705161] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:06,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:06,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-10-17 10:30:06,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715951728] [2022-10-17 10:30:06,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:06,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:30:06,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:06,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:30:06,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:30:06,446 INFO L87 Difference]: Start difference. First operand 114 states and 138 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:06,704 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2022-10-17 10:30:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:30:06,705 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2022-10-17 10:30:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:06,707 INFO L225 Difference]: With dead ends: 184 [2022-10-17 10:30:06,708 INFO L226 Difference]: Without dead ends: 114 [2022-10-17 10:30:06,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 85 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:30:06,709 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 33 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:06,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 278 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-17 10:30:06,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-17 10:30:06,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 94 states have internal predecessors, (108), 13 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2022-10-17 10:30:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-10-17 10:30:06,739 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 44 [2022-10-17 10:30:06,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:06,747 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-10-17 10:30:06,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:06,747 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-10-17 10:30:06,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 10:30:06,755 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:06,756 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:06,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:06,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:06,969 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:06,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:06,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1696880930, now seen corresponding path program 1 times [2022-10-17 10:30:06,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:06,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215600609] [2022-10-17 10:30:06,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:06,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:07,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:30:07,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:07,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215600609] [2022-10-17 10:30:07,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215600609] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:07,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778149199] [2022-10-17 10:30:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:07,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:07,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:07,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:07,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:30:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:07,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:30:07,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:30:07,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-17 10:30:07,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778149199] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:07,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:07,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-10-17 10:30:07,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801540373] [2022-10-17 10:30:07,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:07,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-17 10:30:07,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:07,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-17 10:30:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:30:07,424 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:07,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:07,868 INFO L93 Difference]: Finished difference Result 197 states and 260 transitions. [2022-10-17 10:30:07,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-17 10:30:07,869 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2022-10-17 10:30:07,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:07,872 INFO L225 Difference]: With dead ends: 197 [2022-10-17 10:30:07,873 INFO L226 Difference]: Without dead ends: 195 [2022-10-17 10:30:07,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2022-10-17 10:30:07,875 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 164 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:07,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 206 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:30:07,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-17 10:30:07,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 173. [2022-10-17 10:30:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 141 states have internal predecessors, (169), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2022-10-17 10:30:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 217 transitions. [2022-10-17 10:30:07,901 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 217 transitions. Word has length 48 [2022-10-17 10:30:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:07,901 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 217 transitions. [2022-10-17 10:30:07,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:30:07,902 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 217 transitions. [2022-10-17 10:30:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-17 10:30:07,903 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:07,904 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:07,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:08,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-17 10:30:08,128 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:08,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:08,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1063701326, now seen corresponding path program 1 times [2022-10-17 10:30:08,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:08,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931293244] [2022-10-17 10:30:08,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:08,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,178 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-17 10:30:08,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931293244] [2022-10-17 10:30:08,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931293244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:08,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:08,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:30:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472382519] [2022-10-17 10:30:08,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:08,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:30:08,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:08,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:30:08,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:30:08,181 INFO L87 Difference]: Start difference. First operand 173 states and 217 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:08,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:08,240 INFO L93 Difference]: Finished difference Result 181 states and 241 transitions. [2022-10-17 10:30:08,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:30:08,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-10-17 10:30:08,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:08,243 INFO L225 Difference]: With dead ends: 181 [2022-10-17 10:30:08,246 INFO L226 Difference]: Without dead ends: 180 [2022-10-17 10:30:08,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:30:08,248 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:08,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-17 10:30:08,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2022-10-17 10:30:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 137 states have (on average 1.218978102189781) internal successors, (167), 140 states have internal predecessors, (167), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2022-10-17 10:30:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 215 transitions. [2022-10-17 10:30:08,280 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 215 transitions. Word has length 49 [2022-10-17 10:30:08,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:08,282 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 215 transitions. [2022-10-17 10:30:08,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:30:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 215 transitions. [2022-10-17 10:30:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 10:30:08,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:08,287 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:08,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-17 10:30:08,287 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:08,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:08,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2029586074, now seen corresponding path program 2 times [2022-10-17 10:30:08,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:08,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720021132] [2022-10-17 10:30:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:08,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:30:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:30:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-17 10:30:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:30:08,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:08,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720021132] [2022-10-17 10:30:08,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720021132] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:08,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302191064] [2022-10-17 10:30:08,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:30:08,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:08,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:08,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:08,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:30:08,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:30:08,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:08,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 10:30:08,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:30:08,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:08,911 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:30:08,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302191064] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:08,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:08,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-10-17 10:30:08,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398466262] [2022-10-17 10:30:08,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:08,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-17 10:30:08,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:08,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-17 10:30:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-10-17 10:30:08,915 INFO L87 Difference]: Start difference. First operand 172 states and 215 transitions. Second operand has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-10-17 10:30:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:09,196 INFO L93 Difference]: Finished difference Result 356 states and 452 transitions. [2022-10-17 10:30:09,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-17 10:30:09,197 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 54 [2022-10-17 10:30:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:09,201 INFO L225 Difference]: With dead ends: 356 [2022-10-17 10:30:09,202 INFO L226 Difference]: Without dead ends: 355 [2022-10-17 10:30:09,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-10-17 10:30:09,207 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 149 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:09,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 370 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-10-17 10:30:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 280. [2022-10-17 10:30:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 227 states have (on average 1.2114537444933922) internal successors, (275), 230 states have internal predecessors, (275), 39 states have call successors, (39), 6 states have call predecessors, (39), 8 states have return successors, (45), 43 states have call predecessors, (45), 39 states have call successors, (45) [2022-10-17 10:30:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 359 transitions. [2022-10-17 10:30:09,243 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 359 transitions. Word has length 54 [2022-10-17 10:30:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:09,244 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 359 transitions. [2022-10-17 10:30:09,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-10-17 10:30:09,245 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 359 transitions. [2022-10-17 10:30:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:30:09,246 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:09,247 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:09,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:09,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-17 10:30:09,464 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:09,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:09,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1963933763, now seen corresponding path program 2 times [2022-10-17 10:30:09,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:09,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622727049] [2022-10-17 10:30:09,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:09,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-17 10:30:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-17 10:30:09,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:09,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622727049] [2022-10-17 10:30:09,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622727049] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:09,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942926056] [2022-10-17 10:30:09,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:30:09,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:09,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:09,620 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:09,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 10:30:09,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:30:09,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:09,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:30:09,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-17 10:30:09,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-17 10:30:09,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942926056] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:09,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:09,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2022-10-17 10:30:09,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293761558] [2022-10-17 10:30:09,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:09,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-17 10:30:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:09,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-17 10:30:09,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-10-17 10:30:09,936 INFO L87 Difference]: Start difference. First operand 280 states and 359 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 10:30:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:10,708 INFO L93 Difference]: Finished difference Result 431 states and 554 transitions. [2022-10-17 10:30:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-17 10:30:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 55 [2022-10-17 10:30:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:10,713 INFO L225 Difference]: With dead ends: 431 [2022-10-17 10:30:10,713 INFO L226 Difference]: Without dead ends: 429 [2022-10-17 10:30:10,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=627, Invalid=2235, Unknown=0, NotChecked=0, Total=2862 [2022-10-17 10:30:10,717 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 125 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:10,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 408 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:30:10,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-10-17 10:30:10,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 175. [2022-10-17 10:30:10,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 141 states have (on average 1.2056737588652482) internal successors, (170), 143 states have internal predecessors, (170), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2022-10-17 10:30:10,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2022-10-17 10:30:10,748 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 55 [2022-10-17 10:30:10,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:10,749 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2022-10-17 10:30:10,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 10:30:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2022-10-17 10:30:10,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-17 10:30:10,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:10,750 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:10,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:10,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-17 10:30:10,976 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:10,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1328814042, now seen corresponding path program 1 times [2022-10-17 10:30:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:10,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065817550] [2022-10-17 10:30:10,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:10,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:11,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:11,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:11,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:11,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-17 10:30:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 14 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-17 10:30:11,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:11,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065817550] [2022-10-17 10:30:11,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065817550] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:11,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769578677] [2022-10-17 10:30:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:11,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:11,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:11,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:11,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-17 10:30:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:11,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:30:11,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:11,275 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-17 10:30:11,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-17 10:30:11,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769578677] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:11,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:11,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 14 [2022-10-17 10:30:11,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936453973] [2022-10-17 10:30:11,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:11,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-17 10:30:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-17 10:30:11,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:30:11,379 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-10-17 10:30:12,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:12,036 INFO L93 Difference]: Finished difference Result 362 states and 491 transitions. [2022-10-17 10:30:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-17 10:30:12,037 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 61 [2022-10-17 10:30:12,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:12,040 INFO L225 Difference]: With dead ends: 362 [2022-10-17 10:30:12,040 INFO L226 Difference]: Without dead ends: 277 [2022-10-17 10:30:12,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 125 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2022-10-17 10:30:12,043 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 205 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:12,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 210 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:30:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-10-17 10:30:12,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2022-10-17 10:30:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 189 states have (on average 1.2275132275132274) internal successors, (232), 193 states have internal predecessors, (232), 29 states have call successors, (29), 10 states have call predecessors, (29), 13 states have return successors, (36), 32 states have call predecessors, (36), 29 states have call successors, (36) [2022-10-17 10:30:12,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 297 transitions. [2022-10-17 10:30:12,071 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 297 transitions. Word has length 61 [2022-10-17 10:30:12,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:12,072 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 297 transitions. [2022-10-17 10:30:12,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-10-17 10:30:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 297 transitions. [2022-10-17 10:30:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 10:30:12,073 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:12,074 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:12,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:12,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-17 10:30:12,288 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:12,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:12,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1961639078, now seen corresponding path program 1 times [2022-10-17 10:30:12,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:12,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295235064] [2022-10-17 10:30:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:12,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:30:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:30:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-10-17 10:30:12,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:12,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295235064] [2022-10-17 10:30:12,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295235064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:12,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:12,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:30:12,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482133444] [2022-10-17 10:30:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:12,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:30:12,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:12,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:30:12,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:12,388 INFO L87 Difference]: Start difference. First operand 236 states and 297 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:30:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:12,451 INFO L93 Difference]: Finished difference Result 331 states and 457 transitions. [2022-10-17 10:30:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:30:12,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2022-10-17 10:30:12,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:12,455 INFO L225 Difference]: With dead ends: 331 [2022-10-17 10:30:12,455 INFO L226 Difference]: Without dead ends: 330 [2022-10-17 10:30:12,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:30:12,457 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:12,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 147 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:12,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-10-17 10:30:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 288. [2022-10-17 10:30:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 229 states have (on average 1.2008733624454149) internal successors, (275), 231 states have internal predecessors, (275), 34 states have call successors, (34), 10 states have call predecessors, (34), 20 states have return successors, (76), 46 states have call predecessors, (76), 34 states have call successors, (76) [2022-10-17 10:30:12,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 385 transitions. [2022-10-17 10:30:12,489 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 385 transitions. Word has length 64 [2022-10-17 10:30:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:12,490 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 385 transitions. [2022-10-17 10:30:12,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:30:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 385 transitions. [2022-10-17 10:30:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-17 10:30:12,491 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:12,492 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:12,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-17 10:30:12,492 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:12,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash -681269214, now seen corresponding path program 1 times [2022-10-17 10:30:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:12,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067116767] [2022-10-17 10:30:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:12,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:30:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:30:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-17 10:30:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:12,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067116767] [2022-10-17 10:30:12,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067116767] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:12,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:12,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:30:12,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182278980] [2022-10-17 10:30:12,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:12,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:30:12,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:12,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:30:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:30:12,652 INFO L87 Difference]: Start difference. First operand 288 states and 385 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:30:12,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:12,725 INFO L93 Difference]: Finished difference Result 451 states and 647 transitions. [2022-10-17 10:30:12,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:30:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 65 [2022-10-17 10:30:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:12,729 INFO L225 Difference]: With dead ends: 451 [2022-10-17 10:30:12,729 INFO L226 Difference]: Without dead ends: 261 [2022-10-17 10:30:12,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:30:12,732 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:12,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 96 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:12,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-10-17 10:30:12,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-10-17 10:30:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 205 states have (on average 1.1853658536585365) internal successors, (243), 213 states have internal predecessors, (243), 34 states have call successors, (34), 10 states have call predecessors, (34), 17 states have return successors, (59), 37 states have call predecessors, (59), 34 states have call successors, (59) [2022-10-17 10:30:12,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 336 transitions. [2022-10-17 10:30:12,763 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 336 transitions. Word has length 65 [2022-10-17 10:30:12,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:12,763 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 336 transitions. [2022-10-17 10:30:12,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:30:12,764 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 336 transitions. [2022-10-17 10:30:12,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:30:12,766 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:12,766 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:12,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-17 10:30:12,767 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:12,767 INFO L85 PathProgramCache]: Analyzing trace with hash 505993054, now seen corresponding path program 2 times [2022-10-17 10:30:12,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:12,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32954094] [2022-10-17 10:30:12,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:12,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:30:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:30:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-10-17 10:30:12,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:12,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32954094] [2022-10-17 10:30:12,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32954094] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:12,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38244831] [2022-10-17 10:30:12,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:30:12,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:12,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:12,877 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:12,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-17 10:30:12,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:30:12,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:12,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:30:12,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-10-17 10:30:12,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:30:12,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38244831] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:12,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:30:12,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-10-17 10:30:12,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523510912] [2022-10-17 10:30:12,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:12,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:30:12,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:12,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:30:12,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:30:12,991 INFO L87 Difference]: Start difference. First operand 261 states and 336 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:30:13,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:13,046 INFO L93 Difference]: Finished difference Result 280 states and 363 transitions. [2022-10-17 10:30:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:30:13,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66 [2022-10-17 10:30:13,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:13,050 INFO L225 Difference]: With dead ends: 280 [2022-10-17 10:30:13,050 INFO L226 Difference]: Without dead ends: 279 [2022-10-17 10:30:13,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:30:13,052 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:13,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 106 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:13,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-10-17 10:30:13,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 276. [2022-10-17 10:30:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 220 states have (on average 1.1954545454545455) internal successors, (263), 223 states have internal predecessors, (263), 34 states have call successors, (34), 10 states have call predecessors, (34), 17 states have return successors, (59), 42 states have call predecessors, (59), 34 states have call successors, (59) [2022-10-17 10:30:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 356 transitions. [2022-10-17 10:30:13,091 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 356 transitions. Word has length 66 [2022-10-17 10:30:13,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:13,092 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 356 transitions. [2022-10-17 10:30:13,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:30:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 356 transitions. [2022-10-17 10:30:13,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-17 10:30:13,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:13,095 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:13,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:13,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:13,308 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:13,309 INFO L85 PathProgramCache]: Analyzing trace with hash 924442603, now seen corresponding path program 1 times [2022-10-17 10:30:13,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:13,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764769853] [2022-10-17 10:30:13,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:13,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-17 10:30:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-17 10:30:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:30:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 73 proven. 43 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-10-17 10:30:13,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:13,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764769853] [2022-10-17 10:30:13,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764769853] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:13,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840616277] [2022-10-17 10:30:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:13,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:13,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:13,472 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:13,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-17 10:30:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:30:13,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 10:30:13,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:30:13,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840616277] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:13,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:30:13,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2022-10-17 10:30:13,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809214607] [2022-10-17 10:30:13,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:13,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:30:13,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:13,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:30:13,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:30:13,597 INFO L87 Difference]: Start difference. First operand 276 states and 356 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-17 10:30:13,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:13,761 INFO L93 Difference]: Finished difference Result 545 states and 750 transitions. [2022-10-17 10:30:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:30:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 101 [2022-10-17 10:30:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:13,766 INFO L225 Difference]: With dead ends: 545 [2022-10-17 10:30:13,766 INFO L226 Difference]: Without dead ends: 364 [2022-10-17 10:30:13,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:30:13,769 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 43 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:13,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 122 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:13,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-10-17 10:30:13,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 361. [2022-10-17 10:30:13,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 291 states have (on average 1.2096219931271477) internal successors, (352), 284 states have internal predecessors, (352), 44 states have call successors, (44), 10 states have call predecessors, (44), 21 states have return successors, (102), 66 states have call predecessors, (102), 44 states have call successors, (102) [2022-10-17 10:30:13,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 498 transitions. [2022-10-17 10:30:13,809 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 498 transitions. Word has length 101 [2022-10-17 10:30:13,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:13,810 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 498 transitions. [2022-10-17 10:30:13,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-17 10:30:13,810 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 498 transitions. [2022-10-17 10:30:13,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-17 10:30:13,812 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:13,812 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:13,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:14,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:14,032 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:14,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:14,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1778803619, now seen corresponding path program 1 times [2022-10-17 10:30:14,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:14,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994311766] [2022-10-17 10:30:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:14,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:30:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:30:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-10-17 10:30:14,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:14,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994311766] [2022-10-17 10:30:14,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994311766] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:14,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758352024] [2022-10-17 10:30:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:14,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:14,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:14,281 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:14,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-17 10:30:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:30:14,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-10-17 10:30:14,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-10-17 10:30:14,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758352024] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:14,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:14,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 12 [2022-10-17 10:30:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490319582] [2022-10-17 10:30:14,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:14,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:30:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:14,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:30:14,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:30:14,591 INFO L87 Difference]: Start difference. First operand 361 states and 498 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-17 10:30:14,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:14,831 INFO L93 Difference]: Finished difference Result 608 states and 871 transitions. [2022-10-17 10:30:14,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:30:14,832 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 85 [2022-10-17 10:30:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:14,836 INFO L225 Difference]: With dead ends: 608 [2022-10-17 10:30:14,836 INFO L226 Difference]: Without dead ends: 339 [2022-10-17 10:30:14,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 176 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:30:14,845 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 113 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:14,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 150 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:30:14,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-10-17 10:30:14,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 330. [2022-10-17 10:30:14,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 266 states have (on average 1.1541353383458646) internal successors, (307), 264 states have internal predecessors, (307), 40 states have call successors, (40), 16 states have call predecessors, (40), 20 states have return successors, (57), 49 states have call predecessors, (57), 40 states have call successors, (57) [2022-10-17 10:30:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 404 transitions. [2022-10-17 10:30:14,883 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 404 transitions. Word has length 85 [2022-10-17 10:30:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:14,884 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 404 transitions. [2022-10-17 10:30:14,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-17 10:30:14,884 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 404 transitions. [2022-10-17 10:30:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-17 10:30:14,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:14,886 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:14,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:15,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:15,106 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:15,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:15,106 INFO L85 PathProgramCache]: Analyzing trace with hash 804951081, now seen corresponding path program 2 times [2022-10-17 10:30:15,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:15,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983137862] [2022-10-17 10:30:15,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:15,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:30:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:30:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 27 proven. 41 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-10-17 10:30:15,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:15,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983137862] [2022-10-17 10:30:15,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983137862] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:15,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019225379] [2022-10-17 10:30:15,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:30:15,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:15,362 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:15,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-17 10:30:15,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:30:15,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:15,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:30:15,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-10-17 10:30:15,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:30:15,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019225379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:15,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:30:15,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2022-10-17 10:30:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216446902] [2022-10-17 10:30:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:15,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:30:15,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:15,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:30:15,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:30:15,496 INFO L87 Difference]: Start difference. First operand 330 states and 404 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-17 10:30:15,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:15,559 INFO L93 Difference]: Finished difference Result 331 states and 404 transitions. [2022-10-17 10:30:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:30:15,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-10-17 10:30:15,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:15,564 INFO L225 Difference]: With dead ends: 331 [2022-10-17 10:30:15,564 INFO L226 Difference]: Without dead ends: 330 [2022-10-17 10:30:15,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:30:15,566 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:15,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 146 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-10-17 10:30:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 286. [2022-10-17 10:30:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 230 states have (on average 1.1434782608695653) internal successors, (263), 234 states have internal predecessors, (263), 33 states have call successors, (33), 16 states have call predecessors, (33), 19 states have return successors, (44), 35 states have call predecessors, (44), 33 states have call successors, (44) [2022-10-17 10:30:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 340 transitions. [2022-10-17 10:30:15,599 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 340 transitions. Word has length 86 [2022-10-17 10:30:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:15,600 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 340 transitions. [2022-10-17 10:30:15,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-17 10:30:15,601 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 340 transitions. [2022-10-17 10:30:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-17 10:30:15,604 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:15,604 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:15,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:15,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-17 10:30:15,827 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -793317901, now seen corresponding path program 3 times [2022-10-17 10:30:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:15,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546790639] [2022-10-17 10:30:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:30:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-17 10:30:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:30:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-17 10:30:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 40 proven. 55 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-10-17 10:30:16,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:16,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546790639] [2022-10-17 10:30:16,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546790639] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:16,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743385565] [2022-10-17 10:30:16,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:30:16,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:16,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:16,158 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:16,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-17 10:30:16,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-17 10:30:16,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:16,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-17 10:30:16,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 159 proven. 32 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-17 10:30:16,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 37 proven. 50 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-10-17 10:30:16,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743385565] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:16,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:16,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 30 [2022-10-17 10:30:16,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414621750] [2022-10-17 10:30:16,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:16,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-17 10:30:16,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:16,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-17 10:30:16,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2022-10-17 10:30:16,876 INFO L87 Difference]: Start difference. First operand 286 states and 340 transitions. Second operand has 30 states, 30 states have (on average 3.5) internal successors, (105), 28 states have internal predecessors, (105), 13 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2022-10-17 10:30:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:18,212 INFO L93 Difference]: Finished difference Result 486 states and 581 transitions. [2022-10-17 10:30:18,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-17 10:30:18,212 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 28 states have internal predecessors, (105), 13 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) Word has length 116 [2022-10-17 10:30:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:18,216 INFO L225 Difference]: With dead ends: 486 [2022-10-17 10:30:18,216 INFO L226 Difference]: Without dead ends: 298 [2022-10-17 10:30:18,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 233 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=506, Invalid=3034, Unknown=0, NotChecked=0, Total=3540 [2022-10-17 10:30:18,220 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 246 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:18,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 899 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:30:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-10-17 10:30:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 283. [2022-10-17 10:30:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 229 states have (on average 1.1266375545851528) internal successors, (258), 232 states have internal predecessors, (258), 31 states have call successors, (31), 16 states have call predecessors, (31), 19 states have return successors, (40), 34 states have call predecessors, (40), 31 states have call successors, (40) [2022-10-17 10:30:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 329 transitions. [2022-10-17 10:30:18,267 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 329 transitions. Word has length 116 [2022-10-17 10:30:18,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:18,267 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 329 transitions. [2022-10-17 10:30:18,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 28 states have internal predecessors, (105), 13 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2022-10-17 10:30:18,268 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 329 transitions. [2022-10-17 10:30:18,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-17 10:30:18,272 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:18,272 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:18,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:18,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:18,489 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:18,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:18,489 INFO L85 PathProgramCache]: Analyzing trace with hash 895586552, now seen corresponding path program 3 times [2022-10-17 10:30:18,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:18,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729967494] [2022-10-17 10:30:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:18,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:30:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:30:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-17 10:30:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:30:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:30:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:30:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 10:30:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-17 10:30:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 10:30:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-10-17 10:30:19,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:19,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729967494] [2022-10-17 10:30:19,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729967494] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:19,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583625419] [2022-10-17 10:30:19,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:30:19,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:19,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:19,170 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:19,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-17 10:30:19,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-17 10:30:19,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:19,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-17 10:30:19,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-10-17 10:30:19,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-10-17 10:30:20,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583625419] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:20,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:20,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-10-17 10:30:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479994697] [2022-10-17 10:30:20,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:20,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-17 10:30:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:20,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-17 10:30:20,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-10-17 10:30:20,068 INFO L87 Difference]: Start difference. First operand 283 states and 329 transitions. Second operand has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-17 10:30:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:20,884 INFO L93 Difference]: Finished difference Result 747 states and 906 transitions. [2022-10-17 10:30:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-17 10:30:20,885 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 114 [2022-10-17 10:30:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:20,892 INFO L225 Difference]: With dead ends: 747 [2022-10-17 10:30:20,892 INFO L226 Difference]: Without dead ends: 746 [2022-10-17 10:30:20,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-10-17 10:30:20,896 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 325 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:20,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 383 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:30:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-10-17 10:30:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 355. [2022-10-17 10:30:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 289 states have (on average 1.1418685121107266) internal successors, (330), 292 states have internal predecessors, (330), 43 states have call successors, (43), 16 states have call predecessors, (43), 19 states have return successors, (52), 46 states have call predecessors, (52), 43 states have call successors, (52) [2022-10-17 10:30:20,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 425 transitions. [2022-10-17 10:30:20,950 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 425 transitions. Word has length 114 [2022-10-17 10:30:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:20,951 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 425 transitions. [2022-10-17 10:30:20,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-17 10:30:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 425 transitions. [2022-10-17 10:30:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-17 10:30:20,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:20,955 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:20,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-10-17 10:30:21,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-17 10:30:21,172 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:21,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:21,172 INFO L85 PathProgramCache]: Analyzing trace with hash -999556663, now seen corresponding path program 2 times [2022-10-17 10:30:21,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:21,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056069985] [2022-10-17 10:30:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:21,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:30:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:30:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:30:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:30:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-17 10:30:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-10-17 10:30:21,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:21,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056069985] [2022-10-17 10:30:21,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056069985] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:21,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944017638] [2022-10-17 10:30:21,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:30:21,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:21,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:21,508 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:21,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-17 10:30:21,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:30:21,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:21,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 10:30:21,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-10-17 10:30:21,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-10-17 10:30:21,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944017638] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:21,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:21,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 14 [2022-10-17 10:30:21,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787980860] [2022-10-17 10:30:21,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:21,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-17 10:30:21,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:21,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-17 10:30:21,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:30:21,999 INFO L87 Difference]: Start difference. First operand 355 states and 425 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-10-17 10:30:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:22,384 INFO L93 Difference]: Finished difference Result 502 states and 602 transitions. [2022-10-17 10:30:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-17 10:30:22,385 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) Word has length 131 [2022-10-17 10:30:22,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:22,389 INFO L225 Difference]: With dead ends: 502 [2022-10-17 10:30:22,389 INFO L226 Difference]: Without dead ends: 358 [2022-10-17 10:30:22,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 276 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-10-17 10:30:22,392 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 139 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:22,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 182 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:30:22,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-10-17 10:30:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 350. [2022-10-17 10:30:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 285 states have (on average 1.1298245614035087) internal successors, (322), 288 states have internal predecessors, (322), 43 states have call successors, (43), 17 states have call predecessors, (43), 18 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2022-10-17 10:30:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 413 transitions. [2022-10-17 10:30:22,432 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 413 transitions. Word has length 131 [2022-10-17 10:30:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:22,433 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 413 transitions. [2022-10-17 10:30:22,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-10-17 10:30:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 413 transitions. [2022-10-17 10:30:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-17 10:30:22,436 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:22,437 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 9, 9, 9, 8, 8, 8, 8, 8, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:22,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:22,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-17 10:30:22,652 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1094447814, now seen corresponding path program 1 times [2022-10-17 10:30:22,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:22,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409034678] [2022-10-17 10:30:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:22,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:30:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:30:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:30:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:30:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:30:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-17 10:30:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-17 10:30:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-17 10:30:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,844 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 203 proven. 35 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-10-17 10:30:22,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:22,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409034678] [2022-10-17 10:30:22,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409034678] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:22,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820728382] [2022-10-17 10:30:22,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:22,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:22,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:22,847 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:22,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-17 10:30:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:22,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:30:22,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:22,988 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 383 proven. 1 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-10-17 10:30:22,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 203 proven. 35 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-10-17 10:30:23,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820728382] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:23,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:23,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2022-10-17 10:30:23,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202837732] [2022-10-17 10:30:23,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:23,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:30:23,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:30:23,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:30:23,124 INFO L87 Difference]: Start difference. First operand 350 states and 413 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-17 10:30:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:23,218 INFO L93 Difference]: Finished difference Result 489 states and 576 transitions. [2022-10-17 10:30:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:30:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 163 [2022-10-17 10:30:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:23,222 INFO L225 Difference]: With dead ends: 489 [2022-10-17 10:30:23,223 INFO L226 Difference]: Without dead ends: 354 [2022-10-17 10:30:23,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 350 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:30:23,226 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:23,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 104 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:23,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-17 10:30:23,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 350. [2022-10-17 10:30:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 285 states have (on average 1.1298245614035087) internal successors, (322), 288 states have internal predecessors, (322), 43 states have call successors, (43), 17 states have call predecessors, (43), 18 states have return successors, (46), 44 states have call predecessors, (46), 43 states have call successors, (46) [2022-10-17 10:30:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 411 transitions. [2022-10-17 10:30:23,263 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 411 transitions. Word has length 163 [2022-10-17 10:30:23,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:23,263 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 411 transitions. [2022-10-17 10:30:23,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-17 10:30:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 411 transitions. [2022-10-17 10:30:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-10-17 10:30:23,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:23,269 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 10, 9, 9, 8, 8, 8, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:23,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:23,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-17 10:30:23,496 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:23,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:23,497 INFO L85 PathProgramCache]: Analyzing trace with hash -457737177, now seen corresponding path program 2 times [2022-10-17 10:30:23,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:23,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585846922] [2022-10-17 10:30:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:23,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:30:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:30:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:30:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:30:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:30:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 10:30:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-17 10:30:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-17 10:30:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 58 proven. 159 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2022-10-17 10:30:23,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:23,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585846922] [2022-10-17 10:30:23,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585846922] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:23,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705841474] [2022-10-17 10:30:23,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:30:23,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:23,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:23,861 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:23,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-17 10:30:23,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:30:23,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:23,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 10:30:23,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 387 proven. 10 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-10-17 10:30:24,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 275 proven. 70 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2022-10-17 10:30:24,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705841474] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:24,819 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:24,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 27 [2022-10-17 10:30:24,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734073205] [2022-10-17 10:30:24,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:24,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-17 10:30:24,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-17 10:30:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2022-10-17 10:30:24,823 INFO L87 Difference]: Start difference. First operand 350 states and 411 transitions. Second operand has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) [2022-10-17 10:30:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:26,027 INFO L93 Difference]: Finished difference Result 622 states and 740 transitions. [2022-10-17 10:30:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-17 10:30:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) Word has length 183 [2022-10-17 10:30:26,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:26,033 INFO L225 Difference]: With dead ends: 622 [2022-10-17 10:30:26,034 INFO L226 Difference]: Without dead ends: 512 [2022-10-17 10:30:26,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 376 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=1977, Unknown=0, NotChecked=0, Total=2256 [2022-10-17 10:30:26,037 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 303 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:26,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 394 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-17 10:30:26,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-10-17 10:30:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 466. [2022-10-17 10:30:26,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 380 states have (on average 1.1289473684210527) internal successors, (429), 382 states have internal predecessors, (429), 56 states have call successors, (56), 22 states have call predecessors, (56), 26 states have return successors, (77), 61 states have call predecessors, (77), 56 states have call successors, (77) [2022-10-17 10:30:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 562 transitions. [2022-10-17 10:30:26,095 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 562 transitions. Word has length 183 [2022-10-17 10:30:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:26,095 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 562 transitions. [2022-10-17 10:30:26,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) [2022-10-17 10:30:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 562 transitions. [2022-10-17 10:30:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-10-17 10:30:26,100 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:26,101 INFO L195 NwaCegarLoop]: trace histogram [20, 18, 13, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:26,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:26,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-17 10:30:26,316 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:26,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:26,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1250905414, now seen corresponding path program 3 times [2022-10-17 10:30:26,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:26,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510102070] [2022-10-17 10:30:26,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:26,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:30:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:30:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:30:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:30:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:30:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 10:30:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-17 10:30:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:30:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-17 10:30:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 222 proven. 14 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2022-10-17 10:30:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:26,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510102070] [2022-10-17 10:30:26,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510102070] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:26,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135917578] [2022-10-17 10:30:26,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:30:26,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:26,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:26,669 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:26,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-17 10:30:26,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-17 10:30:26,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:26,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:30:26,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:26,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 132 proven. 12 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-10-17 10:30:26,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 132 proven. 12 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-10-17 10:30:27,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135917578] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:27,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:27,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 16 [2022-10-17 10:30:27,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776985836] [2022-10-17 10:30:27,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:27,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-17 10:30:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:27,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-17 10:30:27,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:30:27,153 INFO L87 Difference]: Start difference. First operand 466 states and 562 transitions. Second operand has 17 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 11 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2022-10-17 10:30:27,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:27,511 INFO L93 Difference]: Finished difference Result 651 states and 802 transitions. [2022-10-17 10:30:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:30:27,512 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 11 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 211 [2022-10-17 10:30:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:27,518 INFO L225 Difference]: With dead ends: 651 [2022-10-17 10:30:27,518 INFO L226 Difference]: Without dead ends: 634 [2022-10-17 10:30:27,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 453 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2022-10-17 10:30:27,520 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 108 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:27,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 281 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:30:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-10-17 10:30:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 567. [2022-10-17 10:30:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 457 states have (on average 1.1378555798687089) internal successors, (520), 461 states have internal predecessors, (520), 69 states have call successors, (69), 28 states have call predecessors, (69), 37 states have return successors, (97), 77 states have call predecessors, (97), 69 states have call successors, (97) [2022-10-17 10:30:27,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 686 transitions. [2022-10-17 10:30:27,591 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 686 transitions. Word has length 211 [2022-10-17 10:30:27,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:27,595 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 686 transitions. [2022-10-17 10:30:27,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 11 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2022-10-17 10:30:27,595 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 686 transitions. [2022-10-17 10:30:27,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-10-17 10:30:27,600 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:27,600 INFO L195 NwaCegarLoop]: trace histogram [21, 18, 14, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:27,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:27,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-17 10:30:27,816 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-17 10:30:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash -564713191, now seen corresponding path program 4 times [2022-10-17 10:30:27,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:30:27,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843446907] [2022-10-17 10:30:27,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:27,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:30:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:30:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:30:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:30:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:30:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:30:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:30:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 10:30:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-17 10:30:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:30:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:30:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:30:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-17 10:30:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 258 proven. 106 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-10-17 10:30:28,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:30:28,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843446907] [2022-10-17 10:30:28,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843446907] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:30:28,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848378631] [2022-10-17 10:30:28,329 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 10:30:28,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:30:28,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:30:28,330 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:30:28,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80bc8cdf-37a3-4b6a-a357-d4e2f439de74/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-17 10:30:28,460 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 10:30:28,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:30:28,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:30:28,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2022-10-17 10:30:28,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:30:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 145 proven. 6 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-10-17 10:30:28,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848378631] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:30:28,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:30:28,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 18 [2022-10-17 10:30:28,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743661553] [2022-10-17 10:30:28,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:30:28,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-17 10:30:28,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:30:28,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-17 10:30:28,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-10-17 10:30:28,692 INFO L87 Difference]: Start difference. First operand 567 states and 686 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 15 states have internal predecessors, (86), 8 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10)