./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:34:36,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:34:36,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:34:36,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:34:36,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:34:36,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:34:36,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:34:36,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:34:36,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:34:36,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:34:36,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:34:36,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:34:36,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:34:36,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:34:36,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:34:36,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:34:36,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:34:36,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:34:36,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:34:36,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:34:36,592 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:34:36,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:34:36,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:34:36,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:34:36,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:34:36,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:34:36,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:34:36,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:34:36,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:34:36,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:34:36,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:34:36,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:34:36,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:34:36,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:34:36,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:34:36,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:34:36,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:34:36,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:34:36,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:34:36,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:34:36,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:34:36,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:34:36,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-22 00:34:36,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:34:36,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:34:36,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:34:36,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:34:36,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:34:36,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:34:36,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:34:36,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:34:36,657 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:34:36,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:34:36,658 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:34:36,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:34:36,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:34:36,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:34:36,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:34:36,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:34:36,659 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:34:36,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:34:36,659 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:34:36,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:34:36,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:34:36,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:34:36,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:34:36,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:34:36,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:34:36,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:34:36,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:34:36,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:34:36,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:34:36,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:34:36,662 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 [2022-07-22 00:34:37,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:34:37,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:34:37,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:34:37,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:34:37,043 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:34:37,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2022-07-22 00:34:37,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69ddc466/58902c0491024d58adb04069e4cb61a0/FLAGb01aa0641 [2022-07-22 00:34:37,533 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:34:37,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2022-07-22 00:34:37,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69ddc466/58902c0491024d58adb04069e4cb61a0/FLAGb01aa0641 [2022-07-22 00:34:37,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69ddc466/58902c0491024d58adb04069e4cb61a0 [2022-07-22 00:34:37,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:34:37,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:34:37,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:34:37,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:34:37,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:34:37,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:37" (1/1) ... [2022-07-22 00:34:37,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e76d136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:37, skipping insertion in model container [2022-07-22 00:34:37,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:37" (1/1) ... [2022-07-22 00:34:37,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:34:37,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:34:38,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:34:38,071 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:34:38,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:34:38,098 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:34:38,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38 WrapperNode [2022-07-22 00:34:38,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:34:38,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:34:38,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:34:38,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:34:38,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,123 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-07-22 00:34:38,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:34:38,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:34:38,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:34:38,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:34:38,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:34:38,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:34:38,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:34:38,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:34:38,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (1/1) ... [2022-07-22 00:34:38,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:34:38,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:38,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 00:34:38,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 00:34:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:34:38,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:34:38,274 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:34:38,275 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:34:38,454 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:34:38,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:34:38,460 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 00:34:38,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:38 BoogieIcfgContainer [2022-07-22 00:34:38,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:34:38,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:34:38,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:34:38,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:34:38,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:34:37" (1/3) ... [2022-07-22 00:34:38,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d84efe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:34:38, skipping insertion in model container [2022-07-22 00:34:38,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:38" (2/3) ... [2022-07-22 00:34:38,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d84efe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:34:38, skipping insertion in model container [2022-07-22 00:34:38,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:38" (3/3) ... [2022-07-22 00:34:38,485 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2022-07-22 00:34:38,497 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:34:38,498 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-22 00:34:38,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:34:38,594 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@548ed61a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48cc6511 [2022-07-22 00:34:38,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-22 00:34:38,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:38,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-22 00:34:38,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:38,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-22 00:34:38,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:38,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:38,626 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-07-22 00:34:38,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:38,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37649062] [2022-07-22 00:34:38,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:38,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:38,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:38,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:38,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37649062] [2022-07-22 00:34:38,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37649062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:34:38,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:34:38,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:34:38,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122305220] [2022-07-22 00:34:38,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:34:38,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:34:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:34:38,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:38,807 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:38,836 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2022-07-22 00:34:38,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:34:38,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-07-22 00:34:38,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:38,844 INFO L225 Difference]: With dead ends: 44 [2022-07-22 00:34:38,844 INFO L226 Difference]: Without dead ends: 31 [2022-07-22 00:34:38,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:38,850 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:38,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-22 00:34:38,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-07-22 00:34:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-07-22 00:34:38,886 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 4 [2022-07-22 00:34:38,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:38,887 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-07-22 00:34:38,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-07-22 00:34:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-22 00:34:38,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:38,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-22 00:34:38,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:34:38,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:38,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-07-22 00:34:38,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:38,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914269576] [2022-07-22 00:34:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:38,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:38,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:38,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914269576] [2022-07-22 00:34:38,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914269576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:34:38,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:34:38,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:34:38,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490934038] [2022-07-22 00:34:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:34:38,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:34:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:38,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:34:38,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:38,914 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:38,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:38,928 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-07-22 00:34:38,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:34:38,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-22 00:34:38,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:38,930 INFO L225 Difference]: With dead ends: 30 [2022-07-22 00:34:38,930 INFO L226 Difference]: Without dead ends: 29 [2022-07-22 00:34:38,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:38,932 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:38,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-22 00:34:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-22 00:34:38,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.7) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:38,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-07-22 00:34:38,938 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 5 [2022-07-22 00:34:38,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:38,938 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-07-22 00:34:38,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-07-22 00:34:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:34:38,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:38,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:34:38,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:34:38,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:38,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash 294944169, now seen corresponding path program 1 times [2022-07-22 00:34:38,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:38,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100971013] [2022-07-22 00:34:38,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:38,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:38,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:38,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:38,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100971013] [2022-07-22 00:34:38,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100971013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:34:38,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:34:38,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:34:38,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706946141] [2022-07-22 00:34:38,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:34:38,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:34:38,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:38,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:34:38,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:38,990 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:39,013 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2022-07-22 00:34:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:34:39,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 00:34:39,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:39,015 INFO L225 Difference]: With dead ends: 52 [2022-07-22 00:34:39,015 INFO L226 Difference]: Without dead ends: 50 [2022-07-22 00:34:39,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:39,017 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:39,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:39,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-22 00:34:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2022-07-22 00:34:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2022-07-22 00:34:39,024 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 8 [2022-07-22 00:34:39,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:39,025 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-07-22 00:34:39,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,025 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2022-07-22 00:34:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:34:39,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:39,026 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-07-22 00:34:39,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 00:34:39,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:39,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:39,027 INFO L85 PathProgramCache]: Analyzing trace with hash 294981328, now seen corresponding path program 1 times [2022-07-22 00:34:39,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:39,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167580879] [2022-07-22 00:34:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:39,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:39,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167580879] [2022-07-22 00:34:39,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167580879] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:39,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250096531] [2022-07-22 00:34:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:39,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:39,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:39,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:34:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:39,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:34:39,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250096531] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:39,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:39,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:34:39,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551013401] [2022-07-22 00:34:39,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:39,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:34:39,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:39,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:34:39,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:39,176 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:39,220 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2022-07-22 00:34:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:34:39,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 00:34:39,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:39,223 INFO L225 Difference]: With dead ends: 147 [2022-07-22 00:34:39,223 INFO L226 Difference]: Without dead ends: 146 [2022-07-22 00:34:39,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:39,225 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 104 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:39,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-07-22 00:34:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 124. [2022-07-22 00:34:39,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 115 states have (on average 1.7130434782608697) internal successors, (197), 123 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 197 transitions. [2022-07-22 00:34:39,258 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 197 transitions. Word has length 8 [2022-07-22 00:34:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:39,258 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 197 transitions. [2022-07-22 00:34:39,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 197 transitions. [2022-07-22 00:34:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 00:34:39,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:39,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:34:39,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 00:34:39,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:39,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:39,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:39,480 INFO L85 PathProgramCache]: Analyzing trace with hash 553334702, now seen corresponding path program 1 times [2022-07-22 00:34:39,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:39,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411305550] [2022-07-22 00:34:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:39,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:39,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411305550] [2022-07-22 00:34:39,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411305550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:34:39,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:34:39,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:34:39,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131851868] [2022-07-22 00:34:39,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:34:39,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:34:39,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:39,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:34:39,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:39,513 INFO L87 Difference]: Start difference. First operand 124 states and 197 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:39,543 INFO L93 Difference]: Finished difference Result 213 states and 338 transitions. [2022-07-22 00:34:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:34:39,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-22 00:34:39,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:39,546 INFO L225 Difference]: With dead ends: 213 [2022-07-22 00:34:39,546 INFO L226 Difference]: Without dead ends: 211 [2022-07-22 00:34:39,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:39,548 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:39,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:39,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-07-22 00:34:39,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2022-07-22 00:34:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 197 states have (on average 1.6598984771573604) internal successors, (327), 205 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 327 transitions. [2022-07-22 00:34:39,570 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 327 transitions. Word has length 9 [2022-07-22 00:34:39,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:39,570 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 327 transitions. [2022-07-22 00:34:39,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 327 transitions. [2022-07-22 00:34:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-22 00:34:39,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:39,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:34:39,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 00:34:39,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:39,573 INFO L85 PathProgramCache]: Analyzing trace with hash -26301678, now seen corresponding path program 1 times [2022-07-22 00:34:39,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:39,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907681697] [2022-07-22 00:34:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:39,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:39,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907681697] [2022-07-22 00:34:39,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907681697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:34:39,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:34:39,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:34:39,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49640959] [2022-07-22 00:34:39,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:34:39,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:34:39,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:39,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:34:39,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:39,598 INFO L87 Difference]: Start difference. First operand 206 states and 327 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:39,629 INFO L93 Difference]: Finished difference Result 346 states and 547 transitions. [2022-07-22 00:34:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:34:39,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-22 00:34:39,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:39,632 INFO L225 Difference]: With dead ends: 346 [2022-07-22 00:34:39,635 INFO L226 Difference]: Without dead ends: 344 [2022-07-22 00:34:39,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:39,636 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:39,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:39,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-07-22 00:34:39,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 331. [2022-07-22 00:34:39,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 322 states have (on average 1.5745341614906831) internal successors, (507), 330 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 507 transitions. [2022-07-22 00:34:39,664 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 507 transitions. Word has length 10 [2022-07-22 00:34:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:39,664 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 507 transitions. [2022-07-22 00:34:39,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 507 transitions. [2022-07-22 00:34:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 00:34:39,665 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:39,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:34:39,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 00:34:39,666 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:39,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:39,667 INFO L85 PathProgramCache]: Analyzing trace with hash -815351945, now seen corresponding path program 1 times [2022-07-22 00:34:39,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:39,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077765399] [2022-07-22 00:34:39,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:39,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:39,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077765399] [2022-07-22 00:34:39,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077765399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:34:39,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:34:39,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:34:39,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875548770] [2022-07-22 00:34:39,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:34:39,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:34:39,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:39,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:34:39,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:39,692 INFO L87 Difference]: Start difference. First operand 331 states and 507 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:39,753 INFO L93 Difference]: Finished difference Result 550 states and 841 transitions. [2022-07-22 00:34:39,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:34:39,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 00:34:39,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:39,756 INFO L225 Difference]: With dead ends: 550 [2022-07-22 00:34:39,756 INFO L226 Difference]: Without dead ends: 548 [2022-07-22 00:34:39,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:34:39,758 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:39,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-22 00:34:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 543. [2022-07-22 00:34:39,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 534 states have (on average 1.5149812734082397) internal successors, (809), 542 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 809 transitions. [2022-07-22 00:34:39,787 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 809 transitions. Word has length 11 [2022-07-22 00:34:39,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:39,788 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 809 transitions. [2022-07-22 00:34:39,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:39,788 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 809 transitions. [2022-07-22 00:34:39,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 00:34:39,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:39,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-22 00:34:39,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 00:34:39,790 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:39,791 INFO L85 PathProgramCache]: Analyzing trace with hash -329510763, now seen corresponding path program 1 times [2022-07-22 00:34:39,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:39,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258436713] [2022-07-22 00:34:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:39,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:39,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:39,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258436713] [2022-07-22 00:34:39,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258436713] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:39,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900924974] [2022-07-22 00:34:39,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:39,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:39,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:39,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:39,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:34:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:39,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:34:39,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:39,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900924974] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:39,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:39,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:34:39,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538717515] [2022-07-22 00:34:39,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:39,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:34:39,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:39,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:34:39,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:39,963 INFO L87 Difference]: Start difference. First operand 543 states and 809 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:40,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:40,038 INFO L93 Difference]: Finished difference Result 1047 states and 1608 transitions. [2022-07-22 00:34:40,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:34:40,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-22 00:34:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:40,051 INFO L225 Difference]: With dead ends: 1047 [2022-07-22 00:34:40,051 INFO L226 Difference]: Without dead ends: 1045 [2022-07-22 00:34:40,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:40,056 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 118 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:40,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 116 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:34:40,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-07-22 00:34:40,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 904. [2022-07-22 00:34:40,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 895 states have (on average 1.5273743016759778) internal successors, (1367), 903 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1367 transitions. [2022-07-22 00:34:40,102 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1367 transitions. Word has length 15 [2022-07-22 00:34:40,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:40,103 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1367 transitions. [2022-07-22 00:34:40,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:40,103 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1367 transitions. [2022-07-22 00:34:40,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 00:34:40,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:40,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:34:40,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 00:34:40,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-22 00:34:40,316 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:40,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1722862724, now seen corresponding path program 1 times [2022-07-22 00:34:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:40,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356816370] [2022-07-22 00:34:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:40,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:40,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:40,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356816370] [2022-07-22 00:34:40,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356816370] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:40,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079489924] [2022-07-22 00:34:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:40,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:40,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:40,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:34:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:40,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:34:40,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:40,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:40,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079489924] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:40,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:40,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:34:40,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022450929] [2022-07-22 00:34:40,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:40,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:34:40,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:40,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:34:40,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:40,475 INFO L87 Difference]: Start difference. First operand 904 states and 1367 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:40,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:40,522 INFO L93 Difference]: Finished difference Result 1365 states and 2106 transitions. [2022-07-22 00:34:40,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:34:40,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-22 00:34:40,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:40,528 INFO L225 Difference]: With dead ends: 1365 [2022-07-22 00:34:40,529 INFO L226 Difference]: Without dead ends: 1363 [2022-07-22 00:34:40,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:40,531 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 84 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:40,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 71 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:40,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-07-22 00:34:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1061. [2022-07-22 00:34:40,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1053 states have (on average 1.5175688509021843) internal successors, (1598), 1060 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1598 transitions. [2022-07-22 00:34:40,572 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1598 transitions. Word has length 17 [2022-07-22 00:34:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:40,572 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1598 transitions. [2022-07-22 00:34:40,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1598 transitions. [2022-07-22 00:34:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 00:34:40,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:40,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-22 00:34:40,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 00:34:40,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:40,796 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1244341817, now seen corresponding path program 1 times [2022-07-22 00:34:40,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:40,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050523117] [2022-07-22 00:34:40,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:40,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:40,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:40,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050523117] [2022-07-22 00:34:40,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050523117] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:40,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019986985] [2022-07-22 00:34:40,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:40,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:40,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:40,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:40,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:34:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:40,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:34:40,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:40,900 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:40,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:40,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019986985] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:40,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:40,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:34:40,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869987713] [2022-07-22 00:34:40,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:40,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:34:40,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:40,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:34:40,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:40,948 INFO L87 Difference]: Start difference. First operand 1061 states and 1598 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:41,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:41,041 INFO L93 Difference]: Finished difference Result 2462 states and 3872 transitions. [2022-07-22 00:34:41,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:34:41,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 19 [2022-07-22 00:34:41,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:41,053 INFO L225 Difference]: With dead ends: 2462 [2022-07-22 00:34:41,053 INFO L226 Difference]: Without dead ends: 2460 [2022-07-22 00:34:41,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:41,056 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 121 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:41,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 111 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2022-07-22 00:34:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2130. [2022-07-22 00:34:41,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2122 states have (on average 1.5221489161168709) internal successors, (3230), 2129 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 3230 transitions. [2022-07-22 00:34:41,126 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 3230 transitions. Word has length 19 [2022-07-22 00:34:41,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:41,127 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 3230 transitions. [2022-07-22 00:34:41,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 3230 transitions. [2022-07-22 00:34:41,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-22 00:34:41,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:41,129 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1] [2022-07-22 00:34:41,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:41,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:41,347 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:41,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash -816359916, now seen corresponding path program 2 times [2022-07-22 00:34:41,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:41,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743029508] [2022-07-22 00:34:41,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:41,389 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-22 00:34:41,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:41,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743029508] [2022-07-22 00:34:41,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743029508] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:41,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935003695] [2022-07-22 00:34:41,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:34:41,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:41,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:41,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:41,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 00:34:41,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:41,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:34:41,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:41,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:34:41,458 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-22 00:34:41,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:41,489 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-22 00:34:41,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935003695] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:41,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:41,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:34:41,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339938732] [2022-07-22 00:34:41,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:41,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:34:41,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:41,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:34:41,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:41,492 INFO L87 Difference]: Start difference. First operand 2130 states and 3230 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:41,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:41,548 INFO L93 Difference]: Finished difference Result 2130 states and 3230 transitions. [2022-07-22 00:34:41,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:34:41,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-22 00:34:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:41,556 INFO L225 Difference]: With dead ends: 2130 [2022-07-22 00:34:41,556 INFO L226 Difference]: Without dead ends: 2129 [2022-07-22 00:34:41,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:34:41,558 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 51 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:41,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 55 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:41,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2022-07-22 00:34:41,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 1799. [2022-07-22 00:34:41,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1792 states have (on average 1.4871651785714286) internal successors, (2665), 1798 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2665 transitions. [2022-07-22 00:34:41,625 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2665 transitions. Word has length 20 [2022-07-22 00:34:41,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:41,626 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2665 transitions. [2022-07-22 00:34:41,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:41,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2665 transitions. [2022-07-22 00:34:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-22 00:34:41,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:41,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:34:41,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:41,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 00:34:41,843 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:41,844 INFO L85 PathProgramCache]: Analyzing trace with hash -333612156, now seen corresponding path program 1 times [2022-07-22 00:34:41,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:41,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957659084] [2022-07-22 00:34:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:41,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:41,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:41,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957659084] [2022-07-22 00:34:41,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957659084] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:41,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031587073] [2022-07-22 00:34:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:41,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:41,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:41,899 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:41,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:34:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:41,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:34:41,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:41,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:41,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031587073] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:41,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:41,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:34:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217912300] [2022-07-22 00:34:41,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:41,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:34:41,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:41,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:34:41,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:41,985 INFO L87 Difference]: Start difference. First operand 1799 states and 2665 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:42,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:42,071 INFO L93 Difference]: Finished difference Result 3111 states and 4689 transitions. [2022-07-22 00:34:42,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:34:42,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-22 00:34:42,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:42,086 INFO L225 Difference]: With dead ends: 3111 [2022-07-22 00:34:42,086 INFO L226 Difference]: Without dead ends: 3109 [2022-07-22 00:34:42,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:34:42,089 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 96 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:42,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 64 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:42,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2022-07-22 00:34:42,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2296. [2022-07-22 00:34:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2290 states have (on average 1.459825327510917) internal successors, (3343), 2295 states have internal predecessors, (3343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:42,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3343 transitions. [2022-07-22 00:34:42,165 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3343 transitions. Word has length 21 [2022-07-22 00:34:42,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:42,165 INFO L495 AbstractCegarLoop]: Abstraction has 2296 states and 3343 transitions. [2022-07-22 00:34:42,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:42,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3343 transitions. [2022-07-22 00:34:42,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 00:34:42,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:42,166 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2022-07-22 00:34:42,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:42,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:42,380 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:42,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:42,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1881216384, now seen corresponding path program 1 times [2022-07-22 00:34:42,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:42,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312028488] [2022-07-22 00:34:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:42,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:42,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312028488] [2022-07-22 00:34:42,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312028488] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:42,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579453326] [2022-07-22 00:34:42,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:42,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:42,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:42,430 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:42,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:34:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:42,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:34:42,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:42,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:42,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579453326] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:42,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:42,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 00:34:42,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427210645] [2022-07-22 00:34:42,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:42,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:34:42,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:42,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:34:42,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:34:42,575 INFO L87 Difference]: Start difference. First operand 2296 states and 3343 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:42,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:42,736 INFO L93 Difference]: Finished difference Result 6601 states and 9698 transitions. [2022-07-22 00:34:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 00:34:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-22 00:34:42,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:42,760 INFO L225 Difference]: With dead ends: 6601 [2022-07-22 00:34:42,761 INFO L226 Difference]: Without dead ends: 6600 [2022-07-22 00:34:42,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:34:42,765 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 173 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:42,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 145 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:34:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6600 states. [2022-07-22 00:34:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6600 to 5401. [2022-07-22 00:34:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 5395 states have (on average 1.4556070435588508) internal successors, (7853), 5400 states have internal predecessors, (7853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7853 transitions. [2022-07-22 00:34:42,935 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7853 transitions. Word has length 26 [2022-07-22 00:34:42,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:42,935 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 7853 transitions. [2022-07-22 00:34:42,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7853 transitions. [2022-07-22 00:34:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 00:34:42,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:42,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2022-07-22 00:34:42,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:43,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:43,167 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:43,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash -205460357, now seen corresponding path program 1 times [2022-07-22 00:34:43,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:43,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670034889] [2022-07-22 00:34:43,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:43,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:43,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:43,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670034889] [2022-07-22 00:34:43,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670034889] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:43,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262926146] [2022-07-22 00:34:43,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:43,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:43,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:43,222 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:43,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 00:34:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:43,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:34:43,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:43,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:43,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262926146] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:43,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:43,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 00:34:43,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114369238] [2022-07-22 00:34:43,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:43,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:34:43,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:43,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:34:43,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:34:43,358 INFO L87 Difference]: Start difference. First operand 5401 states and 7853 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:43,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:43,629 INFO L93 Difference]: Finished difference Result 15529 states and 22802 transitions. [2022-07-22 00:34:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 00:34:43,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-22 00:34:43,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:43,689 INFO L225 Difference]: With dead ends: 15529 [2022-07-22 00:34:43,715 INFO L226 Difference]: Without dead ends: 15528 [2022-07-22 00:34:43,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:34:43,726 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 172 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:43,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 145 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:34:43,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15528 states. [2022-07-22 00:34:44,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15528 to 12718. [2022-07-22 00:34:44,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12718 states, 12712 states have (on average 1.4511485210824417) internal successors, (18447), 12717 states have internal predecessors, (18447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12718 states to 12718 states and 18447 transitions. [2022-07-22 00:34:44,232 INFO L78 Accepts]: Start accepts. Automaton has 12718 states and 18447 transitions. Word has length 32 [2022-07-22 00:34:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:44,233 INFO L495 AbstractCegarLoop]: Abstraction has 12718 states and 18447 transitions. [2022-07-22 00:34:44,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:44,233 INFO L276 IsEmpty]: Start isEmpty. Operand 12718 states and 18447 transitions. [2022-07-22 00:34:44,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-22 00:34:44,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:44,234 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-07-22 00:34:44,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-22 00:34:44,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 00:34:44,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:44,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1919460695, now seen corresponding path program 2 times [2022-07-22 00:34:44,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:44,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44500259] [2022-07-22 00:34:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:44,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:44,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:44,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44500259] [2022-07-22 00:34:44,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44500259] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:44,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241923005] [2022-07-22 00:34:44,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:34:44,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:44,504 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:44,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 00:34:44,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:34:44,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:44,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:34:44,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:44,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:44,656 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:44,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241923005] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:44,656 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:44,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 00:34:44,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743809524] [2022-07-22 00:34:44,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:44,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:34:44,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:44,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:34:44,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:34:44,658 INFO L87 Difference]: Start difference. First operand 12718 states and 18447 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:45,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:45,396 INFO L93 Difference]: Finished difference Result 43313 states and 64320 transitions. [2022-07-22 00:34:45,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 00:34:45,397 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-07-22 00:34:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:45,516 INFO L225 Difference]: With dead ends: 43313 [2022-07-22 00:34:45,516 INFO L226 Difference]: Without dead ends: 43311 [2022-07-22 00:34:45,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:34:45,546 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 373 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:45,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 227 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:34:45,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43311 states. [2022-07-22 00:34:46,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43311 to 27376. [2022-07-22 00:34:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27376 states, 27370 states have (on average 1.4275118743149433) internal successors, (39071), 27375 states have internal predecessors, (39071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27376 states to 27376 states and 39071 transitions. [2022-07-22 00:34:46,532 INFO L78 Accepts]: Start accepts. Automaton has 27376 states and 39071 transitions. Word has length 36 [2022-07-22 00:34:46,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:46,532 INFO L495 AbstractCegarLoop]: Abstraction has 27376 states and 39071 transitions. [2022-07-22 00:34:46,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:46,533 INFO L276 IsEmpty]: Start isEmpty. Operand 27376 states and 39071 transitions. [2022-07-22 00:34:46,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-22 00:34:46,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:46,536 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-07-22 00:34:46,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:46,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-22 00:34:46,752 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:46,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2018802258, now seen corresponding path program 2 times [2022-07-22 00:34:46,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:46,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143854413] [2022-07-22 00:34:46,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:46,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:46,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:46,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143854413] [2022-07-22 00:34:46,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143854413] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:46,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664178466] [2022-07-22 00:34:46,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:34:46,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:46,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:46,829 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:46,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 00:34:46,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:34:46,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:46,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:34:46,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:46,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:47,025 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:47,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664178466] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:47,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:47,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 00:34:47,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506919265] [2022-07-22 00:34:47,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:47,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:34:47,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:47,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:34:47,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:34:47,027 INFO L87 Difference]: Start difference. First operand 27376 states and 39071 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:48,193 INFO L93 Difference]: Finished difference Result 93113 states and 136146 transitions. [2022-07-22 00:34:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 00:34:48,193 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 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 46 [2022-07-22 00:34:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:48,421 INFO L225 Difference]: With dead ends: 93113 [2022-07-22 00:34:48,421 INFO L226 Difference]: Without dead ends: 93111 [2022-07-22 00:34:48,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:34:48,456 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 352 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:48,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 227 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:34:48,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93111 states. [2022-07-22 00:34:50,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93111 to 58898. [2022-07-22 00:34:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58898 states, 58892 states have (on average 1.405063506078924) internal successors, (82747), 58897 states have internal predecessors, (82747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58898 states to 58898 states and 82747 transitions. [2022-07-22 00:34:50,202 INFO L78 Accepts]: Start accepts. Automaton has 58898 states and 82747 transitions. Word has length 46 [2022-07-22 00:34:50,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:50,203 INFO L495 AbstractCegarLoop]: Abstraction has 58898 states and 82747 transitions. [2022-07-22 00:34:50,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:50,204 INFO L276 IsEmpty]: Start isEmpty. Operand 58898 states and 82747 transitions. [2022-07-22 00:34:50,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-22 00:34:50,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:50,213 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-07-22 00:34:50,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-22 00:34:50,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 00:34:50,428 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:50,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:50,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1183604440, now seen corresponding path program 2 times [2022-07-22 00:34:50,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:50,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260786618] [2022-07-22 00:34:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:50,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260786618] [2022-07-22 00:34:50,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260786618] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640119737] [2022-07-22 00:34:50,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:34:50,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:50,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:50,512 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:50,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 00:34:50,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:34:50,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:50,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 00:34:50,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:50,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:50,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640119737] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:50,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:50,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-07-22 00:34:50,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133719727] [2022-07-22 00:34:50,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:50,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 00:34:50,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:50,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 00:34:50,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:34:50,773 INFO L87 Difference]: Start difference. First operand 58898 states and 82747 transitions. Second operand has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:53,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:53,517 INFO L93 Difference]: Finished difference Result 207477 states and 294185 transitions. [2022-07-22 00:34:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 00:34:53,518 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 0 states have call successors, (0), 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 58 [2022-07-22 00:34:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:54,024 INFO L225 Difference]: With dead ends: 207477 [2022-07-22 00:34:54,025 INFO L226 Difference]: Without dead ends: 207476 [2022-07-22 00:34:54,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:34:54,071 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 569 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:54,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 306 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 00:34:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207476 states. [2022-07-22 00:34:57,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207476 to 115068. [2022-07-22 00:34:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115068 states, 115062 states have (on average 1.3967860805478785) internal successors, (160717), 115067 states have internal predecessors, (160717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:57,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115068 states to 115068 states and 160717 transitions. [2022-07-22 00:34:57,772 INFO L78 Accepts]: Start accepts. Automaton has 115068 states and 160717 transitions. Word has length 58 [2022-07-22 00:34:57,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:57,773 INFO L495 AbstractCegarLoop]: Abstraction has 115068 states and 160717 transitions. [2022-07-22 00:34:57,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:34:57,773 INFO L276 IsEmpty]: Start isEmpty. Operand 115068 states and 160717 transitions. [2022-07-22 00:34:57,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-22 00:34:57,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:57,779 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-07-22 00:34:57,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:57,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-22 00:34:57,985 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:34:57,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:57,985 INFO L85 PathProgramCache]: Analyzing trace with hash 921640519, now seen corresponding path program 2 times [2022-07-22 00:34:57,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:57,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803500878] [2022-07-22 00:34:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:57,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:58,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:58,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803500878] [2022-07-22 00:34:58,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803500878] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:58,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760382641] [2022-07-22 00:34:58,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:34:58,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:58,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:58,098 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:34:58,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 00:34:58,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:34:58,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:58,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 00:34:58,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:58,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:58,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760382641] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:58,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:58,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-07-22 00:34:58,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353486894] [2022-07-22 00:34:58,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:58,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 00:34:58,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:58,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 00:34:58,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:34:58,343 INFO L87 Difference]: Start difference. First operand 115068 states and 160717 transitions. Second operand has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:35:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:35:04,153 INFO L93 Difference]: Finished difference Result 405129 states and 571169 transitions. [2022-07-22 00:35:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 00:35:04,153 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 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 72 [2022-07-22 00:35:04,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:35:05,022 INFO L225 Difference]: With dead ends: 405129 [2022-07-22 00:35:05,022 INFO L226 Difference]: Without dead ends: 405128 [2022-07-22 00:35:05,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:35:05,119 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 438 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:35:05,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 306 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:35:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405128 states. [2022-07-22 00:35:12,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405128 to 224758. [2022-07-22 00:35:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224758 states, 224752 states have (on average 1.3887618352673168) internal successors, (312127), 224757 states have internal predecessors, (312127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:35:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224758 states to 224758 states and 312127 transitions. [2022-07-22 00:35:12,675 INFO L78 Accepts]: Start accepts. Automaton has 224758 states and 312127 transitions. Word has length 72 [2022-07-22 00:35:12,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:35:12,676 INFO L495 AbstractCegarLoop]: Abstraction has 224758 states and 312127 transitions. [2022-07-22 00:35:12,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:35:12,676 INFO L276 IsEmpty]: Start isEmpty. Operand 224758 states and 312127 transitions. [2022-07-22 00:35:12,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 00:35:12,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:35:12,684 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1] [2022-07-22 00:35:12,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-22 00:35:12,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-22 00:35:12,899 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-22 00:35:12,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:35:12,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1950111273, now seen corresponding path program 3 times [2022-07-22 00:35:12,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:35:12,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730033302] [2022-07-22 00:35:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:35:12,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:35:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:35:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:35:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:35:13,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730033302] [2022-07-22 00:35:13,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730033302] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:35:13,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449573249] [2022-07-22 00:35:13,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:35:13,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:35:13,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:35:13,029 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:35:13,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 00:35:13,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-22 00:35:13,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:35:13,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 00:35:13,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:35:13,823 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:35:13,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:35:13,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449573249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:35:13,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:35:13,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 24 [2022-07-22 00:35:13,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272017894] [2022-07-22 00:35:13,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:35:13,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 00:35:13,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:35:13,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 00:35:13,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:35:13,825 INFO L87 Difference]: Start difference. First operand 224758 states and 312127 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:35:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:35:15,460 INFO L93 Difference]: Finished difference Result 243072 states and 336741 transitions. [2022-07-22 00:35:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 00:35:15,460 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-22 00:35:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:35:15,461 INFO L225 Difference]: With dead ends: 243072 [2022-07-22 00:35:15,461 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 00:35:15,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:35:15,584 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 144 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:35:15,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 529 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:35:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 00:35:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 00:35:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:35:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 00:35:15,585 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2022-07-22 00:35:15,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:35:15,586 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 00:35:15,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:35:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 00:35:15,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 00:35:15,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-07-22 00:35:15,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-07-22 00:35:15,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-07-22 00:35:15,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-07-22 00:35:15,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-07-22 00:35:15,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-07-22 00:35:15,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-07-22 00:35:15,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-07-22 00:35:15,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-07-22 00:35:15,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-07-22 00:35:15,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 00:35:15,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:35:15,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.