./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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/AliasDarteFeautrierGonnord-SAS2010-easy2-1.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 d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:00:03,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:00:03,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:00:03,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:00:03,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:00:03,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:00:03,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:00:03,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:00:03,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:00:03,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:00:03,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:00:03,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:00:03,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:00:03,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:00:03,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:00:03,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:00:03,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:00:03,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:00:03,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:00:03,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:00:03,577 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:00:03,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:00:03,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:00:03,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:00:03,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:00:03,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:00:03,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:00:03,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:00:03,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:00:03,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:00:03,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:00:03,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:00:03,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:00:03,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:00:03,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:00:03,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:00:03,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:00:03,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:00:03,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:00:03,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:00:03,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:00:03,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:00:03,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-13 02:00:03,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:00:03,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:00:03,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:00:03,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:00:03,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:00:03,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:00:03,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:00:03,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:00:03,620 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:00:03,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:00:03,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:00:03,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:00:03,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:00:03,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:00:03,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:00:03,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:00:03,622 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:00:03,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:00:03,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:00:03,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:00:03,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:00:03,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:00:03,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:00:03,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:00:03,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:00:03,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:00:03,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:00:03,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:00:03,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:00:03,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:00:03,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 [2022-07-13 02:00:03,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:00:03,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:00:03,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:00:03,873 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:00:03,873 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:00:03,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2022-07-13 02:00:03,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559ea0b97/4a2d9e35e101437fb229f5d212f12edf/FLAG13da066dc [2022-07-13 02:00:04,228 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:00:04,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2022-07-13 02:00:04,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559ea0b97/4a2d9e35e101437fb229f5d212f12edf/FLAG13da066dc [2022-07-13 02:00:04,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559ea0b97/4a2d9e35e101437fb229f5d212f12edf [2022-07-13 02:00:04,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:00:04,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:00:04,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:00:04,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:00:04,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:00:04,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678d9869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04, skipping insertion in model container [2022-07-13 02:00:04,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:00:04,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:00:04,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:00:04,858 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:00:04,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:00:04,876 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:00:04,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04 WrapperNode [2022-07-13 02:00:04,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:00:04,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:00:04,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:00:04,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:00:04,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,899 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-07-13 02:00:04,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:00:04,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:00:04,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:00:04,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:00:04,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:00:04,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:00:04,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:00:04,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:00:04,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (1/1) ... [2022-07-13 02:00:04,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:00:04,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:04,953 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) [2022-07-13 02:00:04,971 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 [2022-07-13 02:00:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:00:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:00:05,022 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:00:05,024 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:00:05,142 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:00:05,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:00:05,148 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:00:05,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:00:05 BoogieIcfgContainer [2022-07-13 02:00:05,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:00:05,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:00:05,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:00:05,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:00:05,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:00:04" (1/3) ... [2022-07-13 02:00:05,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef677c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:00:05, skipping insertion in model container [2022-07-13 02:00:05,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:04" (2/3) ... [2022-07-13 02:00:05,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef677c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:00:05, skipping insertion in model container [2022-07-13 02:00:05,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:00:05" (3/3) ... [2022-07-13 02:00:05,156 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2022-07-13 02:00:05,166 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:00:05,167 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 02:00:05,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:00:05,219 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@414c0cc3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@376b5a7b [2022-07-13 02:00:05,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 02:00:05,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:00:05,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:05,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:00:05,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-07-13 02:00:05,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:05,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449367730] [2022-07-13 02:00:05,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:05,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449367730] [2022-07-13 02:00:05,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449367730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:00:05,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:00:05,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:00:05,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599442391] [2022-07-13 02:00:05,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:00:05,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:00:05,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:05,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:00:05,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:00:05,398 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 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) [2022-07-13 02:00:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:05,454 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-07-13 02:00:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:00:05,456 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 [2022-07-13 02:00:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:05,461 INFO L225 Difference]: With dead ends: 31 [2022-07-13 02:00:05,461 INFO L226 Difference]: Without dead ends: 18 [2022-07-13 02:00:05,463 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 [2022-07-13 02:00:05,466 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:05,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:05,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-13 02:00:05,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-07-13 02:00:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-07-13 02:00:05,505 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-07-13 02:00:05,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:05,505 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-07-13 02:00:05,505 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) [2022-07-13 02:00:05,505 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-07-13 02:00:05,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:00:05,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:05,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:00:05,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:00:05,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:05,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:05,507 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-07-13 02:00:05,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:05,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724314547] [2022-07-13 02:00:05,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:05,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724314547] [2022-07-13 02:00:05,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724314547] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:00:05,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:00:05,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:00:05,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880301997] [2022-07-13 02:00:05,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:00:05,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:00:05,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:05,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:00:05,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:00:05,575 INFO L87 Difference]: Start difference. First operand 17 states and 17 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) [2022-07-13 02:00:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:05,586 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-13 02:00:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:00:05,588 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 [2022-07-13 02:00:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:05,588 INFO L225 Difference]: With dead ends: 17 [2022-07-13 02:00:05,588 INFO L226 Difference]: Without dead ends: 16 [2022-07-13 02:00:05,589 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 [2022-07-13 02:00:05,590 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:05,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:05,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-13 02:00:05,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-13 02:00:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-13 02:00:05,593 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2022-07-13 02:00:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:05,594 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-13 02:00:05,594 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) [2022-07-13 02:00:05,594 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-13 02:00:05,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:00:05,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:05,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:00:05,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:00:05,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:05,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:05,595 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-07-13 02:00:05,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:05,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126726662] [2022-07-13 02:00:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:05,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126726662] [2022-07-13 02:00:05,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126726662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:00:05,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:00:05,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:00:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595193103] [2022-07-13 02:00:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:00:05,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:00:05,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:00:05,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:00:05,627 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:05,634 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-07-13 02:00:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:00:05,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-13 02:00:05,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:05,635 INFO L225 Difference]: With dead ends: 16 [2022-07-13 02:00:05,635 INFO L226 Difference]: Without dead ends: 15 [2022-07-13 02:00:05,636 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 [2022-07-13 02:00:05,637 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:05,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:05,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-07-13 02:00:05,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-07-13 02:00:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 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) [2022-07-13 02:00:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-07-13 02:00:05,640 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-07-13 02:00:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:05,640 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-07-13 02:00:05,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-07-13 02:00:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:00:05,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:05,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:00:05,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:00:05,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-07-13 02:00:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:05,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324235066] [2022-07-13 02:00:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:05,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324235066] [2022-07-13 02:00:05,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324235066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:00:05,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:00:05,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:00:05,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447102955] [2022-07-13 02:00:05,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:00:05,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:00:05,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:05,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:00:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:00:05,669 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:05,681 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-07-13 02:00:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:00:05,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 02:00:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:05,682 INFO L225 Difference]: With dead ends: 19 [2022-07-13 02:00:05,685 INFO L226 Difference]: Without dead ends: 18 [2022-07-13 02:00:05,685 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 [2022-07-13 02:00:05,686 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:05,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:05,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-13 02:00:05,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-13 02:00:05,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-07-13 02:00:05,690 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2022-07-13 02:00:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:05,690 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-07-13 02:00:05,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-07-13 02:00:05,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:00:05,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:05,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:00:05,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:00:05,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:05,691 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2022-07-13 02:00:05,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:05,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558321167] [2022-07-13 02:00:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:05,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558321167] [2022-07-13 02:00:05,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558321167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:00:05,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:00:05,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:00:05,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498492251] [2022-07-13 02:00:05,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:00:05,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:00:05,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:05,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:00:05,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:00:05,735 INFO L87 Difference]: Start difference. First operand 18 states and 18 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) [2022-07-13 02:00:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:05,750 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-07-13 02:00:05,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:00:05,751 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 [2022-07-13 02:00:05,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:05,751 INFO L225 Difference]: With dead ends: 18 [2022-07-13 02:00:05,751 INFO L226 Difference]: Without dead ends: 17 [2022-07-13 02:00:05,751 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 [2022-07-13 02:00:05,752 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 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 [2022-07-13 02:00:05,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-13 02:00:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-13 02:00:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-07-13 02:00:05,756 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-07-13 02:00:05,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:05,756 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-07-13 02:00:05,756 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) [2022-07-13 02:00:05,756 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-07-13 02:00:05,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:00:05,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:05,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:00:05,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:00:05,757 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:05,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:05,757 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2022-07-13 02:00:05,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:05,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143791795] [2022-07-13 02:00:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:05,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143791795] [2022-07-13 02:00:05,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143791795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:00:05,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:00:05,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:00:05,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140095731] [2022-07-13 02:00:05,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:00:05,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:00:05,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:05,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:00:05,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:00:05,791 INFO L87 Difference]: Start difference. First operand 17 states and 17 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) [2022-07-13 02:00:05,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:05,804 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-13 02:00:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:00:05,805 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 [2022-07-13 02:00:05,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:05,807 INFO L225 Difference]: With dead ends: 17 [2022-07-13 02:00:05,807 INFO L226 Difference]: Without dead ends: 16 [2022-07-13 02:00:05,807 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 [2022-07-13 02:00:05,811 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:05,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:05,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-13 02:00:05,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-13 02:00:05,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-13 02:00:05,816 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-07-13 02:00:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:05,816 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-13 02:00:05,816 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) [2022-07-13 02:00:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-13 02:00:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:00:05,817 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:05,817 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:00:05,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:00:05,817 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:05,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:05,817 INFO L85 PathProgramCache]: Analyzing trace with hash -851832465, now seen corresponding path program 1 times [2022-07-13 02:00:05,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:05,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106364774] [2022-07-13 02:00:05,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:05,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106364774] [2022-07-13 02:00:05,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106364774] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:05,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944612777] [2022-07-13 02:00:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:05,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:05,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:05,877 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) [2022-07-13 02:00:05,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:00:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:05,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:00:05,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:05,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944612777] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:05,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:05,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-13 02:00:05,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854380112] [2022-07-13 02:00:06,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:06,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:00:06,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:06,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:00:06,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:00:06,009 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:06,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:06,042 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-07-13 02:00:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:00:06,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 02:00:06,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:06,043 INFO L225 Difference]: With dead ends: 37 [2022-07-13 02:00:06,043 INFO L226 Difference]: Without dead ends: 36 [2022-07-13 02:00:06,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:00:06,049 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:06,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-13 02:00:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-07-13 02:00:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-07-13 02:00:06,053 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2022-07-13 02:00:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:06,053 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-07-13 02:00:06,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:06,053 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-07-13 02:00:06,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:00:06,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:06,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:00:06,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 02:00:06,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:06,275 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2020832000, now seen corresponding path program 1 times [2022-07-13 02:00:06,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:06,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767677385] [2022-07-13 02:00:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:06,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:06,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:06,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767677385] [2022-07-13 02:00:06,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767677385] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:06,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058805660] [2022-07-13 02:00:06,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:06,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:06,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:06,303 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) [2022-07-13 02:00:06,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:00:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:06,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:00:06,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:06,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:06,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:06,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058805660] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:06,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:06,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-13 02:00:06,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509586866] [2022-07-13 02:00:06,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:06,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:00:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:06,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:00:06,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:00:06,452 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:06,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:06,481 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-07-13 02:00:06,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:00:06,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-13 02:00:06,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:06,484 INFO L225 Difference]: With dead ends: 38 [2022-07-13 02:00:06,484 INFO L226 Difference]: Without dead ends: 37 [2022-07-13 02:00:06,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:00:06,485 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 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 [2022-07-13 02:00:06,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-13 02:00:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-13 02:00:06,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 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) [2022-07-13 02:00:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2022-07-13 02:00:06,492 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 14 [2022-07-13 02:00:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:06,492 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2022-07-13 02:00:06,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:06,492 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2022-07-13 02:00:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-13 02:00:06,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:06,493 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-07-13 02:00:06,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:06,698 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 [2022-07-13 02:00:06,699 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:06,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash 85812132, now seen corresponding path program 2 times [2022-07-13 02:00:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:06,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113080084] [2022-07-13 02:00:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:06,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:06,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:06,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113080084] [2022-07-13 02:00:06,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113080084] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:06,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180656649] [2022-07-13 02:00:06,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:00:06,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:06,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:06,756 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) [2022-07-13 02:00:06,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:00:06,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:00:06,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:06,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:00:06,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:06,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:06,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180656649] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:06,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:06,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-13 02:00:06,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334559388] [2022-07-13 02:00:06,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:06,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:00:06,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:06,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:00:06,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:00:06,937 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 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) [2022-07-13 02:00:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:06,984 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2022-07-13 02:00:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:00:06,984 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 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 [2022-07-13 02:00:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:06,985 INFO L225 Difference]: With dead ends: 82 [2022-07-13 02:00:06,985 INFO L226 Difference]: Without dead ends: 81 [2022-07-13 02:00:06,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:00:06,986 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 36 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 70 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-07-13 02:00:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2022-07-13 02:00:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 75 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:06,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2022-07-13 02:00:06,991 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 32 [2022-07-13 02:00:06,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:06,992 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2022-07-13 02:00:06,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 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) [2022-07-13 02:00:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2022-07-13 02:00:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-13 02:00:06,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:06,992 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2022-07-13 02:00:07,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:07,207 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 [2022-07-13 02:00:07,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash 923728043, now seen corresponding path program 2 times [2022-07-13 02:00:07,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:07,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268515612] [2022-07-13 02:00:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:07,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:07,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:07,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268515612] [2022-07-13 02:00:07,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268515612] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:07,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827021239] [2022-07-13 02:00:07,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:00:07,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:07,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:07,304 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) [2022-07-13 02:00:07,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:00:07,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:00:07,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:07,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:00:07,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:07,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:07,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827021239] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:07,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:07,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-13 02:00:07,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481645684] [2022-07-13 02:00:07,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:07,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:00:07,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:07,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:00:07,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:00:07,467 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:07,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:07,509 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-07-13 02:00:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:00:07,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 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 35 [2022-07-13 02:00:07,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:07,523 INFO L225 Difference]: With dead ends: 80 [2022-07-13 02:00:07,523 INFO L226 Difference]: Without dead ends: 79 [2022-07-13 02:00:07,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:00:07,524 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:07,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 67 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:00:07,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-07-13 02:00:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-07-13 02:00:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 1.025974025974026) internal successors, (79), 78 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2022-07-13 02:00:07,538 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 35 [2022-07-13 02:00:07,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:07,539 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2022-07-13 02:00:07,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2022-07-13 02:00:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-13 02:00:07,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:07,540 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2022-07-13 02:00:07,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-13 02:00:07,743 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 [2022-07-13 02:00:07,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1891218564, now seen corresponding path program 3 times [2022-07-13 02:00:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:07,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259509330] [2022-07-13 02:00:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:07,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:07,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259509330] [2022-07-13 02:00:07,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259509330] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:07,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130893500] [2022-07-13 02:00:07,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:00:07,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:07,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:07,901 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) [2022-07-13 02:00:07,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:00:07,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-13 02:00:07,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:07,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:00:07,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:08,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:08,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130893500] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:08,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:08,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-13 02:00:08,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313502955] [2022-07-13 02:00:08,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:08,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 02:00:08,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:08,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 02:00:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:00:08,276 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:08,363 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2022-07-13 02:00:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 02:00:08,364 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-13 02:00:08,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:08,365 INFO L225 Difference]: With dead ends: 172 [2022-07-13 02:00:08,365 INFO L226 Difference]: Without dead ends: 171 [2022-07-13 02:00:08,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:00:08,366 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 95 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:08,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 139 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:00:08,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-07-13 02:00:08,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 160. [2022-07-13 02:00:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0822784810126582) internal successors, (171), 159 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2022-07-13 02:00:08,374 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 74 [2022-07-13 02:00:08,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:08,374 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2022-07-13 02:00:08,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.391304347826087) internal successors, (147), 24 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:08,375 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2022-07-13 02:00:08,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-13 02:00:08,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:08,376 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2022-07-13 02:00:08,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:08,592 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 [2022-07-13 02:00:08,593 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:08,593 INFO L85 PathProgramCache]: Analyzing trace with hash -88704053, now seen corresponding path program 3 times [2022-07-13 02:00:08,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:08,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174109813] [2022-07-13 02:00:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:08,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:08,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:08,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174109813] [2022-07-13 02:00:08,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174109813] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:08,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975237346] [2022-07-13 02:00:08,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:00:08,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:08,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:08,714 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) [2022-07-13 02:00:08,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:00:08,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-13 02:00:08,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:08,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:00:08,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:08,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:09,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975237346] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:09,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:09,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-13 02:00:09,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226657697] [2022-07-13 02:00:09,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:09,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 02:00:09,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:09,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 02:00:09,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:00:09,067 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:09,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:09,133 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2022-07-13 02:00:09,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 02:00:09,133 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 0 states have call successors, (0), 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 77 [2022-07-13 02:00:09,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:09,135 INFO L225 Difference]: With dead ends: 164 [2022-07-13 02:00:09,135 INFO L226 Difference]: Without dead ends: 163 [2022-07-13 02:00:09,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:00:09,136 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:09,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 127 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:00:09,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-07-13 02:00:09,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-07-13 02:00:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 161 states have (on average 1.0124223602484472) internal successors, (163), 162 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2022-07-13 02:00:09,156 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 77 [2022-07-13 02:00:09,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:09,158 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2022-07-13 02:00:09,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2022-07-13 02:00:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-13 02:00:09,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:09,164 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2022-07-13 02:00:09,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:09,368 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 [2022-07-13 02:00:09,368 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:09,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:09,369 INFO L85 PathProgramCache]: Analyzing trace with hash 468127300, now seen corresponding path program 4 times [2022-07-13 02:00:09,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:09,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177378379] [2022-07-13 02:00:09,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:09,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:09,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:09,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:09,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177378379] [2022-07-13 02:00:09,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177378379] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:09,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875918550] [2022-07-13 02:00:09,667 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:00:09,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:09,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:09,669 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) [2022-07-13 02:00:09,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:00:09,749 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:00:09,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:09,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 02:00:09,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:09,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:10,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875918550] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:10,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:10,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-13 02:00:10,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161819987] [2022-07-13 02:00:10,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 02:00:10,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:10,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 02:00:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:00:10,643 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:10,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:10,771 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2022-07-13 02:00:10,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-13 02:00:10,772 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 0 states have call successors, (0), 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 158 [2022-07-13 02:00:10,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:10,774 INFO L225 Difference]: With dead ends: 352 [2022-07-13 02:00:10,774 INFO L226 Difference]: Without dead ends: 351 [2022-07-13 02:00:10,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:00:10,777 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 188 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:10,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 271 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:00:10,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-13 02:00:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 328. [2022-07-13 02:00:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 326 states have (on average 1.0766871165644172) internal successors, (351), 327 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 351 transitions. [2022-07-13 02:00:10,784 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 351 transitions. Word has length 158 [2022-07-13 02:00:10,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:10,784 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 351 transitions. [2022-07-13 02:00:10,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.702127659574468) internal successors, (315), 48 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 351 transitions. [2022-07-13 02:00:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-13 02:00:10,787 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:10,787 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1] [2022-07-13 02:00:10,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:11,003 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 [2022-07-13 02:00:11,004 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:11,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash 221628939, now seen corresponding path program 4 times [2022-07-13 02:00:11,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:11,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548025831] [2022-07-13 02:00:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:11,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:11,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:11,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548025831] [2022-07-13 02:00:11,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548025831] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:11,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268455456] [2022-07-13 02:00:11,261 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:00:11,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:11,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:11,263 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) [2022-07-13 02:00:11,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 02:00:11,322 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:00:11,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:11,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 02:00:11,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:11,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:11,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:12,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268455456] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:12,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:12,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-13 02:00:12,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809448208] [2022-07-13 02:00:12,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:12,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 02:00:12,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:12,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 02:00:12,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:00:12,225 INFO L87 Difference]: Start difference. First operand 328 states and 351 transitions. Second operand has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:12,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:12,332 INFO L93 Difference]: Finished difference Result 332 states and 355 transitions. [2022-07-13 02:00:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-13 02:00:12,333 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-07-13 02:00:12,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:12,334 INFO L225 Difference]: With dead ends: 332 [2022-07-13 02:00:12,334 INFO L226 Difference]: Without dead ends: 331 [2022-07-13 02:00:12,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:00:12,335 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:12,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 245 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:00:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-13 02:00:12,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-13 02:00:12,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 329 states have (on average 1.006079027355623) internal successors, (331), 330 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:12,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2022-07-13 02:00:12,342 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 161 [2022-07-13 02:00:12,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:12,342 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 331 transitions. [2022-07-13 02:00:12,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 331 transitions. [2022-07-13 02:00:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-07-13 02:00:12,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:12,346 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1, 1] [2022-07-13 02:00:12,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:12,566 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 [2022-07-13 02:00:12,566 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:12,567 INFO L85 PathProgramCache]: Analyzing trace with hash -136535612, now seen corresponding path program 5 times [2022-07-13 02:00:12,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:12,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986919433] [2022-07-13 02:00:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:12,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:13,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:13,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986919433] [2022-07-13 02:00:13,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986919433] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:13,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975982710] [2022-07-13 02:00:13,467 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:00:13,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:13,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:13,469 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) [2022-07-13 02:00:13,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 02:00:13,582 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-13 02:00:13,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:13,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-13 02:00:13,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:14,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:16,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975982710] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:16,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:16,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-13 02:00:16,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122579526] [2022-07-13 02:00:16,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:16,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-13 02:00:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:16,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-13 02:00:16,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:00:16,210 INFO L87 Difference]: Start difference. First operand 331 states and 331 transitions. Second operand has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:16,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:16,615 INFO L93 Difference]: Finished difference Result 712 states and 759 transitions. [2022-07-13 02:00:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-13 02:00:16,615 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 0 states have call successors, (0), 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 326 [2022-07-13 02:00:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:16,618 INFO L225 Difference]: With dead ends: 712 [2022-07-13 02:00:16,618 INFO L226 Difference]: Without dead ends: 711 [2022-07-13 02:00:16,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:00:16,620 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 466 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:16,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 540 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:00:16,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-13 02:00:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2022-07-13 02:00:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 662 states have (on average 1.0740181268882176) internal successors, (711), 663 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:16,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 711 transitions. [2022-07-13 02:00:16,634 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 711 transitions. Word has length 326 [2022-07-13 02:00:16,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:16,634 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 711 transitions. [2022-07-13 02:00:16,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.852631578947369) internal successors, (651), 96 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 711 transitions. [2022-07-13 02:00:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-07-13 02:00:16,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:16,638 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1, 1] [2022-07-13 02:00:16,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:16,852 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 [2022-07-13 02:00:16,852 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash -198343029, now seen corresponding path program 5 times [2022-07-13 02:00:16,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:16,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123780729] [2022-07-13 02:00:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:16,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:17,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:17,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123780729] [2022-07-13 02:00:17,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123780729] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:17,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688739516] [2022-07-13 02:00:17,738 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:00:17,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:17,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:17,739 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) [2022-07-13 02:00:17,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 02:00:17,854 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-13 02:00:17,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:17,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-13 02:00:17,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:18,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:20,534 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:20,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688739516] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:20,535 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:20,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-13 02:00:20,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895501160] [2022-07-13 02:00:20,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:20,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-13 02:00:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-13 02:00:20,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:00:20,541 INFO L87 Difference]: Start difference. First operand 664 states and 711 transitions. Second operand has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:20,922 INFO L93 Difference]: Finished difference Result 668 states and 715 transitions. [2022-07-13 02:00:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-13 02:00:20,922 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 0 states have call successors, (0), 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 329 [2022-07-13 02:00:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:20,924 INFO L225 Difference]: With dead ends: 668 [2022-07-13 02:00:20,924 INFO L226 Difference]: Without dead ends: 667 [2022-07-13 02:00:20,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:00:20,926 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 94 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:20,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 489 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:00:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-07-13 02:00:20,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2022-07-13 02:00:20,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 665 states have (on average 1.0030075187969925) internal successors, (667), 666 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 667 transitions. [2022-07-13 02:00:20,943 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 667 transitions. Word has length 329 [2022-07-13 02:00:20,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:20,943 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 667 transitions. [2022-07-13 02:00:20,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:20,943 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 667 transitions. [2022-07-13 02:00:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2022-07-13 02:00:20,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:20,952 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 1, 1, 1] [2022-07-13 02:00:20,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:21,167 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 [2022-07-13 02:00:21,168 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:21,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:21,168 INFO L85 PathProgramCache]: Analyzing trace with hash -395097916, now seen corresponding path program 6 times [2022-07-13 02:00:21,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:21,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436296259] [2022-07-13 02:00:21,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:21,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:23,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:23,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436296259] [2022-07-13 02:00:23,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436296259] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:23,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225701040] [2022-07-13 02:00:23,906 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:00:23,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:23,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:23,907 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) [2022-07-13 02:00:23,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 02:00:24,139 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-13 02:00:24,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:24,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-13 02:00:24,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:24,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:32,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225701040] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:32,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:32,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-13 02:00:32,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698399404] [2022-07-13 02:00:32,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:32,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-13 02:00:32,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:32,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-13 02:00:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:00:32,540 INFO L87 Difference]: Start difference. First operand 667 states and 667 transitions. Second operand has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:34,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:34,274 INFO L93 Difference]: Finished difference Result 1432 states and 1527 transitions. [2022-07-13 02:00:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-13 02:00:34,275 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 0 states have call successors, (0), 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 662 [2022-07-13 02:00:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:34,282 INFO L225 Difference]: With dead ends: 1432 [2022-07-13 02:00:34,282 INFO L226 Difference]: Without dead ends: 1431 [2022-07-13 02:00:34,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:00:34,286 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1026 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:34,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1065 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:00:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2022-07-13 02:00:34,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1336. [2022-07-13 02:00:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1334 states have (on average 1.0727136431784108) internal successors, (1431), 1335 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1431 transitions. [2022-07-13 02:00:34,308 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1431 transitions. Word has length 662 [2022-07-13 02:00:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:34,308 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 1431 transitions. [2022-07-13 02:00:34,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.9267015706806285) internal successors, (1323), 192 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1431 transitions. [2022-07-13 02:00:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-07-13 02:00:34,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:34,315 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 1, 1, 1] [2022-07-13 02:00:34,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:34,531 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 [2022-07-13 02:00:34,531 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:34,532 INFO L85 PathProgramCache]: Analyzing trace with hash 2143387531, now seen corresponding path program 6 times [2022-07-13 02:00:34,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:34,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116972572] [2022-07-13 02:00:34,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:34,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:37,396 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:37,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:37,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116972572] [2022-07-13 02:00:37,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116972572] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:37,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731046240] [2022-07-13 02:00:37,397 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:00:37,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:37,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:37,398 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) [2022-07-13 02:00:37,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 02:00:37,638 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-13 02:00:37,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:00:37,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1238 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-13 02:00:37,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:38,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 31067 backedges. 0 proven. 31067 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:46,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731046240] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:46,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:46,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-13 02:00:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984016558] [2022-07-13 02:00:46,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:46,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-13 02:00:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:46,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-13 02:00:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:00:46,508 INFO L87 Difference]: Start difference. First operand 1336 states and 1431 transitions. Second operand has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:47,904 INFO L93 Difference]: Finished difference Result 1340 states and 1435 transitions. [2022-07-13 02:00:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-13 02:00:47,905 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 0 states have call successors, (0), 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 665 [2022-07-13 02:00:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:47,908 INFO L225 Difference]: With dead ends: 1340 [2022-07-13 02:00:47,908 INFO L226 Difference]: Without dead ends: 1339 [2022-07-13 02:00:47,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1424 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:00:47,911 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 190 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:47,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 973 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:00:47,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-07-13 02:00:47,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1339. [2022-07-13 02:00:47,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1337 states have (on average 1.0014958863126402) internal successors, (1339), 1338 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:47,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1339 transitions. [2022-07-13 02:00:47,942 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1339 transitions. Word has length 665 [2022-07-13 02:00:47,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:47,943 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1339 transitions. [2022-07-13 02:00:47,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:00:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1339 transitions. [2022-07-13 02:00:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2022-07-13 02:00:47,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:47,955 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 190, 1, 1, 1] [2022-07-13 02:00:47,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:48,177 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 [2022-07-13 02:00:48,177 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:48,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash -28404028, now seen corresponding path program 7 times [2022-07-13 02:00:48,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:48,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066137681] [2022-07-13 02:00:48,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:48,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:58,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:58,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066137681] [2022-07-13 02:00:58,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066137681] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:58,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001628806] [2022-07-13 02:00:58,532 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-13 02:00:58,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:58,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:58,533 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) [2022-07-13 02:00:58,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 02:00:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:58,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-13 02:00:58,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:01:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:01:00,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:01:29,867 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:01:29,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001628806] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:01:29,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:01:29,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-13 02:01:29,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138346301] [2022-07-13 02:01:29,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:01:29,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-13 02:01:29,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:01:29,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-13 02:01:29,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-07-13 02:01:29,885 INFO L87 Difference]: Start difference. First operand 1339 states and 1339 transitions. Second operand has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:01:43,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:01:43,664 INFO L93 Difference]: Finished difference Result 2872 states and 3063 transitions. [2022-07-13 02:01:43,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-07-13 02:01:43,665 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 0 states have call successors, (0), 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 1334 [2022-07-13 02:01:43,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:01:43,682 INFO L225 Difference]: With dead ends: 2872 [2022-07-13 02:01:43,682 INFO L226 Difference]: Without dead ends: 2871 [2022-07-13 02:01:43,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2858 GetRequests, 2476 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.4s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-07-13 02:01:43,688 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2397 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 02:01:43,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 2120 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 02:01:43,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2022-07-13 02:01:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2680. [2022-07-13 02:01:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2678 states have (on average 1.072068707991038) internal successors, (2871), 2679 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:01:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 2871 transitions. [2022-07-13 02:01:43,724 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 2871 transitions. Word has length 1334 [2022-07-13 02:01:43,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:01:43,726 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 2871 transitions. [2022-07-13 02:01:43,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.9634464751958225) internal successors, (2667), 384 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:01:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 2871 transitions. [2022-07-13 02:01:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1338 [2022-07-13 02:01:43,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:01:43,738 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 190, 1, 1, 1] [2022-07-13 02:01:43,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 02:01:43,947 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 [2022-07-13 02:01:43,947 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:01:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:01:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash -75796085, now seen corresponding path program 7 times [2022-07-13 02:01:43,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:01:43,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844532178] [2022-07-13 02:01:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:01:43,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:01:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:01:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 126635 backedges. 0 proven. 126635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:01:55,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:01:55,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844532178] [2022-07-13 02:01:55,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844532178] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:01:55,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961002434] [2022-07-13 02:01:55,007 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-13 02:01:55,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:01:55,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:01:55,008 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:01:55,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 02:01:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:01:55,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 2486 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-13 02:01:55,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:01:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 126635 backedges. 0 proven. 126635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:01:56,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:02:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 126635 backedges. 0 proven. 126635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:02:28,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961002434] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:02:28,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:02:28,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-13 02:02:28,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543543366] [2022-07-13 02:02:28,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:02:28,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-13 02:02:28,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:02:28,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-13 02:02:28,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-07-13 02:02:28,120 INFO L87 Difference]: Start difference. First operand 2680 states and 2871 transitions. Second operand has 384 states, 383 states have (on average 6.97911227154047) internal successors, (2673), 384 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:37,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:02:37,808 INFO L93 Difference]: Finished difference Result 2684 states and 2875 transitions. [2022-07-13 02:02:37,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-07-13 02:02:37,809 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.97911227154047) internal successors, (2673), 384 states have internal predecessors, (2673), 0 states have call successors, (0), 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 1337 [2022-07-13 02:02:37,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:02:37,815 INFO L225 Difference]: With dead ends: 2684 [2022-07-13 02:02:37,815 INFO L226 Difference]: Without dead ends: 2683 [2022-07-13 02:02:37,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2864 GetRequests, 2482 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.8s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-07-13 02:02:37,821 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 382 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 02:02:37,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1937 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 02:02:37,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-07-13 02:02:37,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2683. [2022-07-13 02:02:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2681 states have (on average 1.000745990302126) internal successors, (2683), 2682 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 2683 transitions. [2022-07-13 02:02:37,862 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 2683 transitions. Word has length 1337 [2022-07-13 02:02:37,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:02:37,864 INFO L495 AbstractCegarLoop]: Abstraction has 2683 states and 2683 transitions. [2022-07-13 02:02:37,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.97911227154047) internal successors, (2673), 384 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:02:37,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 2683 transitions. [2022-07-13 02:02:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2679 [2022-07-13 02:02:37,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:02:37,906 INFO L195 NwaCegarLoop]: trace histogram [383, 382, 382, 382, 382, 382, 382, 1, 1, 1] [2022-07-13 02:02:37,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-13 02:02:38,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:02:38,124 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:02:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:02:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1933757756, now seen corresponding path program 8 times [2022-07-13 02:02:38,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:02:38,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552938519] [2022-07-13 02:02:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:02:38,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:02:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:03:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 510161 backedges. 0 proven. 510161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:20,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:03:20,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552938519] [2022-07-13 02:03:20,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552938519] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:03:20,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469324595] [2022-07-13 02:03:20,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:03:20,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:03:20,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:03:20,049 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:03:20,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 02:03:20,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:03:20,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:03:20,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 4977 conjuncts, 384 conjunts are in the unsatisfiable core [2022-07-13 02:03:20,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:03:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 510161 backedges. 0 proven. 510161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:03:23,111 INFO L328 TraceCheckSpWp]: Computing backward predicates...